Devices that control the supply of electric current for running electrical equipment.
Units that convert some other form of energy into electrical energy.
An arrangement of wires distributing electricity.
The physical effects involving the presence of electric charges at rest and in motion.
Fields representing the joint interplay of electric and magnetic forces.
Electronic devices that increase the magnitude of a signal's power level or current.
Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.
Methods of creating machines and devices.
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
Any device or element which converts an input signal into an output signal of a different form. Examples include the microphone, phonographic pickup, loudspeaker, barometer, photoelectric cell, automobile horn, doorbell, and underwater sound transducer. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
In about 250 species of electric fishes, modified muscle fibers forming disklike multinucleate plates arranged in stacks like batteries in series and embedded in a gelatinous matrix. A large torpedo ray may have half a million plates. Muscles in different parts of the body may be modified, i.e., the trunk and tail in the electric eel, the hyobranchial apparatus in the electric ray, and extrinsic eye muscles in the stargazers. Powerful electric organs emit pulses in brief bursts several times a second. They serve to stun prey and ward off predators. A large torpedo ray can produce of shock of more than 200 volts, capable of stunning a human. (Storer et al., General Zoology, 6th ed, p672)
An order of neotropical electric fish found chiefly in the waters of South America. They continually emit weak electric discharges, which they use in object location and communication. A most popular species of research interest is the electric eel, ELECTROPHORUS electricus.
Use of electric potential or currents to elicit biological responses.
Injuries caused by electric currents. The concept excludes electric burns (BURNS, ELECTRIC), but includes accidental electrocution and electric shock.
Any of a variety of procedures which use biomolecular probes to measure the presence or concentration of biological molecules, biological structures, microorganisms, etc., by translating a biochemical interaction at the probe surface into a quantifiable physical signal.
High temperature weather exceeding the average and of several weeks duration. Extreme heat is a dangerous situation that can bring on health emergencies in susceptible people.
A plant genus of the family FABACEAE that contains kukulkanin, a CHALCONE.
Apparatus and instruments that generate and operate with ELECTRICITY, and their electrical components.
Any sound which is unwanted or interferes with HEARING other sounds.
Specialized junctions between NEURONS which connect the cytoplasm of one neuron to another allowing direct passage of an ion current.
A group of homologous proteins which form the intermembrane channels of GAP JUNCTIONS. The connexins are the products of an identified gene family which has both highly conserved and highly divergent regions. The variety contributes to the wide range of functional properties of gap junctions.
Connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of CONNEXINS, the family of proteins which form the junctions.
Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.
The communication from a NEURON to a target (neuron, muscle, or secretory cell) across a SYNAPSE. In chemical synaptic transmission, the presynaptic neuron releases a NEUROTRANSMITTER that diffuses across the synaptic cleft and binds to specific synaptic receptors, activating them. The activated receptors modulate specific ion channels and/or second-messenger systems in the postsynaptic cell. In electrical synaptic transmission, electrical signals are communicated as an ionic current flow across ELECTRICAL SYNAPSES.
A legal concept for individuals who are designated to act on behalf of persons who are considered incapable of acting in their own behalf, e.g., minors and persons found to be not mentally competent.
Designs for approaching areas inside or outside facilities.
Head injuries which feature compromise of the skull and dura mater. These may result from gunshot wounds (WOUNDS, GUNSHOT), stab wounds (WOUNDS, STAB), and other forms of trauma.
A tight junction-associated MARVEL protein that may play a role in separating the endolymphatic and perilymphatic spaces of the ORGAN OF CORTI. Defects in the gene that codes for MARVELD2 protein are a cause of deafness autosomal recessive type 49.

Lead exposure in the lead-acid storage battery manufacturing and PVC compounding industries. (1/306)

This study was conducted as part of the Human Exposure Assessment Location (HEAL) Project which comes under the United Nations Environment Programme/World Health Organisation (UNEP/WHO) Global environmental Monitoring System (GEMS). The objective of the study was to evaluate workers' exposure to lead in industries with the highest exposure. All subjects were interviewed about their occupational and smoking histories, the use of personal protective equipment and personal hygiene. The contribution of a dietary source of lead intake from specified foods known to contain lead locally and personal air sampling for lead were assessed. A total of 61 workers from two PVC compounding and 50 workers from two lead acid battery manufacturing plants were studied together with 111 matched controls. In the PVC compounding plants the mean lead-in-air level was 0.0357 mg/m3, with the highest levels occurring during the pouring and mixing operations. This was lower than the mean lead-in-air level of 0.0886 mg/m3 in the lead battery manufacturing plants where the highest exposure was in the loading of lead ingots into milling machines. Workers in lead battery manufacturing had significantly higher mean blood lead than the PVC workers (means, 32.51 and 23.91 mcg/100 ml respectively), but there was poor correlation with lead-in-air levels. Among the lead workers, the Malays had significantly higher blood lead levels than the Chinese (mean blood levels were 33.03 and 25.35 mcg/100 ml respectively) although there was no significant difference between the two ethnic groups in the control group. There were no significant differences between the exposed and control group in terms of dietary intake of specified local foods known to contain lead. However, Malays consumed significantly more fish than the Chinese did. There were no ethnic differences in the hours of overtime work, number of years of exposure, usage of gloves and respirators and smoking habits. Among the Malays, 94.3% eat with their hands compared with 9.2% of the Chinese. Workers who ate with bare hands at least once a week had higher blood lead levels after adjusting for lead-in-air levels (mean blood lead was 30.2 and 26.4 mcg/100 ml respectively). The study indicated that the higher blood lead levels observed in the Malay workers might have been due to their higher exposure and eating with bare hands.  (+info)

Cancer mortality and morbidity among plutonium workers at the Sellafield plant of British Nuclear Fuels. (2/306)

The mortality of all 14 319 workers employed at the Sellafield plant of British Nuclear Fuels between 1947 and 1975 was studied up to the end of 1992, and cancer incidence was examined from 1971 to 1986, in relation to their exposures to plutonium and to external radiation. The cancer mortality rate was 5% lower than that of England and Wales and 3% less than that of Cumbria. The significant excesses of deaths from cancer of the pleura and thyroid found in an earlier study persist with further follow-up (14 observed, 4.0 expected for pleura; 6 observed, 2.2 expected for thyroid). All of the deaths from pleural cancer were among radiation workers. For neither site was there a significant association between the risk of the cancer and accumulated radiation dose. There were significant deficits of deaths from cancers of mouth and pharynx, liver and gall bladder, and larynx and leukaemia when compared with the national rates. Among all radiation workers, there was a significant positive association between accumulated external radiation dose and mortality from cancers of ill-defined and secondary sites (10-year lag, P = 0.04), leukaemia (no lag, P = 0.03; 2-year lag, P = 0.05), multiple myeloma (20-year lag, P = 0.02), all lymphatic and haematopoietic cancers (20-year lag, P= 0.03) and all causes of death combined (20-year lag, P= 0.008). Among plutonium workers, there were significant excesses of deaths from cancer of the breast (6 observed, 2.6 expected) and ill-defined and secondary cancers (29 observed, 20.1 expected). No significant positive trends were observed between the risk of deaths from cancers of any specific site, or all cancers combined, and cumulative plutonium and external radiation doses. For no cancer site was there a significant excess of cancer registrations compared with rates for England and Wales. Analysis of trends in cancer incidence showed significant increases in risk with cumulative plutonium plus external radiation doses for all lymphatic and haematopoietic neoplasms for 0-, 10- and 20-year lag periods. Taken as a whole, our findings do not suggest that workers at Sellafield who have been exposed to plutonium are at an overall significantly increased risk of cancer compared with other radiation workers.  (+info)

Button battery impaction in nasal cavity. (3/306)

A button battery inserted in the nose of children is an unusual foreign body which is capable of causing extensive tissue damage, resulting from electrical and chemical burns. We report a case of button battery in the nose of a 4-year-old boy presenting with unilateral nasal discharge, and necrosis in the septum and turbinate of the right nasal cavity. Mercury level in concentrated urine was within normal limit. Microscopic examination disclosed extensive liquefaction necrosis with calcification and fibrosis. Numerous dark brown to black granules were noted in the elastic and collagen fibers and interstitium. Dark-field examination of the section revealed brilliantly refractile granules. Polarized microscopy failed to show the granules. Most brown pigments reacted to prussian blue. Tissue mercury analysis yielded a mercury content of 8.01 ppm. We report this case to emphasize the hazards of button battery impaction and to draw attention to the significance of the problem through histopathologic examination.  (+info)

Are children living near high-voltage power lines at increased risk of acute lymphoblastic leukemia? (4/306)

In the National Cancer Institute/Children's Cancer Group case-control study of childhood acute lymphoblastic leukemia (1989-1993), living in a home with a high-voltage wire code was not associated with disease risk. To further investigate risk near power lines, the authors analyzed distance to transmission and three-phase primary distribution lines within 40 m of homes and created an exposure index of distance and strength of multiple power lines (408 case-control pairs). Neither distance nor exposure index was related to risk of childhood acute lymphoblastic leukemia, although both were associated with in-home magnetic field measurements. Residence near high-voltage lines did not increase risk.  (+info)

Childhood cancer and residential proximity to power lines. UK Childhood Cancer Study Investigators. (5/306)

In the United Kingdom Childhood Cancer Study, a population-based case-control study covering the whole of England, Scotland and Wales, measured power-frequency magnetic fields were not found to be associated with risk for any malignancy. To examine further the risk associated with residential proximity to electricity supply equipment, distances to high-voltage lines, underground cables, substations and distribution circuits were collected for 3380 cases and 3390 controls. Magnetic field exposure from this equipment was calculated using distance, load and other circuit information. There was no evidence that either proximity to electrical installations or the magnetic field levels they produce in the UK is associated with increased risk of childhood leukaemia or any other cancer. Odds ratios of 0.73 (95% CI = 0.42-1.26) for acute lymphoblastic leukaemia, 0.75 (95% CI = 0.45-1.25) for all leukaemias, 1.08 (95% CI = 0.56-2.09) for central nervous system cancers and 0.92 (95% CI = 0.64-1.34) for all malignancies were obtained for residence within 50 m of an overhead line. When individuals with a calculated magnetic field exposure > or = 0.2 microT were compared to those in a reference category of exposure <0.1 microT, odds ratios of 0.51 (95% CI = 0.11-2.33) for acute lymphoblastic leukaemia, 0.41 (95% CI = 0. 09-1.87) for total leukaemia, 0.48 (95% CI =0.06-3.76) for central nervous system cancers and 0.62 (95% CI = 0.24-1.61) for all malignancies were obtained.  (+info)

Enhancing longevity of pacemakers through reprogramming. Underutilization and cost-effectiveness. (6/306)

OBJECTIVE: This study was performed to observe the number of pacemakers that had never been reprogrammed after implantation, and the effect of optimised output programming on estimated longevity of pulse generators in patients with pacemaker METHODS: Sixty patients with Teletronics Reflex pacemakers were evaluated in a pacemaker clinic, from the time of the beginning of its activities, in June 1998, until March 1999. Telemetry was performed during the first clinic visit, and we observed how many pulse generators retained nominal output settings of the manufactures indicating the absence of reprogramming until that date. After evaluation of the capture threshold, reprogramming of pacemakers was performed with a safety margin of 2 to 2.5:1, and we compared the estimated longevity based on battery current at the manufacturer's settings with that based on settings achieved after reprogramming. RESULTS: In 95% of the cases, the original programmed setting was never reprogrammed before the patients attended the pacemaker clinic. Reprogramming the pacemaker prolonged estimated pulse generator life by 19.7+/-15.6 months (35.5%). CONCLUSION: The majority of the pacemakers evaluated had never been reprogrammed. Estimated pulse generator longevity can be prolonged significantly, using this simple, safe, efficacious, and cost-effective procedure.  (+info)

Electric accidents in the production, transmission, and distribution of electric energy: a review of the literature. (7/306)

Many work related electric accidents occurred in electric energy industries and they were very often fatal. The situation of electric accidents in electric companies worldwide is investigated by reviewing the scientific literature, to offer perspectives on the types and kinds of statistics available, the factors regarded as influencing their occurrence, their consequences, and also methodological shortcomings. Worldwide, reliable comparable data exist and indicate a downward trend in fatal electric accidents. Difficulties were encountered in compiling international statistics because of differences in how accident data were defined and recorded, variations in mandatory practices, lack of suitable data and indices, accident insurance systems, and lack of correlation between technical, financial, and medical aspects.  (+info)

Button battery ingestion: an analysis of 25 cases. (8/306)

BACKGROUND: Button batteries represent a distinct type of foreign body. Serious complications can be resulted, particularly when the battery is impacted in the esophagus. The potentially detrimental effects of button battery ingestion have often been overlooked in Taiwan. We surveyed patients following button battery ingestion to define the characteristics and outcomes of this population. METHODS: The records of 25 patients with button battery ingestion that had been reported to the Taipei Veterans General Hospital Poison Control Center from July 1988 through January 1998 were retrospectively reviewed. RESULTS: Button battery ingestion occurred most commonly in male children (N=20; 80%) and children under 3 years of age (N= 19; 76%). Most children were asymptomatic (N=22; 88%). Two children suffered abdominal pain, and one suffered dyspnea and stridor. Reported complications included black stools (N=3) and tracheoesophageal fistula formation (N= 1). Two children underwent endoscopic battery removal, and batteries passed the entire gastrointestinal tract in all other subjects. The interval between battery ingestion and passage when documented (N= 16) was never more than 5 days. CONCLUSION: Most ingested batteries passed through the gastrointestinal tract without any adverse effects. An initial roentgenogram should be obtained promptly to determine battery location and diameter, and the battery's chemical composition should be determined when possible. Esophageal impaction of the batteries requires emergency endoscopic or surgical removal. For patients without esophageal impaction, conservative intervention is recommended in the absence of symptoms and signs of injury.  (+info)

TY - JOUR. T1 - Phosphoric acid doped imidazolium polysulfone membranes for high temperature proton exchange membrane fuel cells. AU - Yang,Jingshuai. AU - Li,Qingfeng. AU - Jensen,Jens Oluf. AU - Pan,Chao. AU - Cleemann,Lars Nilausen. AU - Bjerrum,Niels J.. AU - He,Ronghuan. PY - 2012. Y1 - 2012. N2 - A novel acid-base polymer membrane is prepared by doping of imidazolium polysulfone with phosphoric acid for high temperature proton exchange membrane fuel cells. Polysulfone is first chloromethylated, followed by functionalization of the chloromethylated polysulfone with alkyl imidazoles i.e. methyl (MePSU), ethyl (EtPSU) and butyl (BuPSU) imidazoliums, as revealed by 1H NMR spectra. The imidazolium polysulfone membranes are then doped with phosphoric acid and used as a proton exchange membrane electrolyte in fuel cells. An acid doping level of about 10-11mol H3PO4 per mole of the imidazolium group is achieved in 85wt% H3PO4 at room temperature. The membranes exhibit a proton conductivity of ...
TY - JOUR. T1 - Liquid water flooding in a proton exchange membrane fuel cell cathode with an interdigitated design. AU - Kang, Simo. AU - Zhou, Biao. AU - Cheng, Chin-Hsiang. AU - Shiu, Huan Ruei. AU - Lee, Chun I.. PY - 2011/12/1. Y1 - 2011/12/1. N2 - In this paper, we studied the liquid water flooding process in the flow field of a proton exchange membrane fuel cell with an interdigitated design by using a multi-phase three-dimensional fuel cell cathode side model with a porous layer. The commercial CFD software package fluent (ANSYS Canonsburg, PA, USA) was used with a user-defined function. The results indicate that the general liquid water flooding process inside of this type of cathode design can be classified into three phases (the porous layer phase, the channel phase, and the drainage phase), and the details of liquid water behavior during this flooding process can be well understood and explained using the air-liquid interaction. Also, a liquid water avalanche phenomenon was ...
Proton exchange membrane fuel cells (PEMFCs) are electrochemical devices that show the highest power densities compared to the other type of fuel cell. In this work, nanocomposite membranes used for proton exchange membrane fuel cells as poly(vinyl alcohol)/La2Ce2O7 (PVA-LC) with the aim of increasing the water uptake and proton conductivity. Glutaraldehyde (GA) was used as cross linking agent of PVA matrix. PVA-LC nanocomposite membranes have been prepared with solutions casting method. The significant improvement has been achieved via the synergetic combination of organic and inorganic phases. Nanocomposite membranes were structurally, morphologically and electrochemically considered by FTIR, SEM and ELS, respectively. The results exhibited that the proton conductivity and the water uptake of the nanocomposite membranes were higher than that of the PVA membrane. PVA-LC nanocomposite membranes containing 4 wt.% of La2Ce2O7 nanoparticles displayed a high proton conductivity (0.019 S/cm). The highest
An alignment structure for a proton exchange membrane fuel cell is disclosed, which is used to accurately position a proton exchange membrane fuel cell onto a fuel cell manufacturing tool. The proton
TY - JOUR. T1 - An analytical model for solid oxide fuel cells with bi-layer electrolyte. AU - Shen, Shuanglin. AU - Guo, Liejin. AU - Liu, Hongtan. PY - 2013/2/12. Y1 - 2013/2/12. N2 - A theoretical model for a solid oxide fuel cell (SOFC) with a bi-layer electrolyte is developed and analytical solutions of various important relationships, such as I-V relationship, distribution of oxygen partial pressure in the bi-layer electrolyte, leakage current density etc. are obtained. Based on the assumptions of constant ionic conductivity and reversible electrodes, the model takes into considerations of transports of both ions and electrons in the electrolyte. The modeling results are compared with both experimental data and results from other models in the literature and very good agreements are obtained.. AB - A theoretical model for a solid oxide fuel cell (SOFC) with a bi-layer electrolyte is developed and analytical solutions of various important relationships, such as I-V relationship, ...
Latest Strategic Study Released on Global Solid Oxide Fuel Cell (SOFC) Market forecast to 2027, the report comprises of historical data and estimation of the Global Solid Oxide Fuel Cell (SOFC) Market. The Industry is showing continuous progress with a noteworthy rise in the Compound Annual Growth Rate (CAGR) during the forecast period owing to various factors driving the market. Some of the main players included in this research study are Bloom Energy, Siemens Energy, Aisin Seiki, Mitsubishi Heavy Industries, Delphi Corp, GE, Convion, FuelCell Energy, Atrex Energy, Inc, SOLIDpower, ZTEK Corporation, Redox Power Systems, Ceres & Elcogen, etc.. Browse TOC, Charts and Tables of Global Solid Oxide Fuel Cell (SOFC) Market Research Report available at: https://www.htfmarketreport.com/reports/1628140-global-solid-oxide-fuel-cell-26. Company ProfilesBloom Energy, Siemens Energy, Aisin Seiki, Mitsubishi Heavy Industries, Delphi Corp, GE, Convion, FuelCell Energy, Atrex Energy, Inc, SOLIDpower, ZTEK ...
TY - JOUR. T1 - Impedance characterization of high temperature proton exchange membrane fuel cell stack under the influence of carbon monoxide and methanol vapor. AU - Jeppesen, Christian. AU - Polverino, Pierpaolo. AU - Andreasen, Søren Juhl. AU - Araya, Samuel Simon. AU - Sahlin, Simon Lennart. AU - Pianese, Cesare. AU - Kær, Søren Knudsen. PY - 2017/8. Y1 - 2017/8. N2 - This work presents a comprehensive mapping of electrochemical impedance measurements under the influence of CO and methanol vapor contamination of the anode gas in a high temperature proton exchange membrane fuel cell, at varying load current. Electrical equivalent circuit model parameters based on experimental evaluation of electrochemical impedance spectroscopy measurements were used to quantify the changes caused by different contamination levels. The changes are generally in good agreement with what is found in the literature. It is shown that an increased level of CO contamination resulted in an increase in the high ...
TY - JOUR. T1 - Optimal design of baffles locations with interdigitated flow channels of a centimeter-scale proton exchange membrane fuel cell. AU - Jang, Jiin Yuh. AU - Cheng, Chin Hsiang. AU - Huang, Yu Xian. PY - 2010/1/1. Y1 - 2010/1/1. N2 - In the present study, the simplified conjugate-gradient method (SCGM) is combined with commercial CFD code to build an optimizer for designing the baffles locations with interdigitated channels of a centimeter-scale proton exchange membrane fuel cell (PEMFC). Using the optimizer, the locations of the baffles are adjusted toward the maximization of the average current density of the flow field. The approach is developed by using the commercial CFD code as the direct problem solver, which is able to provide the numerical solutions for the three-dimensional mass, momentum and species transport equations as well as to predict the electron conduction and proton migration taking place in a PEMFC. Results show that the optimal design process of the locations of ...
Two major types of fuel cells vie for vehicle designers attention: PEM, or proton exchange membrane types, and solid oxide fuels cells (SOFCs). PEMs (also known as polymer electrolyte membrane fuel cells) require an expensive catalyst such as platinum, and hydrogen as fuel. Hydrogen itself is costly to produce and runs up the operating cost for such a fuel cell. Nissan Motor Co., Ltd. timed things to coincide with the 2016 Olympics opening in Rio de Janeiro, Brazil for the introduction of their solid oxide fuel cell vehicle, a van that runs on bio-ethanol electric power. Nissans Carlos Ghosn claims this to be a first, with benefits for potential users. The e-Bio Fuel-Cell offers eco-friendly transportation and creates opportunities for … ...
SOLID OXIDE FUEL CELLS OFFER MANY ADVANTAGES OVER STANDARD POWER PRODUCTION SYSTEMS, INCLUDING FULL CYCLE EFFICIENCIES OF 60%, A WIDE RANGE OF USABLE FUELS, AND ENVIRONMENTALLY SOUND COMBUSTION WITH VERY LOW NOX EMISSIONS. HOWEVER, PROBLEMS SUCH AS COST AND LOW PERFORMANCE MUST BE RESOLVED. THIS PHASE I PROJECT CONCERNS THE DEVELOPMENT A PLANAR, SOLID OXIDE FUEL CELL WITH A UNITIZED BIOPOLAR DESIGN USING LOW RESISTIVITY, THIN, SOLID OXIDE FILMS PRODUCED BY REACTIVE MAGNETRON SPUTTERING. THE CELLS UTILIZE LOW COST FLOW FIELD MATERIALS AND ARE CAPABLE OF OPERATING DIRECTLY ON NATURAL GAS AND AIR AS REACTANTS. THESE FEATURES REDUCE PRODUCTION COSTS AND SYSTEM COMPLEXITY AS WELL AS ALLOW OPERATION AT TEMPERATURES OF ABOUT 700 DEGREES CENTIGRADE. THE PHASE I PROGRAM TESTS TWO DIFFERENT LOW COST FLOW FIELDS: GRAPHITE PAPER AND NICKEL FELT. THE PROGRAM COMPARES PERFORMANCE OF THESE CELLS TO PERFORMANCE DATA OBTAINED UNDER A NATIONAL SCIENCE FOUNDATION (NSF) SOFC GRANT CURRENTLY UNDER WAY. THIS NSF ...
TY - JOUR. T1 - Trends for Methane Oxidation at Solid Oxide Fuel Cell Conditions. AU - Kleis, Jesper. AU - Jones, Glenn. AU - Abild-Pedersen, Frank. AU - Tripkovic, Vladimir. AU - Bligaard, Thomas. AU - Rossmeisl, Jan. N1 - Copyright The Electrochemical Society, Inc. [2009]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).. PY - 2009. Y1 - 2009. N2 - First-principles calculations are used to predict a plausible reaction pathway for the methane oxidation reaction. In turn, this pathway is used to obtain trends in methane oxidation activity at solid oxide fuel cell (SOFC) anode materials. Reaction energetics and barriers for the elementary reaction steps on both the close-packed Ni{111} and stepped Ni{211} surfaces are presented. Quantum-mechanical calculations augmented with thermodynamic corrections allow appropriate treatment of the elevated ...
TY - JOUR. T1 - Doped Perovskite Oxide, PrMnO3, as a New Cathode for Solid‐Oxide Fuel Cells that Decreases the Operating Temperature. AU - Ishiham, Tatsumi. AU - Kudo, Takanari. AU - Matsuda, Hideaki. AU - Takita, Yusaku. PY - 1994/1/1. Y1 - 1994/1/1. N2 - Cathodic overpotentials of Ln0.6Sr0.4MnO3 (Ln is La, Pr, Nd, Sm, Gd, Yb, and Y) were studied for a new cathode for solid‐oxide fuel cells (SOFCs) with low overpotentials in a relatively‐low‐temperature region. Cathodic overpotentials strongly depended on the rare‐earth cations in the A sites of the perovskite oxide. In particular, overpotentials of a Sr‐doped PrMnO3 cathode maintained low values despite decreased operating temperature. Consequently, almost the same power density of a SOFC with Ln0.6Sr0.4MnO3 cathode was obtained at about 100 K lower operating temperature by using Sr‐doped PrMnO3 as the cathode.. AB - Cathodic overpotentials of Ln0.6Sr0.4MnO3 (Ln is La, Pr, Nd, Sm, Gd, Yb, and Y) were studied for a new cathode for ...
The development of intermediate temperatures solid oxide fuel cells (IT-SOFC) with YSZ electrolytes imposes a double requirement in their manufacturing. First, the electrolyte has to be kept as thin as possible to minimize ohmic polarization losses. Second, the cathode compositions used must exhibit an adequate catalytic activity at the operating temperature (600 - 800 ºC). Current methods to manufacture thin YSZ electrolytes require complex processes, and sometimes costly equipment. Cathode compositions traditionally used for high temperature solid oxide fuel cells, such as (La,Sr)MnO3 do not exhibit good catalytic properties at intermediate temperatures. These challenges present areas of opportunity in the development of original manufacturing techniques and new cathode compositions. This study presents a low-cost fabrication procedure for IT-SOFC using tape casting, co-firing and screen printing. The electrochemical performance of the cells is evaluated using a known cathode composition for ...
A solid oxide fuel cell fuel electrode is produced by a sintering process. An underlayer is applied to the electrolyte of a solid oxide fuel cell in the form of a slurry, which is then dried. An overlayer is applied to the underlayer and then dried. The dried underlayer and overlayer are then sintered to form a fuel electrode. Both the underlayer and the overlayer comprise a combination of electrode metal such as nickel, and stabilized zirconia such as yttria-stabilized zirconia, with the overlayer comprising a greater percentage of electrode metal. The use of more stabilized zirconia in the underlayer provides good adhesion to the electrolyte of the fuel cell, while the use of more electrode metal in the overlayer provides good electrical conductivity. The sintered fuel electrode is less expensive to produce compared with conventional electrodes made by electrochemical vapor deposition processes. The sintered electrodes exhibit favorable performance characteristics, including good porosity, adhesion,
Rural Alaska currently uses diesel generator sets to produce much of its power. The high energy content of diesel (i.e. ~140,000 BTU per gallon) makes it the fuel of choice because this reduces the volume of fuel that must be transported, stored, and consumed in generating the power. There is an existing investment in infrastructure for the distribution and use of diesel fuel. Problems do exist, however, in that diesel generators are not very efficient in their use of diesel, maintenance levels can be rather high as systems age, and the environmental issues related to present diesel generators are of concern. The Arctic Energy Technology Development Laboratory at the University of Alaska -- Fairbanks is sponsoring a project to address the issues mentioned above. The project takes two successful systems, a diesel reformer and a tubular solid oxide fuel cell unit, and jointly tests those systems with the objective of producing a for-purpose diesel fueled solid oxide fuel cell system that can be deployed
The Department of Energy (DOE) National Energy Technology Laboratory (NETL) will award up to $15 million for projects to improve the reliability of solid oxide fuel cells (SOFC) (DE-FOA-0001058). The purpose of the FOA is to advance the reliability, robustness and endurance of low-cost solid oxide fuel cell (SOFC) technology...
Can solid oxide fuel cells change transportation? Keep reading to learn about solid oxide fuel cells and how they can change transportation.
Individual homes and entire neighborhoods could be powered with a new, small-scale solid oxide fuel cell system that achieves up to 57 percent efficiency, significantly higher than the 30 to 50 percent efficiencies previously reported for other solid oxide fuel cell systems of its size.
The present teachings relate to solid oxide fuel cell systems featuring a novel design that provides improved thermal management of the system. The solid oxide fuel cell systems disclosed include gas channeling features that regulate the temperature of local areas of the system and protect thermal-sensitive current collection elements.
TY - JOUR. T1 - Pre-oxidized and nitrided stainless steel alloy foil for proton exchange membrane fuel cell bipolar plates. Part 2. T2 - Single-cell fuel cell evaluation of stamped plates. AU - Toops, Todd J.. AU - Brady, Michael P.. AU - Tortorelli, Peter F.. AU - Pihl, Josh A.. AU - Estevez, Francisco. AU - Connors, Daniel. AU - Garzon, Fernando. AU - Rockward, Tommy. AU - Gervasio, Don. AU - Mylan, William. AU - Kosaraju, Sree Harsha. PY - 2010/9/1. Y1 - 2010/9/1. N2 - Thermal (gas) nitridation of stainless steel alloys can yield low interfacial contact resistance (ICR), electrically conductive and corrosion-resistant nitride containing surface layers (Cr2N, CrN, TiN, V2N, VN, etc.) of interest for fuel cells, batteries, and sensors. This paper presents results of proton exchange membrane (PEM) single-cell fuel cell studies of stamped and pre-oxidized/nitrided developmental Fe-20Cr-4V weight percent (wt.%) and commercial type 2205 stainless steel alloy foils. The single-cell fuel cell ...
Fuel cells are a promising technology to deal with energy sustainability, especially for mobility purposes the Proton Exchange Membrane Fuel Cell and hydrogen produced from biomass could be coupled to overcome the amount of CO2 emissions. In order to improve fuel cells performances the search for new electrocatalysts has a great importance in this technology the challenge for a fuel cell catalyst that is less poisoned by CO is one of the most important field in low temperature fuel cell developments that use alcohol and hydrocarbons as primary fuels. In this work PtSm, PtTb, PtDy, PtU, PtRuMo and PtRuDy systems have been synthesized by the colloid method, investigated by the following techniques: X-rays fluorescence analysis (XFA), X-rays powder diffraction (XRD), X-rays photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), cyclic voltammetry (CV) and polarization curves (Exi). The results obtained in this work shows that ...
Proton exchange membrane fuel cells suffer from reversible performance loss during operation caused by the oxidation of the Pt catalyst which in turn reduces the electrochemically active surface area. Many fuel cell manufacturers recommend using short circuiting during the operation of the fuel cell to improve the performance of the cells over time. However, there is lack of understanding on how it improves the performance as well as on how to optimise the short circuiting strategy for different fuel cell systems. We present a simple procedure to develop an optimised short circuiting strategy by maximising the cumulative average power density gain and minimising the time required to recover the energy loss during short circuiting. We obtained average voltage improvement from 10 to 12% at different current densities for a commercial H-100 system and our short circuiting strategy showed ∼2% voltage improvement in comparison to a commercial strategy. We also demonstrated that the minimum short ...
Proton Exchange Membrane Fuel Cell (PEMFC) uses hydrogen and oxygen for fuel, the whole energy conversion process almost has no negative impact on the environment. The PEM fuel cell stack with the advantages of low-operating temperature, high current density and fast start-up ability is considered to be the next generation of new electric vehicle power. However, due to the limited current output, it is difficult for a single cell to meet the practical application requirements. The actual fuel cell stack is formed by many single cells assembled together. The assembly process is often related to load transfer, material transfer, energy exchange, multi-phase flow, electrochemical reaction and other factors. The performance of MEA (Membrane Electrode Assembly), sealing gaskets and other components will change during the assembly process, which makes the fuel cell stack assembly process more complex. The assembly load of large stack and the inside interface pressure homogeneity significantly affect ...
This paper deals with the state-of-the-art of air management in proton exchange membrane fuel cell (PEMFC), which is a challenge because commercial compressors and humidification systems are not suitable for automotive applications. Major tasks and requirements for compression and humidification subsystems have been introduced, showing that compression and humidification subsystems cannot be decoupled. A higher working pressure around 2.5 bar is recommended because it permits the PEMFC to have a higher efficiency, as well as a lighter stack and a lower volume than an equivalent PEMFC working at a lower pressure; moreover, the water necessary for humidifying the membrane decreases, resulting in a simple management. For high pressure fuel cells, centrifugal compressors or positive displacement compressors with internal compression have to be preferred than those with external compression because they offer a better efficiency. The built-in compression ratio has to be as close as possible to the ...
TY - JOUR. T1 - ZIF derived PtNiCo/NC cathode catalyst for proton exchange membrane fuel cell. AU - Hanif, Saadia. AU - Shi, Xuan. AU - Iqbal, Naseem. AU - Noor, Tayyaba. AU - Anwar, Rehan. AU - Kannan, A. M.. PY - 2019/12/5. Y1 - 2019/12/5. N2 - High performance cathode catalysts with minimum platinum amount for the electrocatalyzed oxygen reduction reaction (ORR) in PEMFCs remain as a significant challenge for commercial application. Zeolitic Imidazolate Framework (ZIF) based catalyst can provide void 3D framework of N-doped nano-porous carbon for promising ORR activity. Here we report a bimetallic pyrolyzed NiCo-ZIF supported fine Pt/Pt alloy electrocatalyst for ORR. After pyrolysis, nano-porous carbon is obtained with well dispersed Pt/Pt alloy nanoparticles (˜ 3 nm). This catalyst shows superior performance and stability in acidic medium against the commercial catalyst comprising of Pt/C. In a single cell PEMFC, high peak power density value of 1067 mW. cm−2 is attained at 70 °C by ...
The Report Global PEMFC (Proton Exchange Membrane Fuel Cells) Market 2015-2019 provides information on pricing, market analysis, shares, forecast, and company profiles for key industry participants. - MarketResearchReports.biz. About PEMFC. PEMFC are devices that generate electricity through an electrochemical process involving oxidation of electrolytes placed between the anode and the cathode. Fuel cells are generally categorized based on the type of electrolyte used. PEMFC use an acidic water-based polymer membrane with platinum-based electrodes. It operates at low temperatures and caters effectively to dynamic power requirements. The chemical source of PEMFC, which is hydrogen, needs to be extremely pure because of its operating temperature and use of precious metal-based electrodes. PEMFC is a fuel-cell technology that is used extensively in light duty and material handling vehicles.. View Full Report at http://www.marketresearchreports.biz/analysis/280607. Technavios analysts forecast the ...
The Report Global PEMFC (Proton Exchange Membrane Fuel Cells) Market 2015-2019 provides information on pricing, market analysis, shares, forecast, and company profiles for key industry participants. - MarketResearchReports.biz About PEMFC PEMFC are devices that generate electricity through an electrochemical process involving oxidation of electrolytes placed between the anode and the cathode. Fuel cells are generally categorized based on the type of electrolyte used. PEMFC use an acidic water-based polymer membrane with platinum-based electrodes. It operates at low temperatures and caters effectively to dynamic power requirements. The chemical source of PEMFC,…. Read More ...
In this article, one-phase and three dimensional computational fluid dynamics analysis was utilized to investigate the effect of annular field pattern of proton exchange membrane fuel cells (PEMFC) with different geometry on the performances and species distribution. This computational fluid dynamics code is used for solving the equation in single domain namely the flow field, the mass conservation, the energy conservation, the species transport, and the electric/ionic fields under the assumptions of steady state and non-isothermal. The introduced cell consist of different novelties, such as the way in which reactant gases are supplied to the flow field, the design of the flow field geometry for both anode and cathode and the membrane electrode assembly design and the length and occupied volume decreases up to 40%. Obtained results showed that generation of fuel cells with annular shaped geometry with the same active area and inlet area gave intensively higher current density compared with conventional
Gas diffusion electrodes (GDEs) prepared by a novel automatic catalyst spraying under irradiation (ACSUI) technique are investigated for improving the performance of phosphoric acid (PA)-doped polybenzimidazole (PBI) high temperature proton exchange membrane fuel cell (PEMFC). The physical properties of the GDEs are characterized by pore size distribution and scanning electron microscopy (SEM). The electrochemical properties of the membrane electrode assembly (MEA) with the GDEs are evaluated and analyzed by polarization curve, cyclic voltammetry (CV) and electrochemistry impedance spectroscopy (EIS). Effects of PTFE binder content, PA impregnation and heat treatment on the GDEs are investigated to determine the optimum performance of the single cell. At ambient pressure and 160 o C, the maximum power density can reach 0.61 W cm-2, and the current density at 0.6 V is up to 0.38 A cm-2, with H /air and a platinum loading of 0.5 mg cm-2 on both electrodes. The MEA with the GDEs shows good ...
Publishers Accepted Manuscript: Study of acetylene poisoning of Pt cathode on proton exchange membrane fuel cell spatial performance using a segmented cell system ...
Sustained potential oscillations are experimentally observed in a proton exchange membrane fuel cell with PtRu as anode catalyst and with H2/108ppm CO as the anode feed when operating under a constant current density mode. These oscillations appear at fuel-cell temperatures below 70°C. A threshold value exists for both the current density and the anode flow rate at a given fuel-cell temperature for their onset. The temperature dependence of the oscillation period shows an apparent activation energy around 60 kJ/mol. The potential oscillations are believed to be due to the coupling of anode electro-oxidation of H2 and CO on the PtRu catalyst surface, on which OHad is formed more readily, i.e., at lower overpotentials. A simple kinetic model is provided that can reproduce the observed oscillatory phenomenon both qualitatively and quantitatively.
Proton Exchange Membrane Fuel Cells (PEMFC) are promising energy converters, but still suffer from a short life duration. Applying Prognostics and Health M
This work highlights the gains of an innovative model-based control approach applied to a proton exchange membrane fuel cell (PEMFC) system, included in a stand-alone hybrid generator. This approach proposes a multivariable setpoint tracking of the PEMFC output power and temperature. The freshness of this approach is based on the combination of a nonlinear model-based predictive control strategy (NMPC) and a global linearizing control (GLC) algorithm. The performance of the proposed control strategy is confirmed thanks to simulations of varying control scenarios. Results show good performance in setpoint tracking, disturbances rejection and robustness against plant/model mismatch in presence of noisy signals. Moreover, for similar setpoint point tracking accuracy, the proposed control strategy appears to be four times faster than a classical multivariable NMPC strategy. According to real-time application objectives, this control strategy appears as a promising option to be implanted in the overall
Changes that carbon-supported platinum electrocatalysts undergo in a proton exchange membrane fuel cell environment were simulated by ex situ heat treatment of catalyst powder samples at 150 C and 100% relative humidity. In order to study modifications that are introduced to chemistry, morphology, and performance of electrocatalysts, XPS, HREELS and three-electrode rotating disk electrode experiments were performed. Before heat treatment, graphitic content varied by 20% among samples with different types of carbon supports, with distinct differences between bulk and surface compositions within each sample. Following the aging protocol, the bulk and surface chemistry of the samples were similar, with graphite content increasing or remaining constant and Pt-carbide decreasing for all samples. From the correlation of changes in chemical composition and losses in performance of the electrocatalysts, we conclude that relative distribution of Pt particles on graphitic and amorphous carbon is as important for
The Global Proton Exchange Membrane Fuel Cells Industry 2015 Market Research Report is a professional - Market Research Reports and Industry Analysis
Electrochemical properties of the Pr2-xLaxCuO4 (x = 0.05; 0.1; 0.3) (PLCO) oxides in oxygen reduction reaction (ORR) were examined towards their applicability as cathode materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs). Pr1.95La0.05CuO4 (PLCO0.05) was defined as a favorable basis for the composite cathode material due to its conducting, thermomechanical
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Yang, C., Yang, Z., Jin, C., Xiao, G., Chen, F. and Han, M. (2012), Sulfur-Tolerant Redox-Reversible Anode Material for Direct Hydrocarbon Solid Oxide Fuel Cells. Adv. Mater., 24: 1439-1443. doi: 10.1002/adma.201104852 ...
TY - JOUR. T1 - Experimental analysis of a dimensionless number in the cathode channels of a polymer electrolyte membrane fuel cell with different head losses. AU - Han, S. H.. AU - Kim, K. R.. AU - Ahn, D. K.. AU - Choi, Y. D.. PY - 2010/1/1. Y1 - 2010/1/1. N2 - This study investigates the effects of stoichiometry, humidity, cell temperature, and pressure on the performance and the flooding of the proton exchange membrane fuel cell. Values of stoichiometry are 1.5, 2.0, and 2.5 at cell temperatures of 50, 55, and 60°C, respectively. This study shows that the dimensionless flooding value (FV) is a function of the stoichiometry, humidity, temperature, and pressure. The FV is calculated by using the measured values of temperature, humidity, pressure, and flowrate of the cathode. The effect of the dimensionless number on the flooding of the cathode in the proton exchange membrane fuel cell is analysed in this study. The effects of air stoichiometry, cell temperature, and air humidity are also ...
Headline: Bitcoin & Blockchain Searches Exceed Trump! Blockchain Stocks Are Next!. Lithium-Ion Battery Cathode Material Industry Report is a tool to assist novice as well as seeded players in gaining astute business intelligence and make apt decisions based on it.. This Lithium-Ion Battery Cathode Material Industry report also takes into account the past price of and future price as per the supply-demand relation along with perspectives and Lithium-Ion Battery Cathode Material Industry forecasts. Additionally, the Lithium-Ion Battery Cathode Material Industry report also discusses the data on deals (distributors) and buyers, providing a holistic insight into the supply chain and sales details of Lithium-Ion Battery Cathode Material Industry.. Major Key Players are Analyzed in the Lithium-Ion Battery Cathode Material Industry Report such as:. · Hunan Shanshan Advanced Materials. · Hunan Reshine New Material. · Pulead Technology Industry. · Beijing Easpring Material Technology. · Tianjin B&M ...
Solid oxide fuel cells (SOFCs) with proton conducting electrolyte (H-SOFCs) are promising power sources for stationary applications. Compared with other types of fuel cells, one distinct feature of SOFC is their fuel flexibility. In this study, a 2D model is developed to investigate the transport and reaction in an H-SOFC fueled with syngas, which can be produced from conventional natural gas or renewable biomass. The model fully considers the fluid flow, mass transfer, heat transfer and reactions in the H-SOFC. Parametric studies are conducted to examine the physical and chemical processes in H-SOFC with a focus on how the operating parameters affect the H-SOFC performance. It is found that the presence of CO dilutes the concentration of H2, thus decreasing the H-SOFC performance. With typical syngas fuel, adding H2O cannot enhance the performance of the H-SOFC, although water gas shift reaction can facilitate H2 production.
Marquez, A., Ohrn, T., Trembly, J., Ingram, D., & Bayless, D. (2007). Effects of coal syngas and H2S on the performance of solid oxide fuel cells. Part 2: stack tests. Journal of Power Sources, 164(2), 659 - 667 ...
Topsoe Fuel Cell is expanding its solid oxide fuel cell (SOFC) stack production facilities in Denmark. The company needs the extra production capacity because it expects demand to exceed its current capacity in 2013.
A nanocomposite Zr/Sm-codoped ceria electrolyte coated with K2CO3/Na2CO3 was synthesized by a coprecipitation method. The electrochemical study of the two-phase nanocomposite electrolytes with carbonate coated on the doped ceria shows high oxygen ion mobility at low temperatures (300-600 degrees C). The interface between the two constituent phases was studied by electrochemical impedance spectroscopy. Ionic conductivities were also measured with electrochemical impedance spectroscopy. The morphology and structure of composite electrolyte were characterized using field-emission scanning electron microscopy and X-ray diffraction. The fuel cell power density is 700 mW cm(-2), and an open-circuit voltage of 1.00 V is achieved at low temperatures (400-550 degrees C). This codoped approach with a second phase provides a good indication regarding overcoming the challenges of solid oxide fuel cell technology.. ...
A solid oxide fuel cell comprises a plurality of tubes, each having an anode, electrolyte and cathode. Anode and cathode current collectors are mounted on the tubes. The anode current collector electrically connects to the anode and can have a contact with the anode. The cathode current collector electrically connects to the cathode and can have a contact with the cathode. An electrically conductive sealant may be positioned between the anode of one tube and the cathode current collector of another tube.
Reversible operation of a microtubular solid oxide fuel cell SOFC with high electrochemical efficiency is reported. These devices can ideally produce hydrogen from electricity and steam solid oxide electrolyser SOE and then use the stored hydrogen to generate electricity and heat SOFC, acting as a storage device for the electrical energy. A fuel-electrode-supported Ni-yttriastabilized zirconia YSZ/YSZ/La0.8Sr0.2 0.98MnO3 cell, 2.4 mm in diameter and 20m of electrolyte thickness, was evaluated in an electrolysis mode as a function of the steam concentration supplied to the Ni/YSZ electrode. A good cell performance was obtained at temperatures as high as 950°C for the electrolysis operation. At 850°C, the cell withstood current densities of −1 A/cm2 at 1.3 V with steam utilization of 16.5%. The production of hydrogen in the electrolyzer was tested by mass spectrometry. Their performance, especially in the SOE mode, is very promising for high temperature electrolysis applications. ...
An object of the present invention is to provide a dye-sensitized solar cell comprising a solid electrolyte and having excellent thermostability, which has the excellent feature of retaining liquid so as to prevent an electrolyte solution from being exuded even under high temperature or pressurized conditions, and a dye-sensitized solar cell module using the same. Such dye-sensitized solar cell comprises: an electrode base material 10; a porous semiconductor layer 20 formed on the electrode base material 10 having a porous surface carrying a sensitized dye; a counter electrode 40, which is disposed so as to face the porous semiconductor layer 20; and an electrolyte layer 30 comprising a redox pair and cationic cellulose or a derivative thereof, which is formed between the electrode base material 10 and the counter electrode 40.
Traditionally, Pt prepared by hydrolysis was used as the counter electrode of dye-sensitized solar cells. But the hydrolysis requires a high-temperature process, so that it is not suitable for flexible substrates like plastics. In addition, noble Pt remarkably increases the cost of dye-sensitized solar cells. Here, we report three types of nanostuctured materials as the counter electrode of dye-sensitized solar cells, including nanostrutured Pt by polyol reduction of Pt precursors, nanocomposites and nanotube films.
TY - JOUR. T1 - Liquid electrolyte based on lithium bis-fluorosulfonyl imide salt. T2 - Aluminum corrosion studies and lithium ion battery investigations. AU - Abouimrane, Ali. AU - Ding, J.. AU - Davidson, I. J.. PY - 2009/4/1. Y1 - 2009/4/1. N2 - The performance of a liquid electrolyte composed of lithium bis-fluorosulfonyl imide (LiSFI) in a 1:1 volume of ethylene carbonate and dimethyl carbonate is evaluated for use in lithium ion batteries. Imide salts offer the benefits of higher thermal stability and could provide a safer alternative to LiPF6 which is prone to the formation of HF. However, the most studied lithium imide salt, lithium bis(trifluoromethanesulfonyl) imide, is well known to have a problem with corrosion of aluminum which is commonly used as the cathode current collector. Consequently, the corrosion properties of liquid electrolytes based on lithium bis-fluorosulfonyl imide are also investigated. Crown. AB - The performance of a liquid electrolyte composed of lithium ...
The dye-sensitized solar cell, developed in the 1990s, is a non-conventional solar technology that has attracted much attention owing to its stability, low cost, and device efficiency. Power-conversion efficiencies of over 11 % have been achieved for devices that contain liquid electrolytes, whereas solid-state devices that do not require a liquid electrolyte display an overall efficiency of 5 %. Improvement of the efficiency of solid-state dye-sensitized solar cells requires optimization of their various components, such as the hole-transport material, sensitizer, mesoporous TiO2 film, and the blocking layer. This Minireview highlights the current state of the art and future directions of solid-state dye-sensitized solar cell technology. ...
Dye-sensitized solar cells based on iodide/triiodide (I−/I3−) electrolytes are viable low-cost alternatives to conventional silicon solar cells. However, as well as providing record efficiencies of up to 12.0%, the use of I−/I3− in such solar cells also brings about certain limitations that stem from its corrosive nature and complex two-electron redox chemistry. Alternative redox mediators have been investigated, but these generally fall well short of matching the performance of conventional I−/I3− electrolytes. Here, we report energy conversion efficiencies of 7.5% (simulated sunlight, AM1.5, 1,000 W m−2) for dye-sensitized solar cells combining the archetypal ferrocene/ferrocenium (Fc/Fc+) single-electron redox couple with a novel metal-free organic donor-acceptor sensitizer (Carbz-PAHTDTT). These Fc/Fc+-based devices exceed the efficiency achieved for devices prepared using I−/I3− electrolytes under comparable conditions, revealing the great potential of ferrocene-based electrolytes
Poly (3,4-ethylenedioxythiophene) (PEDOT) nanoporous layers were prepared with electro-oxidative polymerization using room temperature hydrophobic ionic liquids as a medium. The synthesized highly porous PEDOT films exhibit room temperature conductivity value of 195 S cm(-1) along with reproducible high cycling life. These films were used as counter electrodes in dye-sensitized solar cells yielding similar to 8% power conversion efficiency, which is close to the classical platinum coated counter electrode (8.7%). The photovoltaic performance increases as we lower the PEDOT film thickness as the thin films has reasonably high catalytic properties. Ahmad, Shahzada; Yum, Jun-Ho; Zhang, Xianxi; Graetzel, Michael; Butt, Hans-Juergen; Nazeeruddin, Mohammad K.
TY - JOUR. T1 - Polymer electrolytes based on grafted inorganic nanoparticles for dye-sensitized solar cells. AU - Park, Jung Tae. AU - Roh, Dong Kyu. AU - Ahn, Sung Hoon. AU - Kim, Jong Hak. PY - 2011/2. Y1 - 2011/2. N2 - Inorganic nanoparticles such as TiO 2 and SiO 2 were grafted with poly(oxyethylene methacrylate) (POEM) and blended with poly(ethylene glycol) (PEG), 1-methyl-3-propylimidazolium iodide (MPII) and iodine (I 2O) to prepare polymer electrolytes for dye-sensitized solar cells (DSSC). The effects of the grafted nanoparticles on the coordination interactions and structures of electrolytes were investigated using FT-IR spectroscopy and differential scanning calorimetry (DSC). The energy conversion efficiencies were obtained as 3.3 and 2.9% for TiO 2 and SiO 2 based electrolytes, respectively. Good interfacial contact between the electrolyte and the electrodes was also confirmed by field emission scanning electron microscopy (FE-SEM).. AB - Inorganic nanoparticles such as TiO 2 and ...
Panchromatic response is essential to increase the light-harvesting efficiency in solar conversion systems. Herein we show increased light harvesting from using multiple energy relay dyes inside dye-sensitized solar cells. Additional photoresponse from 400-590 nm matching the optical window of the zinc phthalocyanine sensitizer was observed due to Forster resonance energy transfer (FRET) from the two energy relay dyes to the sensitizing dye. The complementary absorption spectra of the energy relay dyes and high excitation transfer efficiencies result in a 35% increase in photovoltaic performance.. Keywords: dyes/pigments ; dye-sensitized solar cells ; Fret ; photochemistry ; photovoltaics ; Restricted Geometries ; Rhodamine-B ; Efficiency ; Dcm. ...
For the first time, nonstoichiometric WO2.72 was used as a counter electrode (CE) in dye-sensitized solar cells (DSSCs). Oxygen-vacancy-rich WO2.72 nanorod bundles with notable catalytic activity for triiodide and thiolate reduction were prepared in this study. The photovoltaic parameters of dye-sensitized s
A detailed study of the D (a divinyl kenzene polymer substituted with sulfonic acid) and R (D membrane where a teflon polymer is substituted for the divinylbenzene) type ion exchange membranes for manpack fuel cells is presented. The critical current-voltage characteristics of both R and D type of ion exchange membrane electrolyte systems are examined for their capability of meeting the requirements for Army field use. Evaluation of the experimental results shows two main causes for fuel cell break down: (1) the presence of tetra hydrofuran in the fuel causing poisoning of the anode catalyst and eventual cell decay, and (2) ion exchange membrane dry-out due to low current loading and extended periods on open circuit voltage. (Author)(*FUEL CELLS
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In this review, we dissect nanotube growth under a systematic changing of electrode configurations and analyze relevant solar cell constructions as well as performances, in an attempt to explore efficient approaches to harvest solar energy. It is divided into two parts for discussion: planar and nonplanar electrodes, as a conformal coating of anodic nanotubes can be formed on an electrode regardless of its geometric shape. The first part is presented in this paper. To date, the most efficient dye-sensitized solar cells (DSCs) based on anodic nanotubes exhibit a power conversion efficiency of 7~8%, whereas those based on nanoparticles show a higher efficiency of 11~12%. This is due to a lower surface area per photoanode volume for nanotubes with respect to nanoparticles. It is calculated that, for a given photoanode volume, it requires the nanotube diameter to go down to ~30 nm to generate a comparable surface area with nanoparticles of ~20 nm. For single-sided tube growth, three dominant ...
Nowadays PEMFC with hydrogen fuel has developed to commercialize to replace the conventional machine. Several limitations in PEMFC commercialization are its low efficiency, viability of hydrogen fuel supply and problem of controlling fuel and water as reaction products. Effective effort to increase efficiency and water management include elevating temperature of PEMFC operation near water boiling point to increase energy produced, prevent water flooding, enhanced cooling efficiency and also the possibility to use hydrogen and air under lower humidity in order to make simples PEMFC design. But at elevated temperature and low relative humidity, Nafion membrane that during the time still used as electrolyte will shrink and at high humidity and high temperature above 80oC membrane will swell and irreversibility decay occur. Membrane shrinking and swelling will reduce PEMFC performance. The objective of this study is to investigate the usage of Nafion-SiO2-PWA nanocomposite membrane NS10W, NS15W and ...
TY - JOUR. T1 - Dye stability and performances of Dye-sensitized solar cells with different nitrogen additives at elevated temperatures - Can sterically hindered pyridines prevent dye degradation?. AU - Phuong, Nguyen Tuyet. AU - Andersen, Anders Rand. AU - Skou, Eivind Morten. AU - Lund, Torben. PY - 2010/4/23. Y1 - 2010/4/23. U2 - 10.1016/j.solmat.2010.04.076. DO - 10.1016/j.solmat.2010.04.076. M3 - Journal article. VL - 94. SP - 1582. EP - 1590. JO - Solar Energy Materials & Solar Cells. JF - Solar Energy Materials & Solar Cells. SN - 0927-0248. IS - 10. ER - ...
Dye-sensitized solar cells (DSSCs) are super thin, cheap solar cells that can operate indoors. Created by G24 Innovations, the first batch of the new solar cells have found a home in fashion, heading to Hong Kong-based consumer
By coating electrodes made of silicon with a conducting polymer hydrogel, researchers developed a new technique to significantly improve the charge storage capacity of lithium-ion batteries.. Stanford University scientists have dramatically improved the performance of lithium-ion batteries by creating novel electrodes made of silicon and conducting polymer hydrogel, a spongy substance similar to the material used in soft contact lenses and other household products.. Writing in the June 4 edition of the journal Nature Communications, the scientists describe a new technique for producing low-cost, silicon-based batteries with potential applications for a wide range of electrical devices.. Developing rechargeable lithium-ion batteries with high energy density and long cycle life is of critical importance to address the ever-increasing energy storage needs for portable electronics, electric vehicles and other technologies, said study co-author Zhenan Bao, professor of chemical engineering at ...
Dye-sensitized solar cells (DSCs) are promising to be the next-generation solar cells arising from their high light-to-electricity conversion efficiency and low fabrication cost.
High Pt loading on functionalized multiwall carbon nanotubes as a highly efficient cathode electrocatalyst for proton exchange membrane fuel cells
A photogated transistor is established based on the dye-sensitized solar cell using nanocrystalline TiO2 films. Voltage-current curves are characterized with three types of transport behaviors: linear increase, saturated plateau, and breakdownlike increase, which are actually of the typical performances for a phototransistor. Moreover, an asymmetric behavior is observed in the voltage-current loops, which is believed to be due to the difference in the effective photoconducting areas rather than the cross-section areas. The photovoltaic voltage between the common counter electrode and drain (VCE-D) is examined as well during the loop measurements, clarifying that the predominant dark process in source and the predominant photovoltaic process in drain are series connected, modifying the electric potential levels, and thus resulting in the characteristic phototransistor behaviors ...
Compared to traditional silicon based solar cells, dye-sensitized solar cells, or Graetzel cells, have significantly lower production costs, even though the former still show higher efficiency.
Nanoporous, p-type NiO films were sensitized with coumarin 343 (C343), and the photoinduced electron transfer dynamics was studied in the presence of different concentrations of electrolyte (I-3(-)/I- in propylene carbonate). Electron transfer from the valence band of NiO to the excited C343 is very fast, occurring on time scales from hundreds of femtoseconds to a few picoseconds, but also the subsequent recombination is quite rapid, on the time scale of tens of picoseconds. Nevertheless, formation of an intermediate, attributed to I2-I NiO(+), was observed on the picosecond time scale. Simultaneously the reduced dye was converted back to the C343 ground state, indicating that recombination could be intercepted by 13 reduction. Consistent with that interpretation, we observed oxidized NiO and depletion Of 13 persisting on the millisecond time scale. Complete dye-sensitized solar cells (DSSCs) with these films as photocathode gave up to 10-11% incident photon to current conversion efficiency at ...
Natural-chlorophyll-related porphyrins, including (2H, Zn, Cu)-protoporphyrin IX (Por-1) and Zn-mesoporphyrin IX (Por-2), and chlorins, including chlorin e6 (Chl-1), chlorin e4 (Chl-2), and rhodin G7 (Chl-3), have been used in dye-sensitized solar cells (DSSCs). For porphyrin sensitizers that have vinyl groups at the β-positions, zinc coordinated Por-1 gives the highest solar-energy-to-electricity conversion efficiency (h) of up to 2.9%. Replacing the vinyl groups of ZnPor-1 with ethyl groups increases the open-circuit voltage (Voc) from 0.61 V to 0.66 V, but decreases the short-circuit current (Jsc) from 7.0 mA·cm−2 to 6.1 mA·cm−2 and the value of h to 2.8%. Density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations suggest that the higher Jsc values of Zn-based porphyrin sensitizers result from the favorable electron injection from the LUMO at higher energy levels. In the case of the chlorin sensitizers, the number of carboxyl protons has a large effect on the photovoltaic
New hemicyanine dyes (CM101, CM102, CM103, and CM104) in which tetrahydroquinoline derivatives are used as electron donors and N-(carboxymethyl)-pyridinium is used as an electron acceptor and anchoring group were designed and synthesized for dye-sensitized solar cells (DSSCs). Compared with corresponding dyes that have cyanoacetic acid as the acceptor, N-(carboxymethyl)-pyridinium has a stronger electron-withdrawing ability, which causes the absorption maximum of dyes to be redshifted. The photovoltaic performance of the DSSCs based on dyes CM101CM104 markedly depends on the molecular structures of the dyes in terms of the n-hexyl chains and methoxyl. The device sensitized by dye CM104 achieved the best conversion efficiency of 7.0?% (Jsc=13.4 mA?cm-2, Voc=704 mV, FF=74.8?%) under AM 1.5 irradiation (100 mW?cm-2). In contrast, the device sensitized by reference dye CMR104 with the same donor but the cyanoacetic acid as the acceptor gave an efficiency of 3.4?% (Jsc=6.2 mA?cm-2, Voc=730 mV, ...
Konarka Technologies, Inc. (KTI), a developer of flexible, polymer and nanoparticle-based photovoltaic (PV) technology, has been granted licensee rights to dye-sensitized solar cell technology from the Swiss Federal Institute of Technology (EPFL).
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Maximizing Solar Energy Absorption in DSSC. Through the following key select activities, students will learn to fabricate an artificial photosynthetic device using nanotechnology and plant pigments to capture suns energy and convert it to electricity. Each Activity prepares students for the Design Project, in which they are challenged to create the most efficient dye-sensitized solar cell, using vegetable and/or fruit dyes, that is capable of powering an electronic device.. MWM will give students an opportunity to understand the world around them in a way they have never experienced before. The modules promote an awareness of the roles science and technology play in society and guide students to take increased control of their work.. ...
Dye-sensitized solar cells (DSSCs) have been intensely researched for more than two decades. Electrolyte formulations are one of the bottlenecks to their successful commercialization, since these result in trade-offs between the photovoltaic performance and long-term performance stability. The corrosive nature of the redox shuttles in the electrolytes is an additional limitation for industrial-scale production of DSSCs, especially with low cost metallic electrodes. Numerous electrolyte formulations have been developed and tested in various DSSC configurations to address the aforementioned challenges. Here, we comprehensively review the progress on the development and application of electrolytes for DSSCs. We particularly focus on the improvements that have been made in different types of electrolytes, which result in enhanced photovoltaic performance and long-term device stability of DSSCs. Several recently introduced electrolyte materials are reviewed, and the role of electrolytes in different ...
Inverse opal (IO) films with mesoporous structures hold promise as high-performance electrodes for various photoelectrochemical devices because of their high specific area as well as their fully connected pore structure. A great challenge to their use is obtaining an intact film of mesoscale colloidal crystals as a template. Here, using the plate-sliding coating method coupled with hot air flow, we successfully deposited mesoscale colloidal crystals onto the substrate. A TiO2 mesoscale IO (meso-IO) with 70 nm pores was then successfully fabricated via atomic layer deposition of TiO2 and subsequent removal of the template. As a photoelectrochemical electrode, the meso-IO structure exhibits enhanced charge transport properties as well as a high specific area. Moreover, dye-sensitized solar cells fabricated using the meso-IO electrode exhibit a higher photocurrent and cell efficiency than a cell constructed using a conventional TiO2 nanoparticle electrode. This meso-IO film provides a new platform for
Herein, we report the impact of single- and co-doping of nanoparticle TiO2 films with carbon and nitrogen on the photovoltaic characteristics of their corresponding dye-sensitized solar cell (DSC) devices. Different DSCs with various compositions of the photoanode electrodes are fabricated to study their str
Daeneke, T., Uemura, Y., Duffy, N. W., Mozer, A. J., Koumura, N., Bach, U. & Spiccia, L. (2012). Aqueous dye-sensitized solar cell electrolytes based on the ferricyanide-ferrocyanide redox couple. Advanced Materials, 24 (9), 1222-1225 ...
TY - JOUR. T1 - Design and characterization of highly efficient porphyrin sensitizers for green see-through dye-sensitized solar cells. AU - Lu, Hsueh Pei. AU - Mai, Chi Lun. AU - Tsia, Chen Yuan. AU - Hsu, Shun Ju. AU - Hsieh, Chou Pou. AU - Chiu, Chien Lan. AU - Yeh, Chen Yu. AU - Diau, Wei-Guang. PY - 2009/11/19. Y1 - 2009/11/19. N2 - YD12 (η = 6.7%) is a green sensitizer remarkable for its outstanding cell performance beyond that of N719 (η = 6.1%) with no added scattering layer; the additional scattering layer assists N719 in promoting the efficiency in the red shoulder of the spectrum, but has only a small effect on the improvement of the cell performance for porphyrins.. AB - YD12 (η = 6.7%) is a green sensitizer remarkable for its outstanding cell performance beyond that of N719 (η = 6.1%) with no added scattering layer; the additional scattering layer assists N719 in promoting the efficiency in the red shoulder of the spectrum, but has only a small effect on the improvement of the ...
We present an investigation into incorporating core-shell Au-SiO(2) nanoparticles into dye-sensitized solar cells. We demonstrate plasmon-enhanced light absorption, photocurrent, and efficiency for both iodide/triiodide electrolyte based and solid-st
Three new sensitizers 2-{4-[2-(4-Nitrobenzylidene)hydrazino)]phenyl} ethylene-1,1,2-tricarbonitrile (NBHPET), 2-{4-[2-p-Chlorobenzylidenehydrazino] phenyl}- ethylene-1,1,2-tri carbonitrile (CBHPET) and 2-{4-[2-p- Bromobenzylidenehydrazino] phenyl}ethylene-1,1,2-tricarbonitrile (BBHPET) have been synthesized. The dyes showed pronounced solvatochromic effects as the polarity of the solvents increased. The structures have been optimized at B3LYP/6-31G(d) level of theory. The torsion in E-isomer is smaller than Z-isomer and azo isomers. The highest occupied molecular orbitals are delocalized on whole molecule while lowest unoccupied molecular orbitals are distributed on the tricarbonitrile. The lowest unoccupied molecular orbital energies are above the conduction band of titanium dioxide, highest occupied molecular orbitals of the dyes are below the redox couple of new synthesized dyes and small energy gap revealed these dyes would be better sensitizers for dye-sensitized solar cells. © 2012 ...
The Global Dye-sensitized Solar Cells (DSSC) Industry 2017 Market Research Report is a professional and in-depth study on the current state of the...
Read A new study on solid-state cyanine dye-sensitized solar cells, Research on Chemical Intermediates on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Page contains details about dye-sensitized solar cells . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Page contains details about dye-sensitized solar cell . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
What do you research and why?. My research concentrates on renewable energy systems. The focus is on the development of catalytic reactors and processes. In recent years I have led research projects on photo catalytic water splitting, lignin de-polymerization, solid oxide fuel cell with non-hydrogen fuels, direct carbon fuel cell, selective catalytic reduction of NOx with ammonia, hydrogen production with membrane reactors and non-aqueous flow batteries.. My research group at the Department of Chemical and Metallurgical Engineering focuses on renewable energy resources, such as biomass and solar energy, as we know that the fossil energy resources are limited and the overconsumption of the fossil resources creates great environmental challenges. Renewable energy will not run out. Developing the renewable energy processes is crucial both for ourselves and the generations to follow.. What brought you into the field of research?. When I was young, China was very poor, and I thought that research on ...
Electric power supply[edit]. Several power stations were built to generate electricity in the centre of London, including the ... A unique element of the London power grid is that it was the first urban high voltage direct current transmission system in the ... The Thames Water Ring Main supplies much of London with water. Sewage disposal was historically a problem, causing major ... famous power stations at Bankside and Battersea (both now disused). Bankside power station has now been converted into Tate ...
Lee, R.G.; Garland-Collins, T.K.; D.E. Johnson; E. Archer; C. Sparkes; G.M. Moss; A.W.Mowat (1988). "Electrical Power Supplies ... each supplying power to one of two spark plugs in each cylinder. Magnetos were used for specialized isolated power systems such ... Both dynamos and alternators required a source of power to drive their field coils. This could not be supplied by their own ... Only in a few specialised cases have they been used for power generation. Production of electric current from a moving magnetic ...
This is one of the simplest and lightest electrical power supplies available for a missile. Bleeding exhaust gas from the motor ... Guided missiles require a source of electrical power during flight. This is needed to power the guidance and fuzing systems, ... "Electrical Power Supplies". Guided Weapons. Land Warfare: Brassey's New Battlefield Weapons Systems & Technology Series. 1. ... Although the power requirement for the missile may be a largely DC supply, the AC alternator and its need for a rectifier is ...
Nowadays the Institute comprises five departments: Department of Power Supply and Electrical Engineering; Department of ... Electrical Power Engineering, Electronics and Microelectronics, Electrical Equipment and Electrical Industry, Electrical ... Electromagnetic compatibility of semi-conducting converters and other electrical installations; Power supply sources; Lamps ... The Institute of Electrical and Power Engineering offers undergraduate, graduate and postgraduate programs in such popular ...
"Søkablet til Bornholm spules ned i havbunden". Energy Supply. Sep 4, 2018. Electric power infrastructure on Bornholm. ... There is also a project using energy stored in electric vehicles as a backup supply for a period of hours. In 2018 the cable ... The Bornholm Cable is a submarine power cable under the Baltic Sea, connecting the power grid of the Danish island of Bornholm ... Reserve generating capacity for when the cable is out of service is provided by coal power plants on Bornholm and by diesel ...
Strategic Information Technology, computer and communications equipment and supplies: 160 employees. *K-Line Group, electrical ... key sources are coal-burning power-plants and vehicle engines. On episode days (O3 , 82 ppb), Whitchurch-Stouffville reaches ... Whitchurch-Stouffville's water supply system is both groundwater-based with five municipal wells and since 2009 lake-based ( ...
Tata Power, an electrical and a power supply utility company, is based in Bombay (Mumbai). It is a part and a subsidiary of ... This dam was specially designed for flood control and generates 60,000 kW of electric power. There is an underground power ... This company has built various utility and power plants across all of India. It is operating a plant in Dhanbad also, known as ... It supplies water to the city of Dhanbad. ... Maithon Power Plant at Maithon. Damodar Valley Corporation is ...
It supplies power to government central electric network. Arta Pan is a manufacturer of wood-based panels like high density ... Non woven Carpet Tufted Carpet Carpet Yarn Fiber Latex Arta Energy is the first private sector power company who invested on ... The company, which operates production location in Ardabil, Iran, supplies impregnated decor paper to wood industry in other ... Invest on 100MW natural gas power plant in Ardabil.. ...
HelgelandsKraft supplies electric power to the Helgeland region. NRK (Norwegian Broadcasting Corporation) has a division in Mo ... The municipality is rich on iron ores, and water to produce power. This was very important for industrial development. The ... The iron and steel factory Jernverket consumes more power than the entire Oslo municipality.[citation needed] The National ...
"HARIPUR POWER PLANT GOES INTO OPERATION". MCCI. Retrieved 9 Feb 2021. "Dhaka Electric Supply Company Limited". Ministry of ... In October 1997, the Bangladesh Power Development Board signed a power purchase agreement (PPA) with Wärtsilä NSD Power ... In 1990 per capital electric power consumption was 48.4 kWh, which increased to 94.3 kWh by 1999. During the same period per ... In 1995 Regulatory power of BTTB was transferred to Ministry (MoPT) and the same year the 2nd and 3rd ITX were installed in ...
List of pre-nationalisation UK electric power companies EDF Energy. ... The London Electricity Board was the public sector utility company responsible for the supply and distribution of electricity ... It also sold and made available for hire and hire-purchase domestic electrical appliances through local showrooms where ... The total number of customers supplied by the board were: The amount of electricity sold, in GWh, by the LEB over its ...
"Electric Power Production and Supply". Romgaz Corporate Website. "Chess Notes - The Boston Globe". BostonGlobe.com. Retrieved ... which uses the wells combustion gas to supply power, which is being fed into the national electricity grid. In 2017, total ... a large thermal power plant located in Iernut, Mureş County. The company also runs experimental power generation projects at ... The first gas production was used to power the steam boilers in Sărmăşel and the gas lighting of the alleys in Bazna resort. ...
"Electrical System and Power Supply". Automotive Handbook (3rd ed.). Bosch. 1993. pp. 770-1. ISBN 0-8376-0330-7. Bosch & 3rd, p ... An alternator is a type of electric generator used in modern automobiles to charge the battery and to power the electrical ... The field windings are supplied with power from the battery via the ignition switch and regulator. A parallel circuit supplies ... electric power steering and other electrical systems. Very large alternators used on buses, heavy equipment or emergency ...
"The 20 kV Power Supply System". SEV. Retrieved 2 March 2017. "The 10 kV Power Supply System". SEV. Retrieved 2 March 2017. 10 ... "Green electrical power production almost 49% in 2018". www.sev.fo. 2019-02-08. Archived from the original on 27 October 2020. " ... power and 1.5 MW of biogas (BG) power. 42 MW of new WP and a pilot project with 0.2 MW of tidal power (TP) are committed. The ... "The power supply system". SEV. Retrieved 22 March 2017. Green Progress "Faroe Islands to get Europe's first wind-connected ...
... water supply and water resources; wastewater management; solid-waste treatment and disposal; electric power generation and ... There are severe constraints on the supply side of the provision of infrastructure in Asia. The infrastructure financing gap ... Sustainable energy infrastructure includes types of renewable energy power plants as well as the means of exchange from the ... Renewable energy includes well researched and widely implemented methods such as wind, solar, and hydraulic power, as well as ...
"Dhaka Electric Supply Company Limited". Ministry of Power, Energy and Mineral Resources. Retrieved 11 February 2021. Ichord, Jr ... In 1980 per capital electric power consumption was 18.7 kWh, which increased to 49.2 kWh by 1989. During the same period per ... Many of the deaths were a result of the destruction of homes or electrocution after strong winds toppled power poles across the ... Army Chief of Staff Lieutenant General Hussain Muhammad Ershad assumed power in a bloodless coup on 24 March 1982, citing the " ...
Electrical power generation with gas became a growth industry. As coal, hydroelectric and nuclear-powered generation facilities ... Supply, demand and price[edit]. While Canada is one of the world's three largest gas producers (the other two are Russia and ... They met immediate needs at only a fraction of the cost of large nuclear, hydro-electric or coal-powered facilities. Although ... Growing supplies sometimes created marketing problems. Natural gas liquids[edit]. Sales of gas liquids were seldom difficult ...
A 2-kilowatt electric generator supplies the electrical power. Sensors: Two scanning LIDAR laser systems, three Doppler radars ... The CajunBot software "CBSystem" runs on three EPIC form factor computers, each powered by a 1.8 GHz Intel Pentium M processor ... A custom dual alternator system powers the vehicle and onboard electronics. Redundant DC-to-DC converters transform the ... simulating military supply missions in an urban setting. Traveling among manned and robotic vehicle traffic, the team vehicles ...
The settlement generates its own electrical power via three generators. Olonkinbyen has a tundra climate (Köppen classified as ... Supplies are delivered eight times a year by aircraft. Fuel and heavy goods are transported by boat during the summer. ...
Water is supplied through these turbines. The Western Area Power Administration markets the power that is generated by the ... Each generator produces enough electrical power to power over 200,000 100-watt light bulbs, about 15,500 kilowatts of ... Each of the two generators contain approximately 7,700 kilowatts of electrical power. What drives the two generators through ... electrical power. Nimbus Dam consists of 18 radial gates, each with their own gate bays. These 18 gates today are the ones that ...
... as well as stationary applications such as remote power, uninterruptible power supply (UPS), energy storage systems, frequency ... Among other customers, Valence this year signed sales deals with Smith Electric Vehicles, a UK maker of electric commercial ... Valence's products are used in electric vehicle and plug-in hybrid electric vehicles (PHEVs) such as cars, scooters, motorbikes ... "Rubbermaid and Valence Extend supply agreement". "Hybrid ship ahoy: Valence to supply Siemens". Green Tech. "Valence Technology ...
"Grenfell Street Power Station". Adelaidia. Retrieved 22 December 2020. "Adelaide Electric Supply Company Power Station". ... also the office headquarters of the South Australian Electric Light and Motive Power Company. The original building dates from ... It is housed in the old Grenfell Street Power Station (later a TAFE college) at the eastern end of Grenfell Street in the ... Engineering Heritage Branch (17 July 1996). "Historic Engineering Marker at the Grenfell Power and East Terrace Converter ...
Power is supplied by ATCO Electric.[citation needed] Hospital services are located in nearby Castor. Additional diagnostic ... Municipal water is supplied by the Shirley McClellan Regional Water Commission. The sanitation system is owned and operated by ... The natural gas system is owned by the Village of Halkirk and is supplied by The Paintearth Gas Co-op. ... In addition, there are several industrial operations located near Halkirk, including a mining operation, a power generating ...
Ground combat forces, however, may find that co-locating an additional electrical power supply on the battlefield for every gun ... Gully, John (January 1991). "Power Supply Technology for Electric Guns". IEEE Transactions on Magnetics. 27 (1): 329-334. ... The high current required to power a railgun can be provided by various power supply technologies, such as capacitors, pulse ... these rails are connected to an electrical power supply, to form the breech end of the gun. Then, if a conductive projectile is ...
The two electric motors, designed by Breda, had a continuous power output of 622 kW (834 hp). From 1974, the D.445 class was ... They also supplied electric train heating. Servizio Mat. e Trazione (1971). Automotrici termiche. Florence: Ferrovie dello ... The FS Class D.443 is a class of diesel-electric locomotive used in Italy, introduced in the late 1960s and still in service. D ... The two engine were both V-12, 1,900 hp (1,400 kW) of power, coupled to a DC 640/1080 V generator provided by Ansaldo. ...
... which supplied power using natural gas. The South Australian Electric Light and Motive Power Company was registered in March ... The new power station, incorporating boilers, steam generators and a direct current (DC) electric generator able to distribute ... The directors of the SA Electric Light and Motive Power company were based in London, and in the same year, assisted by Wheadon ... June 15, 1926 / The chimneys of the Adelaide Electric Supply Co. are parallel with Grenfell St. and are 45 yards south of it. ...
Electrical disturbance at the power supply frequency or harmonics thereof. Contents: *Top ... The ratio of the power at one point in a transmission system to the power at a point farther along the line; usually expressed ... Amplitude variations in the output voltage of a power supply caused by insufficient filtering. ... They provide electrical isolation and a safety barrier. J[edit]. Jitter[edit]. Small, rapid variations in a waveform due to ...
The plant supplies process steam for use in food manufacturing. Electrical generation is sold to Georgia Power Company. The ... Mid-Georgia Cogen is a 308 MW electric combined cycle gas turbine power plant located in Kathleen, Georgia. The plant is ... 1] Atlantic Power Corporation, Mid-Georgia Cogen [2][dead link] Sonat Energy Services Purchases 50-Percent Interest in Georgia ... In 1999, the plant won Power Engineering magazine's Project of the Year award. Through a series of mergers and sales, the plant ...
The P8 was supplied with engine mountings. The electrical system was powered by a 12 volt, lightweight, aircraft battery, which ... It powered a starter solenoid via starter button and switches, as well as an array of instruments, including tachometer (0- ...
Steimel, Andreas (2008). Electric Traction - Motive Power and Energy Supply. Munich: Oldenbourg Industrieverlag GmbH. p. 38. ... power is transmitted to the others through the side rods. On diesel and electric locomotives, the driving wheels may be ... On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case ... The suffix 'o' is used to indicate independently powered axles. The number of driving wheels on locomotives varied quite a bit ...
The worldwide interest in using natural gas-fired combined cycle generating units for electric power generation, coupled with ... In contrast, prices in the US and the UK have recently skyrocketed, then fallen as a result of changes in supply and storage.[ ... while natural gas power plants emit approximately half the carbon dioxide of an equivalent coal power plant, the natural gas ... "High horse power off-road LNG vehicles in USA". Archived from the original on 15 April 2015. Retrieved 17 April 2015.. ...
... both for high-power applications such as switched-mode power supplies and for low-power applications such as logic gates. ... "Amplifier For Electric Currents". United States Patent and Trademark Office.. *^ "Device For Controlling Electric Current". ... The ASEA Brown Boveri (ABB) 5SNA2400E170100 ,[82] intended for three-phase power supplies, houses three n-p-n IGBTs in a case ... A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. Transistors are one ...
The earliest known use of wind power is the sailing ship; the earliest record of a ship under sail is that of a Nile boat ... For example, science might study the flow of electrons in electrical conductors by using already-existing tools and knowledge. ... The advancements in technology in this era allowed a more steady supply of food, followed by the wider availability of consumer ... In Goethe's Faust, Faust selling his soul to the devil in return for power over the physical world is also often interpreted as ...
Renewables Supply 14 Pct of German Power - Industry [online]. Reuters, January 9, 2008, [cit. 2008-01-17]. Dostupné online. ... General Electric, Sharp, či Royal Dutch Shell.[15][16] ... Power of green. *↑ Solar power shines bright in Silicon Valley. ... What Solar Power Needs Now Renewable Energy Access, 13 August 2007. *↑ news and Official EP resolution of 25 September 2007 on ... Thin Film Could Soon Make Solar Glass and Facades a Practical Power Source [online]. Energy Priorities, May 22, 2006, [cit. ...
These kinds of tests can be divided into recordings of: (1) spontaneous or continuously running electrical activity, or (2) ... It supplied food to the population during famine and distributed food to the poor. This welfare system the church funded ... the vesting of an individual with mystic powers); and divination (magically obtaining the truth). The field of medical ...
... power supply & IT) went into operation on 16 March 2018.[298] ... Deficiencies in the electrical system and wiring continue to be ... Vehicles, equipment and supplies that were needed at Tegel until the final moments would have been transported to BER during ... One source with the TÜV stated, "What the airport ordered was sufficient for a circus tent, but [if power fails] not for the ... The airport failed a mandatory TUV acceptance test in May, with 863 issues found in the electric wiring.[194] ...
When asked by reporters for more information on the ongoing problems, British Airways stated "The root cause was a power supply ... General Electric GE90 engine, which led to a substantial fire. The aircraft was evacuated on the main runway. All 157 ... Each First suit comes with a 6 ft 6 in (1.98 m) bed, a 15-inch (38 cm) wide entertainment screen, and in-seat power.[158][159] ... On 27 May 2017, British Airways suffered a computer power failure. All flights were cancelled and thousands of passengers were ...
Initially, the tornado has a good source of warm, moist air flowing inward to power it, and it grows until it reaches the " ... John R Leeman, E.D. Schmitter; Schmitter (April 2009). "Electric signals generated by tornados". Atmos. Res. 92 (2): 277-79. ... As the RFD completely wraps around and chokes off the tornado's air supply, the vortex begins to weaken, and become thin and ... They most often form from smoke issuing from a power plant's smokestack. Hot springs and deserts may also be suitable locations ...
Ohio State's "Buckeye Bullet" electric car broke the world record for the fastest speed by an electric vehicle on October 3, ... renewable energy sources and sustainable drinking water supplies.[34] ... students and engineers from the Ford Motor Company and will seek to break the land speed record for hydrogen cell powered ... record for fastest electric vehicle with a speed of 314.958 mph (506.9 km/h), and peak timed mile speed of 321.834 mph (517.9 ...
Depietropaolo DL, Powers, JH, Gill JM, Foy AJ (15 July 2005). "Diagnosis of Lyme disease". American Family Physician. 72 (2): ... Benach supplied him with more ticks from Shelter Island and sera from people diagnosed with Lyme disease. University of Texas ... of people adversely impacts the heart's electrical conduction system, causing atrioventricular block that often manifests as ...
Stuber KJ, Grod JP, Smith DL, Powers P (2005). "An online survey of chiropractors' opinions of Continuing Education". Chiropr ... and Chiropractic Supply in Local Health Care Markets". Journal of Manipulative and Physiological Therapeutics. 38 (8): 533-44. ... electrical muscle stimulation, therapeutic ultrasound, and moist heat.[21] Some mixers also use techniques from alternative ... or they may use an electric device known as an "ArthroStim" for assessment and spinal manipulations.[77] Insurers in the US and ...
Electric power. *Nuclear power *Nuclear power plant. *Radioisotope thermoelectric generator. *Solar power *Photovoltaic system ... The work required to move an electric charge of one coulomb through an electrical potential difference of one volt, or one ... The work required to produce one watt of power for one second, or one watt-second (W⋅s) (compare kilowatt-hour - 3.6 megajoules ... It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one ...
Further standards are IEC 60601-1 which is for electrical devices (mains-powered as well as battery powered), EN 45502-1 which ... Iran produces about 2,000 types of medical devices and medical supplies, such as appliances, dental supplies, disposable ... Future developments led to the isotope-power source that would last for the lifespan of the patient.[page needed] ... Some producers in Iran export medical devices and supplies which adhere to European Union standards to applicant countries, ...
As the zygote develops into an embryo, the triploid cell develops into the endosperm, which serves as the embryo's food supply ... Bees are extremely hairy, and carry tiny electric charges which attract the pollen onto their bodies. Honey bees have special ... A lot of nectar is produced to fuel the high metabolic rates needed to power their flight. ... The benefit to the plant is that the guides increase the supply of pollinators at a relatively low cost. ...
The company sells a substantial amount of its coal to producers of electric power, steel producers and industrial facilities.[2 ... The company supplies 15% of the domestic market.[3] Demand comes mainly from generators of electricity.[4] ... Supplies coal to customers on five continents[2]. *Holds the most diversified position among U.S. coal producers with ... Produces low-sulfur thermal coal for power generation and metallurgical coal for steelmaking[5] ...
... , often infused with sulfur[18] or iodine, is widely used to trap mercury emissions from coal-fired power ... Because of its high cost, the so-called GAC rule encountered strong opposition across the country from the water supply ... Such materials combine high hydrophobicity and chemical stability with electrical and thermal conductivity and can be used as ... Bead activated carbon (BAC) is made from petroleum pitch and supplied in diameters from approximately 0.35 to 0.80 mm. Similar ...
... experiments-where excess heat was measured after the electric current supplied to the electrolytic cell was turned off.[115] ... The calculated power leaving the cell was significantly higher than the input power during these high temperature phases. ... Biberian 2007 - (Input power is calculated by multiplying current and voltage, and output power is deduced from the measurement ... the power input to the cell was equal to the calculated power leaving the cell within measurement accuracy, and the cell ...
Powered wheelchairs. Main article: Motorized wheelchair. An electric-powered wheelchair, commonly called a "powerchair" is a ... Braking is supplied directly by the attendant who will usually also be provided with a foot- or hand-operated parking brake. ... Some versions are entirely manual, others have powered stand on an otherwise manual chair, while others have full power, tilt, ... The electric wheelchair shown on the right is fitted with Mecanum wheels (sometimes known as Ilon wheels) which give it ...
Thomas Reid (January 2012). Essays on the Active Powers of the Human Mind; An Inquiry Into the Human Mind on the Principles of ... Ordinary randomness is appealed to as supplying the "elbow room" that libertarians believe necessary. A first common objection ... the build-up of electrical signal called the readiness potential (after German Bereitschaftspotential, which was discovered by ... "only the power of acting, what is this power? It is the effect of the constitution and present state of our organs." ...
By the 1950s, the Hoa held such significant amounts of economic power and influence, that they were viewed as "a state within a ... and electrical industries, 100 percent of the wholesale trade, more than 50 percent of the retail trade, and 90 percent of the ... The huge materials supply system ensured maximum support for ethnic Chinese entrepreneurs for whatever goods and services they ... the disproportionate amount economic power held by the Hoa minority led to resentment from the Vietnamese.[179][225] Before ...
What Is the Electric Car?. *Revenge of the Electric Car. See also. *Wind-powered vehicle ... Presently there are no operating gas stations in California supplying methanol in their pumps. Rep. Eliot Engel [D-NY17] has ... Increased electrical conductivity promotes electric, galvanic, and ordinary corrosion in the fuel system. Soluble contaminants ... As a fuel for mud racers, methanol mixed with gasoline and nitrous oxide produces more power than gasoline and nitrous oxide ...
Hinkley Point A nuclear power station was a Magnox power station constructed between 1957 and 1962 and operating until ceasing ... Rugby: Central Waterways Supplies. ISBN 0-907864-97-X. .. *^ Charles Oman. "History of Taunton Castle in Somerset". Britannia ... Dorset is currently the only county in the region where there are electric trains, though the Great Western Main Line and the ... The Portishead power stations were coal-fed power stations built next to the dock. Industrial activities ceased in the dock ...
Angren Power Station (Uzbekistan). Majuba Power Station (South Africa). Chinchilla Demonstration Facility (Australia). ... Injection wells are used to supply the oxidants (air, oxygen) and steam to ignite and fuel the underground combustion process. ... For high pressure break-up of the coal, hydro-fracturing, electric-linkage, and reverse combustion may be used in varying ... UCG product gas is used to fire combined cycle gas turbine (CCGT) power plants, with some studies suggesting power island ...
Power for the rotor was provided by three Continental J69-T-9 jet engines attached to the truss. Each engine had its own fuel ... where the lift is supplied over the entire area of the rotor disk.[3] Most designers turned to bleeding off air from the ... thrust General Electric J85 turbojets and increased the turborotor diameter from five to six ft.[32] ... Power for the compressor was drawn from a new type of turbine similar to a centrifugal fan, as opposed to the more typical ...
... supported the Axis powers. Haj Amin al-Husseini became the most prominent Arab collaborator with the Axis powers.[16] ... On January 19, the Irgun launched coordinated attacks in Jerusalem, bombing an electrical substation to black out the area as ... Food supplies to Jewish concentration camp survivors in the British zone were cut to prevent them from assisting Jews fleeing ... The mandatory power shall use its best endeavours to ensure that an area situated in the territory of the Jewish state, ...
dB(W) - power relative to 1 watt.. dBk. dB(kW) - power relative to 1 kilowatt.. dBe. dB electrical.. dBo. dB optical. A change ... which is negligible given the precision of the values supplied and the accuracy of most measurement instrumentation.. ... A change of 1 dBo in optical power can result in a change of up to 2 dBe in electrical signal power in system that is thermal ... Field quantities and root-power quantitiesEdit. Main article: Field, power, and root-power quantities ...
Hydroelectric power station on the Pliva river with installed capacity of 8 MW was constructed to supply electricity for the ... Calcium carbide is produced industrially in an electric arc furnace from a mixture of lime and coke at approximately 2,200 °C ( ... The method for the production in an electric arc furnace was discovered in 1892 by T. L. Willson and independently by H. ... Most miners' lamps have now been replaced by electric lamps. Carbide lamps are still used for mining in some less wealthy ...
... to study hydro-electric engineering.) The plant supplied power to the Gold King Mine 3.5 miles away. This was the first ... Nunn developed a keen interest in education as part of his electrical power companies, and in conjunction with Cornell ... Nunn and his brother Paul built power plants in Colorado, Utah, Idaho, Montana, Mexico, and the Ontario Power plant at Niagara ... The power plant house was leased for a period of time by Eric Jacobson, who restored the house and the generator inside. The ...
Bio Diesel Powered Fast Attack Craft Of Indian Navy patrolling during IFR 2016.The green bands on the vessels are indicative of ... The downsides to these fireplaces is that their heat output is slightly less than electric heat or gas fires, and precautions ... Many of the biofuels that were being supplied in 2008 (using the first-generation biofuel production procedure) have been ... Utilities generate power, typically in the range of 5 to 50 MW, using locally available fuel. Other industries have also ...
Jones, J.A.T. ; Bowman, B. and Lefrank, P.A. (1998) "Electric Furnace Steelmaking", in The Making, Shaping and Treating of ... Juleff, G. (1996). "An ancient wind powered iron smelting technology in Sri Lanka". Nature. 379 (3): 60-63. Bibcode:1996Natur. ... and are thus generally only economical when there is a plentiful supply of cheap electricity.[53] ... They can also be used for converting pig iron to steel, but they use a lot of electrical energy (about 440 kWh per metric ton ...
The influence of pulsed electrical excitation of dielectric barrier discharges (DBD) on the conve ... application of non-thermal plasma enhanced selective catalytic reduction of NOx for Diesel cars compact low cost power supplies ... Pulsed Electrical Excitation of Dielectric Barrier Discharge Reactors using Semiconductor Power Supplies 2000-01-2894. ... Citation: Hammer, T., "Pulsed Electrical Excitation of Dielectric Barrier Discharge Reactors using Semiconductor Power Supplies ...
The dual-mode power supply supplies power to the sensor, broadband noise circuit and controller using a first mode and later ... The assembly powers-up quickly without dissipating excessive heat while power is being supplied to the assembly. The assembly ... and a dual-mode power supply. The sensor detects a current flowing in an electrical circuit and develops a corresponding sensor ... An arcing fault protection assembly and a corresponding method determine whether arcing is present in electrical circuits. ...
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Electric Power Supply Assn., slip. op. at 2, 10. FERC v. Electric Power Supply Assn., slip. op. at 2, 11-13. FERC v. Electric ... FERC v. Electric Power Supply Assn., slip. op. at 1 (Scalia, J., dissenting). Text of FERC v. Electric Power Supply Assn, 577 ... 16 U.S.C. §§ 824(b), 824e(a). FERC v. Electric Power Supply Assn., slip. op. at 1-2. FERC v. Electric Power Supply Assn., slip ... FERC v. Electric Power Supply Assn, 577 U.S. ___ (2016), was a case in which the Supreme Court of the United States held that ...
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  • 2.1 Adopting the modular design of switching power supply, N +1 hot backup. (cncoslight.com)
  • Now for working with HV circuits like the flyback circuits of CRT televisions, yes special procautions need to be taken, but in your run of the mill switching power supply not as much, just look at the ratings on the capacitors being replaced usually under 25 volts. (hackaday.com)
  • The influence of pulsed electrical excitation of dielectric barrier discharges (DBD) on the conversion of NO to NO 2 was investigated for various discharge gaps and exhaust gas temperatures: Using a thyratron switched HV power supply with a voltage pulse duration of about 100 ns, DBDs with discharge gaps up to 8 mm could be excited. (sae.org)
  • Further experimental work was done using a compact semiconductor switched power supply with a voltage pulse duration of about 500 ns. (sae.org)
  • SA Power Networks is the fifth largest distributor in the Australian electricity market, providing safe and reliable delivery of electricity from high voltage transmission network connection points to more than 780,000 customers. (industrysearch.com.au)
  • A restart section in an electric powered vehicle restarts a controller from a sleep mode, when a voltage higher than a restart voltage is supplied for over a. (patents.com)
  • A current measurement and voltage measurement transducer for power measurements has an upper split core attached to an upper housing and a lower split core. (patents.com)
  • As many of you may have experienced … "bad power" in the form of voltage transients, spikes, and high frequency noise can wreak havoc with sensitive electronics and controls! (controlledpwr.com)
  • The purpose of the 24 V power supply unit is to provide the 24 V control voltage for all experiments. (festo-didactic.com)
  • A UPS is used to provide good quality power to the load when power fails, regulate the load voltage when supply voltage fluctuates provide constant voltage and constant frequency supply to the load suppress the voltage spikes and minimize the radio frequency interferences and electromagnetic interferences. (expertsmind.com)
  • A switch-mode power supply is to be designed with the following specifications: input voltage V s = 48 V ± 10%, output voltage V o = 5 V, switching frequency f s = 100 kHz, output power P o = 15-50 W. A forward converter operating in a continuous current mode with a demagnetizing winding of N 3 = N 1 is to be used. (expertsmind.com)
  • begingroup\$ PMOS devices do not need a gate voltage boost circuit in a positive power supply - that is their primary pro. (stackexchange.com)
  • A unique element of the London power grid is that it was the first urban high voltage direct current transmission system in the world. (wikipedia.org)
  • The voltage converter circuit converts the power to the input voltage supplied to other circuitry. (patentsencyclopedia.com)
  • The voltage converter circuit varies the input voltage in response to a load current drawn by the other circuitry from the power supply. (patentsencyclopedia.com)
  • 11. The system of claim 10, wherein placing the headset circuitry in a lower power consumption state comprises terminating the input voltage to the headset circuitry. (patentsencyclopedia.com)
  • 32. The power supply of claim 29, wherein the voltage converter circuit adjusts the input voltage to the headset circuitry linearly, in proportion to changes in the headset load current. (patentsencyclopedia.com)
  • 34. The power supply of claim 29, wherein the voltage converter circuit adjusts the input voltage to the headset circuitry at a first rate in response to increasing headset load current and a second rate for decreasing headset load current. (patentsencyclopedia.com)
  • 35. The power supply of claim 29, further comprising:a voltage control loop circuitry monitoring the headset load current and the input voltage, the voltage loop circuitry providing a feedback signal to the voltage converter circuitry. (patentsencyclopedia.com)
  • begingroup\$ No. Power supplies use active PFC, which is a DC-to-DC converter that tracks the AC voltage waveform and makes the load look resistive to the utility by forcing the AC current to be sinusoidal and in phase with the voltage. (stackexchange.com)
  • A long experience in design of flash lamps power supplies and high voltage generators for professional CRT has led EDN to IPL and Laser market. (ednormandy.com)
  • Equipped with levers and Push-in CAGE CLAMP® technology, 3-Phase ECO Power Supplies are operated from 325 to 575 VAC voltage input. (thomasnet.com)
  • The scope of supply for Siemens, in its capacity as general contractor, includes the medium and low voltage switchgears, the transformers, the fire safety system and the building's air conditioning and ventilation system. (innovations-report.com)
  • The onshore power supply system from Siemens meets the required international standards IEC/ISO/IEEE 80005-1 (cable connection between shore and ship on the medium voltage side) and IEC 62613-2 (connectors and sockets). (innovations-report.com)
  • The modular system from Siemens covers all power ranges required in the shipping industry and is suitable for the world's common ship frequencies (50 and 60 Hertz) as well as all necessary voltage levels for shipping. (innovations-report.com)
  • And there is far from a thousand volts in most consumer electronics, usually the highest voltages is on the input side of the power supply which is line voltage (110-240V in most cases). (hackaday.com)
  • He worked on a condensator, thought there is no power(he killed the multimeter LOL) and came in touch, it was to much voltage for his body. (hackaday.com)
  • C=consumers, D=step down transformer, G=generator, I=current in the wires, Pe=power reaching the end of the transmission line, Pt=power entering the transmission line, Pw=power lost in the transmission line, R=total resistance in the wires, V=voltage at the beginning of the transmission line, U=step up transformer. (wikipedia.org)
  • Electrical energy is distributed as alternating current because AC voltage may be increased or decreased with a transformer . (wikipedia.org)
  • This allows the power to be transmitted through power lines efficiently at high voltage, which reduces the energy lost as heat due to resistance of the wire, and transformed to a lower, safer, voltage for use. (wikipedia.org)
  • Use of a higher voltage leads to significantly more efficient transmission of power. (wikipedia.org)
  • This means that when transmitting a fixed power on a given wire, if the current is halved (i.e. the voltage is doubled), the power loss will be four times less. (wikipedia.org)
  • Consequently, power transmitted at a higher voltage requires less loss-producing current than for the same power at a lower voltage. (wikipedia.org)
  • High voltage transmission lines deliver power from electric generation plants over long distances using alternating current. (wikipedia.org)
  • In a power plant , energy is generated at a convenient voltage for the design of a generator , and then stepped up to a high voltage for transmission. (wikipedia.org)
  • High-voltage direct-current (HVDC) electric power transmission systems have become more viable as technology has provided efficient means of changing the voltage of DC power. (wikipedia.org)
  • [ citation needed ] Transmission with high voltage direct current was not feasible in the early days of electric power transmission , as there was then no economically viable way to step down the voltage of DC for end user applications such as lighting incandescent bulbs. (wikipedia.org)
  • Looking For Superior Power Conditioning And Voltage Regulation? (controlledpwr.com)
  • The quality of the supplied electricity has been improved continuously: the annual average interruption duration for low voltage supply has been reduced from 1.35 h in 1996 to 1.06 h in 1997. (osti.gov)
  • TPVT0303A-W2 0.25W DC/DC converters 3.3Vin 3.3Vout Miniature surface mounted DC/DC Converters are an ideal and economical solution for many applications where noise reduction, voltage isolation, voltage conversion in distributed power systems is required. (tradeee.com)
  • An ECU discharges the smoothing capacitor even if the voltage on the power line is lower than a determination voltage by causing the DC/DC converter to operate to charge the auxiliary battery in a discharging mode where the CHR is set OFF. (patentsencyclopedia.com)
  • 6. The power supply system for an electric powered vehicle according to claim 1, wherein said first determination voltage is determined corresponding to a lower limit of a rated input voltage range of said power converter. (patentsencyclopedia.com)
  • 8. The method of controlling a power supply system for an electric powered vehicle according to claim 7, wherein n said step of charging, said power converter is operated such that output voltage or output current to said sub-power storage device is constant, and in said step of converting, said power converter is caused to operate such that said output current is maximum. (patentsencyclopedia.com)
  • Line disturbances may include voltage sags (brownouts), power interruptions (often less than one second), phase loss, phase imbalance, voltage imbalance and harmonics. (hsb.com)
  • See the full-text article for more information about electrical protection devices such as phase monitors and Transient Voltage Surge Suppression devices. (hsb.com)
  • This research had a threefold purpose: (1) to determine the range of typical values for power system characteristics that affect short circuits and motor starts on high-voltage longwalls, (2) to identify how motor-start waveforms differ from those for short circuits, and (3) to devise a method to provide short-circuit protection without intentional time delays to account for motor starts. (cdc.gov)
  • Distribution voltage, transformer impedance, power center location, and motor size were found to critically influence the magnitude of short-circuit and motor-start currents on high-voltage longwalls. (cdc.gov)
  • The Corporation built a power station in Bengeworth Road Loughborough Junction (51°27'59"N 0°05'48"W) in the Borough of Lambeth together with a high voltage distribution cable network. (wikipedia.org)
  • FERC v. Electric Power Supply Ass'n, 577 U.S. ___ (2016), was a case in which the Supreme Court of the United States held that the Federal Energy Regulatory Commission had the authority to regulate demand response transactions. (wikipedia.org)
  • List of United States Supreme Court cases Lists of United States Supreme Court cases by volume List of United States Supreme Court cases by the Roberts Court FERC v. Electric Power Supply Assn., No. 14-840, 577 U. S. ____, slip op. at 2, 33-34 (2016). (wikipedia.org)
  • EDN makes its own transformers which are often the key of a well-fitted power supply. (ednormandy.com)
  • Converter transformers are used to connect the system to the supply grid. (innovations-report.com)
  • Controlled Power Company manufactures a complete line of Industrial DC Power Supplies (rectifiers) for e-coating, plating, anodizing, and other applications requiring DC power. (controlledpwr.com)
  • Controlled Power Company manufactures rectifiers that range from 6V - 1000V DC and 35A - 36,000A DC. (controlledpwr.com)
  • Single Line Diagram Of 11kv Substation furthermore Dc Motor Driver Circuits together with Transformer Less Power Supply as well Resistance And Percussive Arc Welding In Diodes Capacitors And Power Rectifiers in addition High Power 6 Led Flashlight For 1 5v Aa Battery. (ebooksnovedades.com)
  • Did you know that we also manufacture industrial DC power supplies (rectifiers)?As an ISO 9001:2015 certified, U.S. manufacturer of the highest quality industrial DC power supplies for e-coat, anodizing, and plating applications, we capitalize on over 45 years of expertise! (controlledpwr.com)
  • For BGE, Delmarva Power, and Pepco, the bidding for Residential contracts will occur in two procurements - October 2017 and April 2018, and the contract term will be twenty-four months. (businesswire.com)
  • For Delmarva Power and Pepco, the bidding for small commercial Type I, is combined with Residential contracts and will occur in two procurements - October 2017 and April 2018, and the contract term will be for twenty-four months. (businesswire.com)
  • ROSEMONT, IL, JANUARY 12, 2018 -- Emerson today announced a major upgrade to its SolaHD SDN 40-24-100C 40A DIN rail power supply that doubles the number of terminals available for improved connectivity to power multiple devices, while also stepping up its heat rating to expand the number of types of hazardous environments where the power supply can be deployed. (electricsmarts.com)
  • Global Patient Lifts Market research Report 2018 offered by Supply Demand Market Research contains a market summary of the trade that talks regarding market size, product scope, market revenue, growth. (openpr.com)
  • The British government reduced its subsidies for electric cars at the end of 2018, but still offers rebates of up to 3,500 pounds ($4,600) for 31 vehicle models. (yahoo.com)
  • Our extensive selection of electrical distribution equipment can help protect your system from overload conditions. (grainger.com)
  • The SDN 40-24-100C is now capable of powering twice the large DC loads than its predecessor on a standard, single-phase AC circuit, allowing manufacturers to add new equipment that can be powered from an existing structure with little or no retrofitting requirements. (electricsmarts.com)
  • 2.4 Choose power bus and control bus according to different schemes, the power module can supply power directly and separately, the hot backup can be realized through dropping equipment. (cncoslight.com)
  • Data collected via remote automated computer monitoring of electrical equipment. (edu.au)
  • The enclosures house and protect the electrical equipment used to provide power to a site. (ritherdon.co.uk)
  • Shanghai Zhenda Complete Sets of Electric Equipment Co., Ltd. (made-in-china.com)
  • These national industry-specific occupational employment and wage estimates are calculated with data collected from employers of all sizes, in metropolitan and nonmetropolitan areas in every State and the District of Columbia, in NAICS 444200 - Lawn and Garden Equipment and Supplies Stores. (bls.gov)
  • There are many causes of air conditioning and refrigeration equipment breakdowns, but all fall into two general categories - mechanical failure or electrical failure. (hsb.com)
  • Electrical breakdowns of hermetic units represent about 60 percent to 70 percent of total equipment losses. (hsb.com)
  • Proper grounding of the electrical system and equipment is also critical. (hsb.com)
  • Mids-tools" and "Midlands Tool Supplies" are the Ebay trading divisions of Midlands Tool Supplies Ltd. a major UK supplier of tools and equipment. (ebay.co.uk)
  • An uninterruptible power supply provides emergency power when utility power is not available. (expertsmind.com)
  • The Schneider Electric Galaxy VX three-phase uninterruptible power supply (UPS) has flexible operating modes for large facilities, data centres and business-critical applications. (technologydecisions.com.au)
  • Power Wizard Fence Energizers are available in many farm supply and hardware stores throughout North America. (powerwizardinc.com)
  • Bankside power station has now been converted into Tate Modern , but still houses part of a large electricity transformer substation. (wikipedia.org)
  • All electrical distribution systems whether commercial, residential or industrial need protection from power surges, short circuits, overloads and other unwanted problems. (grainger.com)
  • Current Group projects include cutting-edge nuclear power generation plants, more efficient coal-fired power generation, power systems using sources such as solar and wind power, grid connection control and battery storage technologies, as well as smart grids. (hitachi.com)
  • Mitsubishi Electric Power Products Inc. has recently received orders for ozone systems to be used in water and sewage treatment plants. (wwdmag.com)
  • Ozone is a highly efficient, environmentally friendly way to treat water," said Bob Kim, general manager of Mitsubishi Electric Power Products Ozone Systems Div. "Ozone disinfects, deodorizes, decolorizes and removes organic matter without chemicals. (wwdmag.com)
  • Mitsubishi Electric's ozone systems feature small-diameter glass dielectrics to save space, and high ozone generating capacity per electrode, which also reduces power and oxygen consumption, the company said. (wwdmag.com)
  • Mitsubishi Electric began its ozone system business in 1968, and, since entering the North American market in 2004 has installed systems in 10 locations. (wwdmag.com)
  • Rotork orders for the Karbala Refinery include large quantities of IQ3 non-intrusive intelligent electric valve actuators, designed specifically for automated flow control systems in hazardous environments. (power-technology.com)
  • With over 30 years experience, Michell designs and manufactures a wide range of transmitters, instruments and systems capable of measuring trace moisture, oxygen and hydrocarbon dew point in a vast range of applications and industries including compressed air, power generation, process, oil and gas, petrochemical, pharmaceutical and many more. (thomasnet.com)
  • Standard power utilization voltages and percentage tolerance vary in the different mains power systems found in the world. (wikipedia.org)
  • Due to the design of hermetic systems, and the frequent line disturbances experienced in most electrical power supply and distribution systems, providing additional protection for the electrical power supply to motor/compressor units will address the single largest category of loss. (hsb.com)
  • The Pittsburgh Research Center (PRC)4 investigated how the starting of induction motors may cause nuisance tripping of short-circuit protection on coal mine power systems. (cdc.gov)
  • (Boucherville,QC) - Ballard Power Systems (NASDAQ MKT: BLDP) has selected TM4 Inc. for the supply of electric motors and inverters to be coupled with new compressor units. (tm4.com)
  • A wholly owned subsidiary of Hydro-Québec, TM4 designs and markets production-ready electric and hybrid powertrain systems suitable for the commercial, automotive and recreational vehicle markets as well as the marine, mining, rail and motorsports sectors. (tm4.com)
  • About Ballard Power Systems Inc. (tm4.com)
  • However, utilities and grid operators often argue that today's power systems cannot accommodate significant variable wind and solar supplies without failure ( 1 ). (pnas.org)
  • Control and Automation of Electric Power Distribution Systems addresses all of these issues to aid you in resolving automation problems and improving the management of your distribution network. (routledge.com)
  • Using Control and Automation of Electric Power Distribution Systems, you can embark on the automation solution best suited for your needs. (routledge.com)
  • Henan New Taihang Power Source Co.Ltd is specialized in researching and developing、producing、marking the lead-acid battery,Ni-Cd battery,Ag-Zn battery,cylindrical lithium-ion battery,electric vehicles power source systems,electric tool battery and so on.Welcome to inquire! (thdy.com)
  • The JoRIEW project will help structure and enhance S&T cooperation in areas of common interest, such as research system integration, integrated energy and water planning, development of water supply systems that can be powered by intermittent renewable energies, in particular flexible pumping techniques and reverse osmosis desalination technology, where joint research efforts could bring common solutions and mutual benefits. (europa.eu)
  • However, as electricity became more controllable, many small " power houses " that produced steam realized they could also produce and use electricity, and they adapted their systems to cogenerate both steam and electricity. (encyclopedia.com)
  • DTK-RM24POES Surge Protector features state-of-the-art circuitry and offers surge protection for shielded Power over Ethernet connections. (thomasnet.com)
  • I've repaired the power supply in my DirecTIVO unit, LCD monitors, desktop motherboards, and desktop computer power supplies(and in one case with the power supply still hooked up to the computer but unplugged) mere minutes after unplugging and disassembling it, the circuitry is generally sufficient to drain the voltages of the power supply. (hackaday.com)
  • 5 . The method of claim 2 wherein the applying comprises applying the electrical energy to the load located at a customer location, and the monitoring comprises monitoring using control circuitry located proximate to the customer location. (google.ca)
  • 7 . The method of claim 6 wherein the control circuitry comprises control circuitry of a power management device coupled with the load. (google.ca)
  • one to create data for a examination of the efficiency and compatibility of Battery PV generators with power consumption requirements of outdoor festivals and events. (edu.au)
  • Shop our wide selection of electrical distribution products. (grainger.com)
  • Not valid on TSC gift cards, Power Plus warranties, delivery services, Bad Boy and Cub Cadet products. (tractorsupply.com)
  • At ESL Supply our goal is to provide our customers a wide selection of products for everyday life. (eslsupply.com)
  • We began as Energy Saving Lighting and have been experts with Electrical, Lighting and Energy Saving products for over 40 years. (eslsupply.com)
  • We began expanding our offering several years ago to offer many more products to our consumers including Camping, Hunting, Fishing and Survival Supplies. (eslsupply.com)
  • The selection of TM4's products was also driven by the cost optimization process of the development of this new generation of FCvelocity®-HD power module. (tm4.com)
  • Some researchers estimate that if all large U.S. industrial plants used cogeneration technology, there would be enough energy-generating capacity to last until 2020 without building any new power plants. (encyclopedia.com)
  • He identifies a few common components and areas that one should check while diagnosing a non-functioning power supply. (hackaday.com)
  • A charging system for a battery powered electric vehicle operates bidirectionally for charging the battery or for supplying power back to the utility grid at any selected power factor so that load leveling may be effected. (patents.com)
  • The country has exempted battery-powered vehicles from the 25% value-added tax imposed on petrol and diesel engines, as well as other taxes levied on car purchases. (yahoo.com)
  • The rear-wheel drive of this battery-powered vehicle was provided by 2 permanent magnet motors. (osti.gov)
  • The system will supply electricity to cruise ships of all common sizes and electrical system designs, allowing them to turn off their own diesel generators and reduce harmful emissions during their lay days. (innovations-report.com)
  • Most large hospitals and medical centers are equipped with generators for emergency backup power and egress lighting. (controlledpwr.com)
  • An arcing fault protection assembly and a corresponding method determine whether arcing is present in electrical circuits. (google.com)
  • For power distribution there are load centers, panelboards and power distribution blocks suitable for new installations or when reworking circuits. (grainger.com)
  • The usual waveform of alternating current in most electric power circuits is a sine wave . (wikipedia.org)
  • The South London Electric Corporation was abolished in March 1948 upon the nationalisation of the British electricity supply industry. (wikipedia.org)
  • While the base will be stable nuclear power plant operations, there are many areas where we can contribute, including improving the nuclear fuel cycle, using IGCC in particular to improve coal-fired power generation efficiency, and by creating battery technologies--vital in expanding renewable energy use. (hitachi.com)
  • New coal-fired power in Australia: a case of politics before practicality? (power-technology.com)
  • Drakelow Power Station refers to a series of three now decommissioned and demolished coal-fired power stations located 2.4 mi (3.9 km) south of Burton upon Trent, Staffordshire in the West Midlands of England, on the River Trent. (wikipedia.org)
  • The assembly comprises a sensor, a broadband noise circuit, a controller, and a dual-mode power supply. (google.com)
  • The study program also comprises, besides various teaching areas in the field of electrical engineering and information technology, teaching in the disciplines of computer science, aerospace engineering, mechanical engineering and energy management. (uni-stuttgart.de)
  • 6. A system according to claim 1 wherein the communication means comprises a channel separate from the power distribution network. (patents.com)
  • In some embodiments, a device comprises an array of two or more independently switchable power. (patents.com)
  • 3 . The method of claim 2 wherein the monitoring comprises monitoring frequency of the electrical energy. (google.ca)
  • 4 . The method of claim 3 wherein the adjusting comprises adjusting responsive to the frequency of the electrical energy dropping below the one of the values of the threshold. (google.ca)
  • 14 . The method of claim 1 wherein the adjusting comprises reducing the amount of electrical energy applied to the load. (google.ca)
  • 15 . The method of claim 1 wherein the adjusting comprises ceases the applying of the electrical energy. (google.ca)
  • The heart of the system is a frequency converter with control software that adjusts the frequency of the local distribution grid to the ship's electrical system. (innovations-report.com)
  • We transformed the transmission contracting and project delivery for a large electric utility by introducing leading-edge sourcing methods, "should cost" modeling, and an innovative partnership model. (mckinsey.com)
  • These currents typically alternate at higher frequencies than those used in power transmission. (wikipedia.org)
  • A schematic representation of long distance electric power transmission. (wikipedia.org)
  • In the light of research on magnetic coupling in recent years [ 12 - 14 ], transcutaneous power transmission has become a feasible solution for this power-supply issue. (hindawi.com)
  • As the world enters a technology-driven energy transition, energy enterprises will rely more and more on their procurement and supply-management capabilities to meet cost targets, secure supplies, improve safety and reliability, innovate, and optimize the total cost of ownership. (mckinsey.com)
  • Under the Federal Power Act, the Federal Energy Regulatory Commission (FERC) is allowed to regulate "the sale of electric energy at wholesale in inter state commerce", including any activities that affect the wholesale price of electricity. (wikipedia.org)
  • Therefore, achieving reduced CO2 emissions--while maintaining a stable energy supply--is a social challenge requiring a worldwide solution. (hitachi.com)
  • That will require securing a stable energy supply while developing and innovating power generation methods technologies that greatly reduce CO2 emissions. (hitachi.com)
  • Figures include CO2 emissions not only from powergenerating fuel combustion but from all the energy consumed in the electric power supply process- from the mining of raw materials to the construction of power generation plants, fuel transportation, operation, repairs and maintenance. (hitachi.com)
  • The keys to halving CO2 emissions by 2050 are innovations and improvements in the supply of energy, which accounts for around 40 percent of CO2 emissions and where demand will keep growing. (hitachi.com)
  • This is due partly to the wide distribution of uranium--used for fuel--across politically secure regions and its potential contribution to energy supply stabilization, as well as the fact that no CO2 is emitted. (hitachi.com)
  • Snohomish County PUD ("PUD") may, from time to time, have surplus electric energy to sell. (snopud.com)
  • The PUD will make such surplus electric energy available under terms consistent with the Bonneville Power Administration's Policy on Determining Net Requirements of Pacific Northwest Utility Customers under Sections 5(b)(1) and 9(c) of the Northwest Power Act. (snopud.com)
  • Available electric energy, if any, will generally be offered at the prevailing market price, determined at the time of the request, to qualified Pacific Northwest entities. (snopud.com)
  • As provided in the policy, if no qualified regional entity accepts an offer made in this manner, then any surplus electric energy may then be made available for sale to out-of-region customers. (snopud.com)
  • Any surplus energy will be made available by the PUD at the Bonneville Power Administration Federal System or Northwest Hub. (snopud.com)
  • Please contact the Power Scheduling Office at (425) 783-1605 during business hours, for information on electric energy availability and pricing. (snopud.com)
  • Big Rivers Electric Corporation announced the Kentucky Public Service Commission's (PSC) approval of a ten-year power supply contract with the Kentucky Municipal Energy Agency (KyMEA). (kaec.org)
  • Jackson Purchase Energy Corp , Kenergy Corporation , and Meade County Rural Electric Cooperative Corporation . (kaec.org)
  • This contract will help stabilize power prices and ensure competitive rates for members of Kenergy, Jackson Purchase Energy Corporation and Meade County RECC. (kaec.org)
  • These member cooperatives deliver retail electric power and energy to more than 115,000 residential, commercial, and industrial customers in portions of 22 western Kentucky counties. (kaec.org)
  • Reliant Energy Power Generation, Inc. (findlaw.com)
  • Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances , televisions and electric lamps into a wall socket . (wikipedia.org)
  • In 1997 the energy production of the French Electricity Company EDF (Electricite de France) reached the value of 457.7 billion kWh, of which 82% is nuclear, 14% hydraulic and 4% classical thermal power. (osti.gov)
  • Chuck Zebula is responsible for AEP's Commercial Operations, AEP Energy, the company's retail marketing unit, and AEP Energy Partners, the company's wholesale power marketing unit. (aep.com)
  • misc{etde_6953918, title = {Solar powered vehicles: From dream to reality} author = {Not Available} abstractNote = {The initiatives of the 'Schweizer Vereinigung fuer Sonnenenergie' (Swiss Association for Solar Energy) has added new impetus worldwide for the utilisation of solar energy. (osti.gov)
  • Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices are described. (google.ca)
  • In one aspect, an electrical power distribution control method includes providing electrical energy from an electrical power distribution system, applying the electrical. (google.ca)
  • adjusting an amount of the electrical energy applied to the load responsive to an electrical characteristic of the electrical energy triggering one of the values of the threshold at the respective moment in time. (google.ca)
  • increasing an amount of the electrical energy to the load responsive to the length of time exceeding a time out. (google.ca)
  • This paper couples numerical simulation of time- and space-dependent weather with simulation of time-dependent power demand, storage, and demand response to provide low-cost solutions to the grid reliability problem with 100% penetration of WWS across all energy sectors in the continental United States between 2050 and 2055. (pnas.org)
  • Pure electric drive new energy bus with lithium iron phosphate power supply system-Henan Taihang Power Co. Ltd. (thdy.com)
  • This study demonstrates the potential of energy efficiency to offset some of the projected need for new electric generation as cutting-edge technologies become available and are adopted. (typepad.com)
  • For practical application of non-thermal plasma enhanced selective catalytic reduction of NO x for Diesel cars compact low cost power supplies are necessary, which enable efficient plasma generation. (sae.org)
  • Top:High-efficiency 600°C-class high-pressure turbine for thermal power generation. (hitachi.com)
  • From 1925 it formed an association with three other London companies to centralise electricity generation in the new, high thermal efficiency, power station at Barking. (wikipedia.org)
  • At the beginning of the twentieth century, steam was the main source of mechanical power. (encyclopedia.com)
  • and next-generation nuclear power plants with more effective resource use. (hitachi.com)
  • Even in the United States, where no new nuclear power plant has been built since 1973, plans are currently under consideration to build more than 30 new nuclear power plants. (hitachi.com)
  • The key topic of this study is to determine from which treatment plants water should be supplied, and through which supply stations it should be distributed. (iwaponline.com)
  • Dual-purpose electric fence energizer with external control and display panel gives you the option of powering up to 250 miles or 1,500 acres of clean fence by using the energizer as a 110V plug-in directly out of the box or as a battery/solar fencer. (enasco.com)
  • Introducing the 6V Solar Electric Fence Energizer with Battery Saver. (powerwizardinc.com)
  • Controlled Power Company, a U.S. manufacturer of a full line of power quality solutions for mission critical and life safety applications, announces the availability of its expanded EON™ Model EL3 three-phase centralized emergency lighting inverter product offering. (controlledpwr.com)
  • This was confirmed by Parliament in the Electric Lighting Orders Confirmation (No.6) Act 1892. (wikipedia.org)
  • Electricity was originally used for lighting but 'power' uses were soon established. (wikipedia.org)
  • 5. The arcing fault and ground fault detection system of claim 1 which includes a current-limiting resistor for limiting the current flow in said power supply in said second mode, and means for bypassing said current-limiting resistor in said first mode. (google.com)
  • 2. A system according to claim 1, which is integral with an on-board vehicle electric traction drive system. (patents.com)
  • 4. A system according to claim 1 including a timing means for controlling power transfer at selected times. (patents.com)
  • This study devised an optimal model of the 'route/flow decision problem' for minimizing power use in the water distribution system while meeting demand in the distributing areas, and formulated the model by means of mixed integer linear programming (MILP). (iwaponline.com)
  • To use this feature, you need to System.Web.UI.WebControls.HyperLink for a Customer Account with Elliott Electric Supply. (elliottelectric.com)
  • 2.6 Reliable three-level lightning protection system and electric insulation measure guarantee the safe operation of the system. (cncoslight.com)
  • The first European onshore power supply system of this type has a capacity of 12 megavolt amperes (MVA) and works with a patented, mobile robot arm designed specifically for the tidal range. (innovations-report.com)
  • The onshore power supply system from Siemens works with a patented, mobile robot arm designed specifically for the tidal range. (innovations-report.com)
  • As a result, the system is able not only to power an isolated network from a distribution grid but to harmonize power supply grids having different parameters and to connect them to each other. (innovations-report.com)
  • The air supply of a fuel cell is a very critical system. (tm4.com)
  • This paper presents a transcutaneous power supplied implantable electrical stimulation system. (hindawi.com)
  • To further refine the treatment technology for FGID and advance the clinical application of GES, this paper aimed to develop a complete implantable electrical stimulation system. (hindawi.com)
  • SA Power Networks has the advantage of an established vendor list, manufacturing plant, storage facility, distribution centre, and established processes so it is well-equipped to provide support. (industrysearch.com.au)
  • and control means responsive to the control signals and operatively coupled to the power transfer means for controlling the power passing between the battery and the power distribution network. (patents.com)
  • The purpose of this study is to propose the optimal water supply control and management plan for minimizing power usage by water distribution pumps. (iwaponline.com)
  • They offer the ideal solution in many space critical applications for board level power distribution. (tradeee.com)
  • Implementing the automation of electric distribution networks, from simple remote control to the application of software-based decision tools, requires many considerations, such as assessing costs, selecting the control infrastructure type and automation level, deciding on the ambition level, and justifying the solution through a business case. (routledge.com)
  • The U.S. Congress at the end of 2019 declined to extend the cap to 600,000 electric vehicles per carmaker. (yahoo.com)
  • Sales of electric and hybrid vehicles in 2019 dropped for the first time in more than two years as the subsidy cuts reached new levels and have continued falling since. (yahoo.com)
  • Electrical power wires are solid or stranded conductors surrounded by insulation, shielding, and a protective jacket. (globalspec.com)
  • One end has a female plug that fits all power supplies with a 5.5 x 2.1mm plug, the other end has bare wires to attached to your device. (frightprops.com)
  • Audio and radio signals carried on electrical wires are also examples of alternating current. (wikipedia.org)
  • A microprocessor control selects the correct tap, and makes a connection through high-powered electronic switching devices. (controlledpwr.com)
  • SA Power Networks operate in markets across Australia providing solutions to electricity utilities, mining and telecommunications industries, land developers, infrastructure providers as well as commercial and industrial consumers. (industrysearch.com.au)
  • The power supply enclosures are made out of stainless steel and suitable for external use. (ritherdon.co.uk)
  • By featuring an improved T4 rating the SDN 40-24-100C is now suitable for a broader range of hazardous locations, giving engineers more choices in power supplies. (electricsmarts.com)
  • Power supplies are suitable for security, audio video and building automation. (thomasnet.com)
  • Hammer, T., "Pulsed Electrical Excitation of Dielectric Barrier Discharge Reactors using Semiconductor Power Supplies," SAE Technical Paper 2000-01-2894, 2000, https://doi.org/10.4271/2000-01-2894 . (sae.org)
  • We help utilities and independent power producers to become world-class purchasing leaders by adopting advanced procurement and supply-management capabilities across all materials, services, operating, and capital-spending categories. (mckinsey.com)
  • Assesses an institution's performance and health in procurement and supply management. (mckinsey.com)
  • SA Power Networks's solutions are completely customised, they can manage your entire supply chain, or just the areas such as logistics, inventory management or procurement. (industrysearch.com.au)
  • Nuclear power generation is currently undergoing a renaissance. (hitachi.com)
  • Three-phase electrical generation is very common. (wikipedia.org)
  • The Tucson Fuel Cell maintains the day-to-day flexibility of the gasoline-powered Tucson so that its driver is able to immediately enjoy the next generation of electric vehicles without range or recharge-time compromises to their lifestyle. (hyundai.com)
  • This award validates our belief that hydrogen-powered fuel cells are the next-generation of zero-emission vehicle technology. (hyundai.com)
  • This announcement follows the launch of Ballard's seventh generation FCvelocity®-HD7 power module at the 2015 UITP World Congress and Exhibition in Milan, Italy. (tm4.com)
  • We are pleased to be working with Ballard on their new generation of FCvelocity®-HD7 power module," said Robert Baril, TM4's Chief Operating Officer. (tm4.com)
  • The large-scale conversion to 100% wind, water, and solar (WWS) power for all purposes (electricity, transportation, heating/cooling, and industry) is currently inhibited by a fear of grid instability and high cost due to the variability and uncertainty of wind and solar. (pnas.org)
  • This study addresses the greatest concern facing the large-scale integration of wind, water, and solar (WWS) into a power grid: the high cost of avoiding load loss caused by WWS variability and uncertainty. (pnas.org)
  • AC-DC Power Supplies feature input to output isolation of 4kVac. (thomasnet.com)
  • 0RQB-D0W12LG DC/DC Converter measures 62 x 37 x 15 mm dimensions and delivers 200 W of 12 V regulated output power. (thomasnet.com)
  • It describes the ability of WWS installations, determined consistently over each of the 48 contiguous United States (CONUS) and with wind and solar power output predicted in time and space with a 3D climate/weather model, accounting for extreme variability, to provide time-dependent load reliably and at low cost when combined with storage and demand response (DR) for the period 2050-2055, when a 100% WWS world may exist. (pnas.org)
  • The electricity output was: The Drakelow power stations had a workforce of hundreds of people. (wikipedia.org)
  • BALTIMORE--( BUSINESS WIRE )--The Potomac Edison Company (PE), Baltimore Gas and Electric Company (BGE), Delmarva Power, and Pepco have issued Requests for Proposals (RFPs) for full-requirements, wholesale electric power supply to meet their Standard Offer Service (SOS) obligations in their Maryland service territories. (businesswire.com)
  • SA Power Networks's business operates as a single business under the joint ownership of Cheung Kong Infrastructure Holdings Limited, Hong Kong Electric Holdings Limited and the publically listed Australian infrastructure company, Spark Infrastructure Limited. (industrysearch.com.au)
  • they claimed that FERC lacked authority to regulate demand response transactions and that even if they did have the power to do so, FERC failed to justify why demand response providers and electricity producers should receive the same compensation. (wikipedia.org)
  • Writing for a majority of the Court, Justice Elena Kagan ruled that FERC possessed the "requisite statutory power" to regulate demand response transactions and that FERC adequately justified why demand response providers and electricity producers should receive the same compensation. (wikipedia.org)
  • That's really what "power factor correction" standards regulate. (stackexchange.com)
  • The DC is fed into inverter either from rectifier when main supply is ON or from battery bank when it is OFF a ripple free AC can be obtained by using filter circuit. (expertsmind.com)
  • In addition to the agreements with Big Rivers, the KyMEA entered into power supply contracts with the Illinois Power Marketing Company, a subsidiary of Dynegy, and the Electric Plant Board of the City of Paducah. (kaec.org)
  • Dynegy Power Marketing, Inc. (findlaw.com)
  • SA Power Networks Construction and Maintenance Services group is dedicated exclusively to the development of businesses unregulated activities, and maintains a focused approach towards delivering customer projects in a timely, efficient and professional manner. (industrysearch.com.au)
  • Our Industrial DC Power Supplies' durability and performance maximize end-user productivity and minimize downtime! (controlledpwr.com)
  • The nuclear power figure includes domestic reprocessing of spent fuel currently being planned, 'pluthermal' use (assuming plutonium is recycled once), and highly radioactive waste disposal. (hitachi.com)
  • According to an article in New Scientist, materials that directly convert radiation into electricity could produce a new era of spacecraft and even Earth-based vehicles powered by high-powered nuclear batteries, say US researchers. (typepad.com)