National Library of Energy BETA

Sample records for fuel cells water

  1. Fuel cell water transport

    DOE Patents [OSTI]

    Vanderborgh, Nicholas E.; Hedstrom, James C.

    1990-01-01

    The moisture content and temperature of hydrogen and oxygen gases is regulated throughout traverse of the gases in a fuel cell incorporating a solid polymer membrane. At least one of the gases traverses a first flow field adjacent the solid polymer membrane, where chemical reactions occur to generate an electrical current. A second flow field is located sequential with the first flow field and incorporates a membrane for effective water transport. A control fluid is then circulated adjacent the second membrane on the face opposite the fuel cell gas wherein moisture is either transported from the control fluid to humidify a fuel gas, e.g., hydrogen, or to the control fluid to prevent excess water buildup in the oxidizer gas, e.g., oxygen. Evaporation of water into the control gas and the control gas temperature act to control the fuel cell gas temperatures throughout the traverse of the fuel cell by the gases.

  2. Water reactive hydrogen fuel cell power system

    DOE Patents [OSTI]

    Wallace, Andrew P; Melack, John M; Lefenfeld, Michael

    2014-01-21

    A water reactive hydrogen fueled power system includes devices and methods to combine reactant fuel materials and aqueous solutions to generate hydrogen. The generated hydrogen is converted in a fuel cell to provide electricity. The water reactive hydrogen fueled power system includes a fuel cell, a water feed tray, and a fuel cartridge to generate power for portable power electronics. The removable fuel cartridge is encompassed by the water feed tray and fuel cell. The water feed tray is refillable with water by a user. The water is then transferred from the water feed tray into a fuel cartridge to generate hydrogen for the fuel cell which then produces power for the user.

  3. Water reactive hydrogen fuel cell power system

    SciTech Connect (OSTI)

    Wallace, Andrew P; Melack, John M; Lefenfeld, Michael

    2014-11-25

    A water reactive hydrogen fueled power system includes devices and methods to combine reactant fuel materials and aqueous solutions to generate hydrogen. The generated hydrogen is converted in a fuel cell to provide electricity. The water reactive hydrogen fueled power system includes a fuel cell, a water feed tray, and a fuel cartridge to generate power for portable power electronics. The removable fuel cartridge is encompassed by the water feed tray and fuel cell. The water feed tray is refillable with water by a user. The water is then transferred from the water feed tray into the fuel cartridge to generate hydrogen for the fuel cell which then produces power for the user.

  4. Water Emissions from Fuel Cell Vehicles | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cells Water Emissions from Fuel Cell Vehicles Water Emissions from Fuel Cell Vehicles Hydrogen fuel cell vehicles (FCVs) emit approximately the same amount of water per ...

  5. Water Emissions from Fuel Cell Vehicles

    Broader source: Energy.gov [DOE]

    Hydrogen fuel cell vehicles (FCVs) emit approximately the same amount of water per mile as vehicles using gasoline-powered internal combustion engines (ICEs).

  6. Visualization of Fuel Cell Water Transport and Characterization...

    Broader source: Energy.gov (indexed) [DOE]

    presentation, which focuses on fuel cell water transport, was given by Satish Kandlikar at a ... Startup and Operation Water Transport in PEM Fuel Cells: Advanced Modeling, Material ...

  7. Visualization of Fuel Cell Water Transport and Performance Characteriz...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Visualization of Fuel Cell Water Transport and Performance Characterization under Freezing ... More Documents & Publications Visualization of Fuel Cell Water Transport and ...

  8. Water injected fuel cell system compressor

    DOE Patents [OSTI]

    Siepierski, James S.; Moore, Barbara S.; Hoch, Martin Monroe

    2001-01-01

    A fuel cell system including a dry compressor for pressurizing air supplied to the cathode side of the fuel cell. An injector sprays a controlled amount of water on to the compressor's rotor(s) to improve the energy efficiency of the compressor. The amount of water sprayed out the rotor(s) is controlled relative to the mass flow rate of air inputted to the compressor.

  9. Water Outlet Control Mechanism for Fuel Cell System Operation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Find More Like This Return to Search Water Outlet Control Mechanism for Fuel Cell System Operation in Variable Gravity Environments Self-Regulating Water Separation System for Fuel ...

  10. Water Transport in PEM Fuel Cells: Advanced Modeling, Material Selection,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Testing and Design Optimization | Department of Energy in PEM Fuel Cells: Advanced Modeling, Material Selection, Testing and Design Optimization Water Transport in PEM Fuel Cells: Advanced Modeling, Material Selection, Testing and Design Optimization Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 2_cfd.pdf (21.58 KB) More Documents & Publications Fuel Cell Kickoff Meeting Agenda Water Transport in PEM Fuel Cells: Advanced Modeling, Material

  11. Visualization of Fuel Cell Water Transport and Characterization under

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Freezing Conditions | Department of Energy Visualization of Fuel Cell Water Transport and Characterization under Freezing Conditions Visualization of Fuel Cell Water Transport and Characterization under Freezing Conditions This presentation, which focuses on fuel cell water transport, was given by Satish Kandlikar at a DOE fuel cell meeting in February 2007. new_fc_kandlikar_rit.pdf (1.18 MB) More Documents & Publications Water Transport Exploratory Studies Fundamental Issues in Subzero

  12. Visualization of Fuel Cell Water Transport and Performance Characterization

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    under Freezing Conditions | Department of Energy Visualization of Fuel Cell Water Transport and Performance Characterization under Freezing Conditions Visualization of Fuel Cell Water Transport and Performance Characterization under Freezing Conditions Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 2_rit.pdf (20.71 KB) More Documents & Publications Visualization of Fuel Cell Water Transport and Characterization under Freezing Conditions

  13. Water-retaining Polymer Membranes for Fuel Cell Applications...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Water-retaining Polymer Membranes for Fuel Cell Applications Lawrence Berkeley National Laboratory Contact LBL About This Technology Water uptake results from PSS-PMBs as a function ...

  14. Water Transport in PEM Fuel Cells: Advanced Modeling, Material...

    Broader source: Energy.gov (indexed) [DOE]

    in PEM fuel cells, was given by CFDRC's J. Vernon Cole at a DOE fuel cell meeting in February 2007. newfccolecfd.pdf (976.38 KB) More Documents & Publications Water Transport in ...

  15. Water Transport in PEM Fuel Cells: Advanced Modeling, Material Selection, Testing, and Design Optimization

    Broader source: Energy.gov [DOE]

    This presentation, which focuses on water transport in PEM fuel cells, was given by CFDRC's J. Vernon Cole at a DOE fuel cell meeting in February 2007.

  16. Produced Water Treatment Using Microbial Fuel Cell Technology

    SciTech Connect (OSTI)

    Borole, A. P.; Campbell, R.

    2011-05-20

    ORNL has developed a treatment for produced water using a combination of microbial fuel cells and electrosorption. A collaboration between Campbell Applied Physics and ORNL was initiated to further investigate development of the technology and apply it to treatment of field produced water. The project successfully demonstrated the potential of microbial fuel cells to generate electricity from organics in produced water. A steady voltage was continuously generated for several days using the system developed in this study. In addition to the extraction of electrical energy from the organic contaminants, use of the energy at the representative voltage was demonstrated for salts removal or desalination of the produced water. Thus, the technology has potential to remove organic as well as ionic contaminants with minimal energy input using this technology. This is a novel energy-efficient method to treat produced water. Funding to test the technology at larger scale is being pursued to enable application development.

  17. Water Transport in PEM Fuel Cells: Advanced Modeling, Material...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    in PEM Fuel Cells: Advanced Modeling, Material Selection, Testing and Design Optimization ... Optimization Part of a 100 million fuel cell award announced by DOE Secretary Bodman on ...

  18. Gas block mechanism for water removal in fuel cells

    DOE Patents [OSTI]

    Issacci, Farrokh; Rehg, Timothy J.

    2004-02-03

    The present invention is directed to apparatus and method for cathode-side disposal of water in an electrochemical fuel cell. There is a cathode plate. Within a surface of the plate is a flow field comprised of interdigitated channels. During operation of the fuel cell, cathode gas flows by convection through a gas diffusion layer above the flow field. Positioned at points adjacent to the flow field are one or more porous gas block mediums that have pores sized such that water is sipped off to the outside of the flow field by capillary flow and cathode gas is blocked from flowing through the medium. On the other surface of the plate is a channel in fluid communication with each porous gas block mediums. The method for water disposal in a fuel cell comprises installing the cathode plate assemblies at the cathode sides of the stack of fuel cells and manifolding the single water channel of each of the cathode plate assemblies to the coolant flow that feeds coolant plates in the stack.

  19. The importance of water control to PEM fuel cell performance

    SciTech Connect (OSTI)

    Cisar, A.; Murphy, O.J.; Simpson, S.F.

    1996-12-31

    All membranes currently in use in polymer electrolyte membrane (PEM) fuel cells have sulfonate (-SO{sub 3}{sup -}) groups as the anionic functionalities attached to the backbone of the polymer electrolyte. As a consequence of this fact, all PEM membranes depend on the presence of water in the electrolyte to facilitate proton transport. This includes perfluorinated membranes, such as Nafion{reg_sign} (DuPont), and Gore Select{trademark} (W. L. Gore), partially fluorinated membranes, such as the Ballard membrane, which is a derivatized trifluorostyrene, non-fluorinated membranes, including both sulfonated polyparaphenylene (Maxdem`s Poly-X{trademark}) and sulfonated styrene-butadiene (DAIS), and the various grafted materials that have been described in the literature. In every case, without water, the proton conductivity of the membrane is insufficient to support fuel cell operation.

  20. Microbial fuel cell treatment of ethanol fermentation process water

    DOE Patents [OSTI]

    Borole, Abhijeet P.

    2012-06-05

    The present invention relates to a method for removing inhibitor compounds from a cellulosic biomass-to-ethanol process which includes a pretreatment step of raw cellulosic biomass material and the production of fermentation process water after production and removal of ethanol from a fermentation step, the method comprising contacting said fermentation process water with an anode of a microbial fuel cell, said anode containing microbes thereon which oxidatively degrade one or more of said inhibitor compounds while producing electrical energy or hydrogen from said oxidative degradation, and wherein said anode is in electrical communication with a cathode, and a porous material (such as a porous or cation-permeable membrane) separates said anode and cathode.

  1. Fuel from Bacteria, CO2, Water, and Solar Energy: Engineering a Bacterial Reverse Fuel Cell

    SciTech Connect (OSTI)

    2010-07-01

    Electrofuels Project: Harvard is engineering a self-contained, scalable Electrofuels production system that can directly generate liquid fuels from bacteria, carbon dioxide (CO2), water, and sunlight. Harvard is genetically engineering bacteria called Shewanella, so the bacteria can sit directly on electrical conductors and absorb electrical current. This current, which is powered by solar panels, gives the bacteria the energy they need to process CO2 into liquid fuels. The Harvard team pumps this CO2 into the system, in addition to water and other nutrients needed to grow the bacteria. Harvard is also engineering the bacteria to produce fuel molecules that have properties similar to gasoline or diesel fuelmaking them easier to incorporate into the existing fuel infrastructure. These molecules are designed to spontaneously separate from the water-based culture that the bacteria live in and to be used directly as fuel without further chemical processing once theyre pumped out of the tank.

  2. Fuel Cell Animation- Fuel Cell Stack (Text Version)

    Broader source: Energy.gov [DOE]

    This text version of the fuel cell animation demonstrates how a fuel cell uses hydrogen to produce electricity, with only water and heat as byproducts.

  3. Fuel Cell Animation- Fuel Cell Components (Text Version)

    Broader source: Energy.gov [DOE]

    This text version of the fuel cell animation demonstrates how a fuel cell uses hydrogen to produce electricity, with only water and heat as byproducts.

  4. LOS ANGELES DEPARTMENT OF WATER AND POWER FUEL CELL DEMONSTRATION PROJECT

    SciTech Connect (OSTI)

    William W. Glauz

    2004-03-26

    The Los Angeles Department of Water and Power (LADWP) is currently one of the most active electric utility companies in deploying fuel cell technology. Fuel cells offer many benefits and are now used as an alternative to traditional internal combustion engines in power generation. In continuing it's role as the leader in fuel cell deploying, LADWP installed a Phosphoric Acid Fuel Cell (PAFC) in February 2002 at its Main Street service center. The goal of this project is to evaluate the PAFC's performance and cost benefits. This will provide LADWP an insight for future deployment of fuel cell technology. The fuel cell ran smoothly through the first year of operation with very high efficiency and availability, and only with some minor setbacks. The Main street fuel cell project is funded by LADWP with partial grant funding from the Department of Defense's Climate Change Fuel Cell Buydown Program. The technical evaluation and the benefit-cost evaluation of the Main Street fuel cell are both examined in this report.

  5. Final Report: Development of a Thermal and Water Management System for PEM Fuel Cell

    SciTech Connect (OSTI)

    Zia Mirza, Program Manager

    2011-12-06

    This final program report is prepared to provide the status of program activities performed over the period of 9 years to develop a thermal and water management (TWM) system for an 80-kW PEM fuel cell power system. The technical information and data collected during this period are presented in chronological order by each calendar year. Balance of plant (BOP) components of a PEM fuel cell automotive system represents a significant portion of total cost based on the 2008 study by TIAX LLC, Cambridge, MA. The objectives of this TWM program were two-fold. The first objective was to develop an advanced cooling system (efficient radiator) to meet the fuel cell cooling requirements. The heat generated by the fuel cell stack is a low-quality heat (small difference between fuel cell stack operating temperature and ambient air temperature) that needs to be dissipated to the ambient air. To minimize size, weight, and cost of the radiator, advanced fin configurations were evaluated. The second objective was to evaluate air humidification systems which can meet the fuel cell stack inlet air humidity requirements. The moisture from the fuel cell outlet air is transferred to inlet air, thus eliminating the need for an outside water source. Two types of humidification devices were down-selected: one based on membrane and the other based on rotating enthalpy wheel. The sub-scale units for both of these devices have been successfully tested by the suppliers. This project addresses System Thermal and Water Management.

  6. Fuel Cell Technologies Budget

    SciTech Connect (OSTI)

    EERE

    2012-03-16

    The Fuel Cell Technologies Office receives appropriations from Energy and Water Development. The offices's major activities and budget are outlined in this Web page.

  7. Elucidating through-plane liquid water profile in a polymer electrolyte membrane fuel cell.

    SciTech Connect (OSTI)

    Wang, Yun; Chen, Ken Shuang

    2010-10-01

    In this paper, a numerical model incorporating micro-porous layers (MPLs) is presented for simulating water transport within the gas diffusion layers (GDLs) and MPLs as well as across their interfaces in a polymer electrolyte membrane (PEM) fuel cell. One-dimensional analysis is conducted to investigate the impacts of MPL and GDL properties on the liquid-water profile across the anode GDL-MPL and cathode MPL-GDL regions. Furthermore, two-dimensional numerical simulations that take MPLs into account are also carried out to elucidate liquid water transport, particularly through-plane liquid-water profile in a PEM fuel cell. Results from case studies are presented.

  8. WaterTransport in PEM Fuel Cells: Advanced Modeling, Material Selection, Testing and Design Optimization

    SciTech Connect (OSTI)

    J. Vernon Cole; Abhra Roy; Ashok Damle; Hari Dahr; Sanjiv Kumar; Kunal Jain; Ned Djilai

    2012-10-02

    Water management in Proton Exchange Membrane, PEM, Fuel Cells is challenging because of the inherent conflicts between the requirements for efficient low and high power operation. Particularly at low powers, adequate water must be supplied to sufficiently humidify the membrane or protons will not move through it adequately and resistance losses will decrease the cell efficiency. At high power density operation, more water is produced at the cathode than is necessary for membrane hydration. This excess water must be removed effectively or it will accumulate in the Gas Diffusion Layers, GDLs, between the gas channels and catalysts, blocking diffusion paths for reactants to reach the catalysts and potentially flooding the electrode. As power density of the cells is increased, the challenges arising from water management are expected to become more difficult to overcome simply due to the increased rate of liquid water generation relative to fuel cell volume. Thus, effectively addressing water management based issues is a key challenge in successful application of PEMFC systems. In this project, CFDRC and our partners used a combination of experimental characterization, controlled experimental studies of important processes governing how water moves through the fuel cell materials, and detailed models and simulations to improve understanding of water management in operating hydrogen PEM fuel cells. The characterization studies provided key data that is used as inputs to all state-of-the-art models for commercially important GDL materials. Experimental studies and microscopic scale models of how water moves through the GDLs showed that the water follows preferential paths, not branching like a river, as it moves toward the surface of the material. Experimental studies and detailed models of water and airflow in fuel cells channels demonstrated that such models can be used as an effective design tool to reduce operating pressure drop in the channels and the associated

  9. Visualization of Fuel Cell Water Transport and Characterization under Freezing Conditions

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Visualization of Fuel Cell Water Transport and Characterization under Freezing Conditions Project Sponsored by: Department of Energy Satish Kandlikar, RIT Thomas Trabold, GM Jeffrey Allen, MTU February 13, 2007 This presentation does not contain any proprietary or confidential information. Water Management Issues, PEMFC Excessive Water -Block reaction sites -Saturate diffusion media -Clog gas channels Zhang et al., 2006. Yamada et al., 2006. Insufficient Water - Reduced Membrane proton

  10. Fuel Cells

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and robust solid oxide fuel cell (SOFC) system. Specific objectives include achieving an efficiency of greater than 60 percent, meeting a stack cost target of 175 per kW, and ...

  11. Microbial Fuel Cells for Recycle of Process Water from Cellulosic Ethanol

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Biorefineries - Energy Innovation Portal Microbial Fuel Cells for Recycle of Process Water from Cellulosic Ethanol Biorefineries Oak Ridge National Laboratory Contact ORNL About This Technology Technology Marketing SummaryA method was invented at ORNL for removing inhibitor compounds from process water in biomass-to-ethanol production. This invention can also be used to produce power for other industrial processes. DescriptionLarge amounts of water are used in the processing of cellulosic

  12. Water Transport in PEM Fuel Cells: Advanced Modeling, Material...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    This presentation does not contain any proprietary or confidential information. Background Water Management Issues Arise From: Generation of water by cathodic reaction ...

  13. Fuel Cell Animation | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Animation Fuel Cell Animation This fuel cell animation demonstrates how a fuel cell uses hydrogen to produce electricity, with only water and heat as byproducts. Hydrogen fuel cell vehicles emit approximately the same amount of water per mile as conventional vehicles powered by internal combustion engines. Learn more about water emissions from fuel cell vehicles. View text version of animation.

  14. Abstract: Air, Thermal and Water Management for PEM Fuel Cell Systems

    SciTech Connect (OSTI)

    Mark K. Gee Zia Mirza

    2008-10-01

    PEM fuel cells are excellent candidates for transportation applications due to their high efficiencies. PEM fuel cell Balance of Plant (BOP) components, such as air, thermal, and water management sub-systems, can have a significant effect on the overall system performance, but have traditionally not been addressed in research and development efforts. Recognizing this, the U.S. Department of Energy and Honeywell International Inc. are funding an effort that emphasizes the integration and optimization of air, thermal and water management sub-systems. This effort is one of the major elements to assist the fuel cell system developers and original equipment manufacturers to achieve the goal of an affordable and efficient power system for transportation applications. Past work consisted of: (1) Analysis, design, and fabrication of a motor driven turbocompressor. (2) A systematic trade study to select the most promising water and thermal management systems from five different concepts (absorbent wheel humidifier, gas to gas membrane humidifier, porous metal foam humidifier, cathode recycle compressor, and water injection pump.) This presentation will discuss progress made in the research and development of air, water and thermal management sub-systems for PEM fuel cell systems in transportation applications. More specifically, the presentation will discuss: (1) Progress of the motor driven turbocompressor design and testing; (2) Progress of the humidification component selection and testing; and (3) Progress of the thermal management component preliminary design. The programs consist of: (1) The analysis, design, fabrication and testing of a compact motor driven turbocompressor operating on foil air bearings to provide contamination free compressed air to the fuel cell stack while recovering energy from the exhaust streams to improve system efficiency. (2) The analysis, design, fabrication and testing of selected water and thermal management systems and components to

  15. Water Transport Characteristics of Gas Diffusion Layer in a PEM Fuel Cell

    SciTech Connect (OSTI)

    Damle, Ashok S; Cole, J Vernon

    2008-11-01

    A presentation addressing the following: Water transport in PEM Fuel Cells - a DoE Project 1. Gas Diffusion Layer--Role and Characteristics 2. Capillary Pressure Determinations of GDL Media 3. Gas Permeability Measurements of GDL Media 4. Conclusions and Future Activities

  16. Fuel Cells | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cells Fuel Cells A fuel cell uses the chemical energy of hydrogen or another fuel to cleanly and efficiently produce electricity. If hydrogen is the fuel, electricity, water, and heat are the only products. Fuel cells are unique in terms of the variety of their potential applications; they can provide power for systems as large as a utility power station and as small as a laptop computer. Why Study Fuel Cells Fuel cells can be used in a wide range of applications, including transportation,

  17. Fuel cell-fuel cell hybrid system

    DOE Patents [OSTI]

    Geisbrecht, Rodney A.; Williams, Mark C.

    2003-09-23

    A device for converting chemical energy to electricity is provided, the device comprising a high temperature fuel cell with the ability for partially oxidizing and completely reforming fuel, and a low temperature fuel cell juxtaposed to said high temperature fuel cell so as to utilize remaining reformed fuel from the high temperature fuel cell. Also provided is a method for producing electricity comprising directing fuel to a first fuel cell, completely oxidizing a first portion of the fuel and partially oxidizing a second portion of the fuel, directing the second fuel portion to a second fuel cell, allowing the first fuel cell to utilize the first portion of the fuel to produce electricity; and allowing the second fuel cell to utilize the second portion of the fuel to produce electricity.

  18. Hydrogen and Fuel Cell Technologies Program: Fuel Cells Fact...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hydrogen and Fuel Cell Technologies Program: Fuel Cells Fact Sheet Hydrogen and Fuel Cell Technologies Program: Fuel Cells Fact Sheet Fact sheet produced by the Fuel Cell ...

  19. Hydrogen & Fuel Cells

    Broader source: Energy.gov [DOE]

    Hydrogen is an energy carrier that can be produced from clean, diverse and abundant domestic energy resources. Fuel cells use the energy from hydrogen in a highly efficient way -- with only water and heat as byproducts.

  20. 2009 Fuel Cell Market Report

    Fuel Cell Technologies Publication and Product Library (EERE)

    Fuel cells are electrochemical devices that combine hydrogen and oxygen to produce electricity, water, and heat. Unlike batteries, fuel cells continuously generate electricity, as long as a source of

  1. 2009 Fuel Cell Market Report

    SciTech Connect (OSTI)

    Vincent, Bill; Gangi, Jennifer; Curtin, Sandra; Delmont, Elizabeth

    2010-11-01

    Fuel cells are electrochemical devices that combine hydrogen and oxygen to produce electricity, water, and heat. Unlike batteries, fuel cells continuously generate electricity, as long as a source of fuel is supplied. Moreover, fuel cells do not burn fuel, making the process quiet, pollution-free and two to three times more efficient than combustion. Fuel cell systems can be a truly zero-emission source of electricity, if the hydrogen is produced from non-polluting sources. Global concerns about climate change, energy security, and air pollution are driving demand for fuel cell technology. More than 630 companies and laboratories in the United States are investing $1 billion a year in fuel cells or fuel cell component technologies. This report provides an overview of trends in the fuel cell industry and markets, including product shipments, market development, and corporate performance. It also provides snapshots of select fuel cell companies, including general.

  2. Regenerative Fuel Cells: Renewable Energy Storage Devices Based on Neutral Water Input

    SciTech Connect (OSTI)

    2010-09-01

    GRIDS Project: Proton Energy Systems is developing an energy storage device that converts water to hydrogen fuel when excess electricity is available, and then uses hydrogen to generate electricity when energy is needed. The system includes an electrolyzer, which generates and separates hydrogen and oxygen for storage, and a fuel cell which converts the hydrogen and oxygen back to electricity. Traditional systems use acidic membranes, and require expensive materials including platinum and titanium for key parts of the system. In contrast, Proton Energy Systems’ new system will use an inexpensive alkaline membrane and will contain only inexpensive metals such as nickel and stainless steel. If successful, Proton Energy Systems’ system will have similar performance to today’s regenerative fuel cell systems at a fraction of the cost, and can be used to store electricity on the electric grid.

  3. Low cost fuel cell diffusion layer configured for optimized anode water management

    DOE Patents [OSTI]

    Owejan, Jon P; Nicotera, Paul D; Mench, Matthew M; Evans, Robert E

    2013-08-27

    A fuel cell comprises a cathode gas diffusion layer, a cathode catalyst layer, an anode gas diffusion layer, an anode catalyst layer and an electrolyte. The diffusion resistance of the anode gas diffusion layer when operated with anode fuel is higher than the diffusion resistance of the cathode gas diffusion layer. The anode gas diffusion layer may comprise filler particles having in-plane platelet geometries and be made of lower cost materials and manufacturing processes than currently available commercial carbon fiber substrates. The diffusion resistance difference between the anode gas diffusion layer and the cathode gas diffusion layer may allow for passive water balance control.

  4. Lattice cell and full core physics of internally cooled annular fuel in heavy water moderated reactors

    SciTech Connect (OSTI)

    Armstrong, J.; Hamilton, H.; Hyland, B.

    2013-07-01

    A program is underway at Atomic Energy of Canada Limited (AECL) to develop a new fuel bundle concept to enable greater burnups for PT-HWR (pressure tube heavy water reactor) cores. One option that AECL is investigating is an internally cooled annular fuel (ICAF) element concept. ICAF contains annular cylindrical pellets with cladding on the inner and outer diameters. Coolant flows along the outside of the element and through the centre. With such a concept, the maximum fuel temperature as a function of linear element rating is significantly reduced compared to conventional, solid-rod type fuel. The preliminary ICAF bundle concept considered in this study contains 24 half-metre long internally cooled annular fuel elements and one non-fuelled centre pin. The introduction of the non-fuelled centre pin reduces the coolant void reactivity (CVR), which is the increase in reactivity that occurs on voiding the coolant in accident scenarios. Lattice cell and full core physics calculations of the preliminary ICAF fuel bundle concept have been performed for medium burnups of approximately 18 GWd/tU using WIMS-AECL and reactor fuel simulation program (RFSP). The results will be used to assist in concept configuration optimization. The effects of radial and axial core power distributions, linear element power ratings, refuelling rates and operational power ramps have been analyzed. The results suggest that burnups of greater than 18 GWd/tU can be achieved in current reactor designs. At approximately 18 GWd/tU, expected maximum linear element ratings in a PT-HWR with online-refuelling are approximately 90 kW/m. These conditions would be prohibitive for solid-rod fuel, but may be possible in ICAF fuel given the reduced maximum fuel temperature as a function of linear element rating. (authors)

  5. Fuel Cell Animation- Chemical Process (Text Version)

    Broader source: Energy.gov [DOE]

    This text version of the fuel cell animation demonstrates how a fuel cell uses hydrogen to produce electricity, with only water and heat as byproducts.

  6. Understanding the Effects of Compression and Constraints on Water Uptake of Fuel-Cell Membranes

    SciTech Connect (OSTI)

    Kusoglu, Ahmet; Kienitz, Brian L.; Weber, Adam Z.

    2011-01-01

    Accurate characterization of polymer-electrolyte fuel cells (PEFCs) requires understanding the impact of mechanical and electrochemical loads on cell components. An essential aspect of this relationship is the effect of compression on the polymer membrane?s water-uptake behavior and transport properties. However, there is limited information on the impact of physical constraints on membrane properties. In this paper, we investigate both theoretically and experimentally how the water uptake of Nafion membrane changes under external compression loads. The swelling of a compressed membrane is modeled by modifying the swelling pressure in the polymer backbone which relies on the changes in the microscopic volume of the polymer. The model successfully predicts the water content of the compressed membrane measured through in-situ swelling-compression tests and neutron imaging. The results show that external mechanical loads could reduce the water content and conductivity of the membrane, especially at lower temperatures, higher humidities, and in liquid water. The modeling framework and experimental data provide valuable insight for the swelling and conductivity of constrained and compressed membranes, which are of interest in electrochemical devices such as batteries and fuel cells.

  7. Liquid-Water Uptake and Removal in PEM Fuel-Cell Components

    SciTech Connect (OSTI)

    Das, Prodip K.; Gunterman, Haluna P.; Kwong, Anthony; Weber, Adam Z.

    2011-09-23

    Management of liquid water is critical for optimal fuel-cell operation, especially at low temperatures. It is therefore important to understand the wetting properties and water holdup of the various fuel-cell layers. While the gas-diffusion layer is relatively hydrophobic and exhibits a strong intermediate wettability, the catalyst layer is predominantly hydrophilic. In addition, the water content of the ionomer in the catalyst layer is lower than that of the bulk membrane, and is affected by platinum surfaces. Liquid-water removal occurs through droplets on the surface of the gas-diffusion layer. In order to predict droplet instability and detachment, a force balance is used. While the pressure or drag force on the droplet can be derived, the adhesion or surface-tension force requires measurement using a sliding-angle approach. It is shown that droplets produced by forcing water through the gas-diffusion layer rather than placing them on top of it show much stronger adhesion forces owing to the contact to the subsurface water.

  8. Bipolar fuel cell

    DOE Patents [OSTI]

    McElroy, James F.

    1989-01-01

    The present invention discloses an improved fuel cell utilizing an ion transporting membrane having a catalytic anode and a catalytic cathode bonded to opposite sides of the membrane, a wet-proofed carbon sheet in contact with the cathode surface opposite that bonded to the membrane and a bipolar separator positioned in electrical contact with the carbon sheet and the anode of the adjacent fuel cell. Said bipolar separator and carbon sheet forming an oxidant flowpath, wherein the improvement comprises an electrically conductive screen between and in contact with the wet-proofed carbon sheet and the bipolar separator improving the product water removal system of the fuel cell.

  9. Visualization of Fuel Cell Water Transport and Performance Characterization under Freezing Conditions

    SciTech Connect (OSTI)

    Kandlikar, S.G.; Lu, Z.; Rao, N.; Sergi, J.; Rath, C.; Dade, C.; Trabold, T.; Owejan, J.; Gagliardo, J.; Allen, J.; Yassar, R.S.; Medici, E.; Herescu, A.

    2010-05-30

    In this program, Rochester Institute of Technology (RIT), General Motors (GM) and Michigan Technological University (MTU) have focused on fundamental studies that address water transport, accumulation and mitigation processes in the gas diffusion layer and flow field channels of the bipolar plate. These studies have been conducted with a particular emphasis on understanding the key transport phenomena which control fuel cell operation under freezing conditions. Technical accomplishments are listed below: • Demonstrated that shutdown air purge is controlled predominantly by the water carrying capacity of the purge stream and the most practical means of reducing the purge time and energy is to reduce the volume of liquid water present in the fuel cell at shutdown. The GDL thermal conductivity has been identified as an important parameter to dictate water accumulation within a GDL. • Found that under the normal shutdown conditions most of the GDL-level water accumulation occurs on the anode side and that the mass transport resistance of the membrane electrode assembly (MEA) thus plays a critically important role in understanding and optimizing purge. • Identified two-phase flow patterns (slug, film and mist flow) in flow field channel, established the features of each pattern, and created a flow pattern map to characterize the two-phase flow in GDL/channel combination. • Implemented changes to the baseline channel surface energy and GDL materials and evaluated their performance with the ex situ multi-channel experiments. It was found that the hydrophilic channel (contact angle   10⁰) facilitates the removal of liquid water by capillary effects and by reducing water accumulation at the channel exit. It was also found that GDL without MPL promotes film flow and shifts the slug-to-film flow transition to lower air flow rates, compared with the case of GDL with MPL. • Identified a new mechanism of water transport through GDLs based on Haines jump

  10. Interactions between liquid-water and gas-diffusion layers in polymer-electrolyte fuel cells

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Das, Prodip K.; Santamaria, Anthony D.; Weber, Adam Z.

    2015-06-11

    Over the past few decades, a significant amount of research on polymer-electrolyte fuel cells (PEFCs) has been conducted to improve performance and durability while reducing the cost of fuel cell systems. However, the cost associated with the platinum (Pt) catalyst remains a barrier to their commercialization and PEFC durability standards have yet to be established. An effective path toward reducing PEFC cost is making the catalyst layers (CLs) thinner thus reducing expensive Pt content. The limit of thin CLs is high gas-transport resistance and the performance of these CLs is sensitive to the operating temperature due to their inherent lowmore » water uptake capacity, which results in higher sensitivity to liquid-water flooding and reduced durability. Therefore, reducing PEFC's cost by decreasing Pt content and improving PEFC's performance and durability by managing liquid-water are still challenging and open topics of research. An overlooked aspect nowadays of PEFC water management is the gas-diffusion layer (GDL). While it is known that GDL's properties can impact performance, typically it is not seen as a critical component. In this work, we present data showing the importance of GDLs in terms of water removal and management while also exploring the interactions between liquid-water and GDL surfaces. The critical interface of GDL and gas-flow-channel in the presence of liquid-water was examined through systematic studies of adhesion forces as a function of water-injection rate for various GDLs of varying thickness. GDL properties (breakthrough pressure and adhesion force) were measured experimentally under a host of test conditions. Specifically, the effects of GDL hydrophobic (PTFE) content, thickness, and water-injection rate were examined to identify trends that may be beneficial to the design of liquid-water management strategies and next-generation GDL materials for PEFCs.« less

  11. Interactions between liquid-water and gas-diffusion layers in polymer-electrolyte fuel cells

    SciTech Connect (OSTI)

    Das, Prodip K.; Santamaria, Anthony D.; Weber, Adam Z.

    2015-06-11

    Over the past few decades, a significant amount of research on polymer-electrolyte fuel cells (PEFCs) has been conducted to improve performance and durability while reducing the cost of fuel cell systems. However, the cost associated with the platinum (Pt) catalyst remains a barrier to their commercialization and PEFC durability standards have yet to be established. An effective path toward reducing PEFC cost is making the catalyst layers (CLs) thinner thus reducing expensive Pt content. The limit of thin CLs is high gas-transport resistance and the performance of these CLs is sensitive to the operating temperature due to their inherent low water uptake capacity, which results in higher sensitivity to liquid-water flooding and reduced durability. Therefore, reducing PEFC's cost by decreasing Pt content and improving PEFC's performance and durability by managing liquid-water are still challenging and open topics of research. An overlooked aspect nowadays of PEFC water management is the gas-diffusion layer (GDL). While it is known that GDL's properties can impact performance, typically it is not seen as a critical component. In this work, we present data showing the importance of GDLs in terms of water removal and management while also exploring the interactions between liquid-water and GDL surfaces. The critical interface of GDL and gas-flow-channel in the presence of liquid-water was examined through systematic studies of adhesion forces as a function of water-injection rate for various GDLs of varying thickness. GDL properties (breakthrough pressure and adhesion force) were measured experimentally under a host of test conditions. Specifically, the effects of GDL hydrophobic (PTFE) content, thickness, and water-injection rate were examined to identify trends that may be beneficial to the design of liquid-water management strategies and next-generation GDL materials for PEFCs.

  12. Fuel cell gas management system

    DOE Patents [OSTI]

    DuBose, Ronald Arthur

    2000-01-11

    A fuel cell gas management system including a cathode humidification system for transferring latent and sensible heat from an exhaust stream to the cathode inlet stream of the fuel cell; an anode humidity retention system for maintaining the total enthalpy of the anode stream exiting the fuel cell equal to the total enthalpy of the anode inlet stream; and a cooling water management system having segregated deionized water and cooling water loops interconnected by means of a brazed plate heat exchanger.

  13. Ambient pressure fuel cell system

    DOE Patents [OSTI]

    Wilson, Mahlon S.

    2000-01-01

    An ambient pressure fuel cell system is provided with a fuel cell stack formed from a plurality of fuel cells having membrane/electrode assemblies (MEAs) that are hydrated with liquid water and bipolar plates with anode and cathode sides for distributing hydrogen fuel gas and water to a first side of each one of the MEAs and air with reactant oxygen gas to a second side of each one of the MEAs. A pump supplies liquid water to the fuel cells. A recirculating system may be used to return unused hydrogen fuel gas to the stack. A near-ambient pressure blower blows air through the fuel cell stack in excess of reaction stoichiometric amounts to react with the hydrogen fuel gas.

  14. Fuel Cells

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cells - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  15. Ohio Fuel Cell Initiative

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Top 5 Fuel Cell States: Why Local Policies Mean Green Growth Jun 21 st , 2011 2 * Ohio Fuel Cell Initiative * Ohio Fuel Cell Coalition * Accomplishments * Ohio Successes Discussion Areas 3 Ohio's Fuel Cell Initiative * Announced on 5/9/02 * Part of Ohio Third Frontier Initiative * $85 million investment to date * Core focus areas: 1) Expand the state's research capabilities; 2) Participate in demonstration projects; and 3) Expand the fuel cell industry in Ohio 4 OHIO'S FUEL CELL INITIATIVE

  16. Fuel Cells in Telecommunications

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cells Simply Powerful Fuel Cells in Telecommunications J. Blanchard December 2011 - ReliOn Overview Markets Backup, grid supplement, and off grid power systems for critical ...

  17. Hydrogen and Fuel Cell Technologies Update: 2010 Fuel Cell Seminar...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Update: 2010 Fuel Cell Seminar and Exposition Hydrogen and Fuel Cell Technologies Update: 2010 Fuel Cell Seminar and Exposition Presentation by Sunita Satyapal at the 2010 Fuel ...

  18. Fuel Cell Bus Workshop

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ue Ce ec o o es o a Energy Efficiency & Renewable Energy Fuel Cell Bus Workshop Overview and Purp pose Dimitrios Papageorgopoulos Fuel Cell Technolog gies Prog gram DOE and DOT Joint Fuel Cell Bus Workshop, Washington DC DOE and DOT Joint Fuel Cell Bus Workshop, Washington DC June 7, 2010 June 7, 2010 Fuel Cells - Addressing Energy Challenges Energy Efficiency and Resource Diversity * Fuel cells offer a highly efficient way to use diverse fuels and energy sources Fuel cells offer a highly

  19. Hydrogen and Fuel Cell Technologies Program: Fuel Cells Fact Sheet |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Hydrogen and Fuel Cell Technologies Program: Fuel Cells Fact Sheet Hydrogen and Fuel Cell Technologies Program: Fuel Cells Fact Sheet Fact sheet produced by the Fuel Cell Technologies Program describing hydrogen fuel cell technology. Fuel Cells Fact Sheet (545.14 KB) More Documents & Publications Comparison of Fuel Cell Technologies: Fact Sheet Fuel Cells Fact Sheet 2011 Pathways to Commercial Success: Technologies and Products Supported by the Fuel Cell Technologies

  20. Controlling Accumulation of Fermentation Inhibitors in Biorefinery Recycle Water Using Microbial Fuel Cells

    SciTech Connect (OSTI)

    Borole, Abhijeet P; Mielenz, Jonathan R; Leak, David; Vishnivetskaya, Tatiana A; Hamilton, Choo Yieng; Andras, Calin

    2009-01-01

    Background Microbial fuel cells (MFC) and microbial electrolysis cells are electrical devices that treat water using microorganisms and convert soluble organic matter into electricity and hydrogen, respectively. Emerging cellulosic biorefineries are expected to use large amounts of water during production of ethanol. Pretreatment of cellulosic biomass results in production of fermentation inhibitors which accumulate in process water and make the water recycle process difficult. Use of MFCs to remove the inhibitory sugar and lignin degradation products from recycle water is investigated in this study. Results Use of an MFC to reduce the levels of furfural, 5-hydroxymethylfurfural, vanillic acid, 4- hydroxybenzaldehyde and 4-hydroxyacetophenone while simultaneously producing electricity is demonstrated here. An integrated MFC design approach was used which resulted in high power densities for the MFC, reaching up to 3700mW/m2 (356W/m3 net anode volume) and a coulombic efficiency of 69%. The exoelectrogenic microbial consortium enriched in the anode was characterized using a 16S rRNA clone library method. A unique exoelectrogenic microbial consortium dominated by -Proteobacteria (50%), along with -Proteobacteria (28%), -Proteobacteria (14%), -Proteobacteria (6%) and others was identified. The consortium demonstrated broad substrate specificity, ability to handle high inhibitor concentrations (5 to 20mM) with near complete removal, while maintaining long-term stability with respect to power production. Conclusions Use of MFCs for removing fermentation inhibitors has implications for: 1) enabling higher ethanol yields at high biomass loading in cellulosic ethanol biorefineries, 2) improved water recycle and 3) electricity production up to 25% of total biorefinery power needs.

  1. Low cost fuel cell diffusion layer configured for optimized anode...

    Office of Scientific and Technical Information (OSTI)

    for optimized anode water management Citation Details In-Document Search Title: Low cost fuel cell diffusion layer configured for optimized anode water management A fuel cell ...

  2. Microbial fuel cell treatment of ethanol fermentation process...

    Office of Scientific and Technical Information (OSTI)

    Microbial fuel cell treatment of ethanol fermentation process water Title: Microbial fuel cell treatment of ethanol fermentation process water The present invention relates to a ...

  3. Fuel Cells for Critical Communications Backup Power

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for Critical Communications Backup Power Greg Moreland SENTECH, Inc. Supporting the U.S. Department of Energy August 6, 2008 APCO Annual Conference and Expo 2 2 Fuel cells use hydrogen to create electricity, with only water and heat as byproducts Fuel Cell Overview * An individual fuel cell produces about 1 volt * Hundreds of individual cells can comprise a fuel cell stack * Fuel cells can be used to power a variety of applications -Bibliographic Database * Laptop computers (50-100 W) *

  4. Fuel cell membrane humidification

    DOE Patents [OSTI]

    Wilson, Mahlon S.

    1999-01-01

    A polymer electrolyte membrane fuel cell assembly has an anode side and a cathode side separated by the membrane and generating electrical current by electrochemical reactions between a fuel gas and an oxidant. The anode side comprises a hydrophobic gas diffusion backing contacting one side of the membrane and having hydrophilic areas therein for providing liquid water directly to the one side of the membrane through the hydrophilic areas of the gas diffusion backing. In a preferred embodiment, the hydrophilic areas of the gas diffusion backing are formed by sewing a hydrophilic thread through the backing. Liquid water is distributed over the gas diffusion backing in distribution channels that are separate from the fuel distribution channels.

  5. Energy 101: Fuel Cell Technology

    ScienceCinema (OSTI)

    None

    2014-06-06

    Learn how fuel cell technology generates clean electricity from hydrogen to power our buildings and transportation-while emitting nothing but water. This video illustrates the fundamentals of fuel cell technology and its potential to supply our homes, offices, industries, and vehicles with sustainable, reliable energy.

  6. Energy 101: Fuel Cell Technology

    SciTech Connect (OSTI)

    2014-03-11

    Learn how fuel cell technology generates clean electricity from hydrogen to power our buildings and transportation-while emitting nothing but water. This video illustrates the fundamentals of fuel cell technology and its potential to supply our homes, offices, industries, and vehicles with sustainable, reliable energy.

  7. Fuel Cells and Renewable Gaseous Fuels

    Broader source: Energy.gov [DOE]

    Breakout Session 3-C: Renewable Gaseous FuelsFuel Cells and Renewable Gaseous FuelsSarah Studer, ORISE Fellow—Fuel Cell Technologies Office, U.S. Department of Energy

  8. LADWP FUEL CELL DEMONSTRATION PROJECT

    SciTech Connect (OSTI)

    Thai Ta

    2003-09-12

    Los Angeles Department of Water and Power (LADWP) is currently one of the most active power utility companies in researching fuel cell technology. Fuel cells offer many benefits and are now used as an alternative to traditional internal combustion engines in power generation. In continuing it's role as the leader in fuel cell research, LADWP has installed a pre-commercial molten carbonate fuel cell on August 2001 at its headquarter, the John Ferraro Building (JFB). The goal of this project is to learn more about the actual behavior of the fuel cell running under real world conditions. The fuel cell ran smoothly through the first year of operation with very high efficiency, but with some minor setbacks. The JFB fuel cell project is funded by the City of Los Angeles Department of Water and Power with partial grant funding from the Department of Defense's Climate Change Fuel Cell Buydown Program. The technical evaluation and the benefit-cost evaluation of the JFB fuel cell are both examined in this report.

  9. Fuel Cell Technologies Overview: 2011 Fuel Cell Seminar | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Fuel Cell Seminar on November 1, 2011. Fuel Cell Technologies Overview (4.38 MB) More Documents & Publications Fuel Cell Technologies Overview: March 2012 State Energy Advisory ...

  10. DOE Fuel Cell Technologies Office: 2013 Fuel Cell Seminar and...

    Broader source: Energy.gov (indexed) [DOE]

    Overview of DOE's Fuel Cell Technologies Office presented by Sunita Satyapal at the 2013 Fuel Cell Seminar and Energy Exposition in Columbus, Ohio. DOE Fuel Cell Technologies ...

  11. Fuel Cells for Supermarkets: Cleaner Energy with Fuel Cell Combined...

    Broader source: Energy.gov (indexed) [DOE]

    smith.pdf (0 B) More Documents & Publications Fuel Cells at Supermarkets: NYSERDA's Perspective Fuel Cell Case Study Hydrogen Production and Storage for Fuel Cells: Current Status

  12. Fuel Cell Technologies Multimedia | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Information Resources » Fuel Cell Technologies Multimedia Fuel Cell Technologies Multimedia View and download multimedia-including infographics, videos, and animations-related to hydrogen and fuel cell technologies, research, projects, and program activities. Infographics View the fuel cell electric vehicle infographic to learn about how fuel cell electric vehicles (FCEVs) work and some of the benefits of FCEVs, such as how they reduce greenhouse gas emissions, emit only water, and operate

  13. Fuel cell integrated with steam reformer

    DOE Patents [OSTI]

    Beshty, Bahjat S. (Lower Makefield, PA); Whelan, James A. (Bricktown, NJ)

    1987-01-01

    A H.sub.2 -air fuel cell integrated with a steam reformer is disclosed wherein a superheated water/methanol mixture is fed to a catalytic reformer to provide a continuous supply of hydrogen to the fuel cell, the gases exhausted from the anode of the fuel cell providing the thermal energy, via combustion, for superheating the water/methanol mixture.

  14. EERE Fuel Cell Technologies Program

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AudienceEvent Date EERE Fuel Cell Technologies Program Sunita Satyapal Acting Program Manager U.S. Department of Energy Fuel Cell Technologies Program Fuel Cell Project Kickoff ...

  15. 2008 Fuel Cell Technologies Market Report

    Fuel Cell Technologies Publication and Product Library (EERE)

    Fuel cells are electrochemical devices that combine hydrogen and oxygen to produce electricity, water, and heat. Unlike batteries, fuel cells continuously generate electricity, as long as a source of

  16. 2009 Fuel Cell Market Report, November 2010

    SciTech Connect (OSTI)

    Not Available

    2010-11-01

    Fuel cells are electrochemical devices that combine hydrogen and oxygen to produce electricity, water, and heat. Unlike batteries, fuel cells continuously generate electricity, as long as a source of fuel is supplied. Moreover, fuel cells do not burn fuel, making the process quiet, pollution-free and two to three times more efficient than combustion. Fuel cell systems can be a truly zero-emission source of electricity, if the hydrogen is produced from non-polluting sources. Global concerns about climate change, energy security, and air pollution are driving demand for fuel cell technology. More than 630 companies and laboratories in the United States are investing $1 billion a year in fuel cells or fuel cell component technologies. This report provides an overview of trends in the fuel cell industry and markets, including product shipments, market development, and corporate performance. It also provides snapshots of select fuel cell companies, including general.

  17. Fuel cell arrangement

    DOE Patents [OSTI]

    Isenberg, A.O.

    1987-05-12

    A fuel cell arrangement is provided wherein cylindrical cells of the solid oxide electrolyte type are arranged in planar arrays where the cells within a plane are parallel. Planes of cells are stacked with cells of adjacent planes perpendicular to one another. Air is provided to the interior of the cells through feed tubes which pass through a preheat chamber. Fuel is provided to the fuel cells through a channel in the center of the cell stack; the fuel then passes the exterior of the cells and combines with the oxygen-depleted air in the preheat chamber. 3 figs.

  18. Fuel cell arrangement

    DOE Patents [OSTI]

    Isenberg, Arnold O.

    1987-05-12

    A fuel cell arrangement is provided wherein cylindrical cells of the solid oxide electrolyte type are arranged in planar arrays where the cells within a plane are parallel. Planes of cells are stacked with cells of adjacent planes perpendicular to one another. Air is provided to the interior of the cells through feed tubes which pass through a preheat chamber. Fuel is provided to the fuel cells through a channel in the center of the cell stack; the fuel then passes the exterior of the cells and combines with the oxygen-depleted air in the preheat chamber.

  19. Micro fuel cell

    SciTech Connect (OSTI)

    Zook, L.A.; Vanderborgh, N.E. [Los Alamos National Lab., NM (United States); Hockaday, R. [Energy Related Devices Inc., Los Alamos, NM (United States)

    1998-12-31

    An ambient temperature, liquid feed, direct methanol fuel cell device is under development. A metal barrier layer was used to block methanol crossover from the anode to the cathode side while still allowing for the transport of protons from the anode to the cathode. A direct methanol fuel cell (DMFC) is an electrochemical engine that converts chemical energy into clean electrical power by the direct oxidation of methanol at the fuel cell anode. This direct use of a liquid fuel eliminates the need for a reformer to convert the fuel to hydrogen before it is fed into the fuel cell.

  20. Fuel Cells and Renewable Gaseous Fuels

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cell Technologies Office | 1 7/14/2015 Fuel Cells and Renewable Gaseous Fuels Bioenergy 2015: Renewable Gaseous Fuels Breakout Session Sarah Studer, PhD ORISE Fellow Fuel Cell Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy June 24, 2015 Washington, DC Fuel Cell Technologies Office | 2 7/14/2015 7/14/2015 DOE Hydrogen and Fuel Cells Program Integrated approach to widespread commercialization of H 2 and fuel cells Fuel Cell Cost Durability H 2 Cost

  1. Fuel Cells & Alternative Fuels | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cells & Alternative Fuels Fuel Cells & Alternative Fuels Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and ...

  2. Fuel Cells Fact Sheet

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cells Fuel cells are the most energy efficient devices for extracting power from fuels. Capable of running on a variety of fuels, including hydrogen, natural gas, and biogas, fuel cells can provide clean power for applications ranging from less than a watt to multiple megawatts. Our transportation-including personal vehicles, trucks, buses, marine vessels, and other specialty vehicles such as lift trucks and ground support equipment, as well as auxiliary power units for traditional

  3. Direct hydrocarbon fuel cells

    DOE Patents [OSTI]

    Barnett, Scott A.; Lai, Tammy; Liu, Jiang

    2010-05-04

    The direct electrochemical oxidation of hydrocarbons in solid oxide fuel cells, to generate greater power densities at lower temperatures without carbon deposition. The performance obtained is comparable to that of fuel cells used for hydrogen, and is achieved by using novel anode composites at low operating temperatures. Such solid oxide fuel cells, regardless of fuel source or operation, can be configured advantageously using the structural geometries of this invention.

  4. Fuel-cell engine stream conditioning system

    DOE Patents [OSTI]

    DuBose, Ronald Arthur

    2002-01-01

    A stream conditioning system for a fuel cell gas management system or fuel cell engine. The stream conditioning system manages species potential in at least one fuel cell reactant stream. A species transfer device is located in the path of at least one reactant stream of a fuel cell's inlet or outlet, which transfer device conditions that stream to improve the efficiency of the fuel cell. The species transfer device incorporates an exchange media and a sorbent. The fuel cell gas management system can include a cathode loop with the stream conditioning system transferring latent and sensible heat from an exhaust stream to the cathode inlet stream of the fuel cell; an anode humidity retention system for maintaining the total enthalpy of the anode stream exiting the fuel cell related to the total enthalpy of the anode inlet stream; and a cooling water management system having segregated deionized water and cooling water loops interconnected by means of a brazed plate heat exchanger.

  5. Fuel cells and fuel cell catalysts

    DOE Patents [OSTI]

    Masel, Richard I.; Rice, Cynthia A.; Waszczuk, Piotr; Wieckowski, Andrzej

    2006-11-07

    A direct organic fuel cell includes a formic acid fuel solution having between about 10% and about 95% formic acid. The formic acid is oxidized at an anode. The anode may include a Pt/Pd catalyst that promotes the direct oxidation of the formic acid via a direct reaction path that does not include formation of a CO intermediate.

  6. Advanced Fuel Reformer Development: Putting the 'Fuel' in Fuel Cells |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Fuel Reformer Development: Putting the 'Fuel' in Fuel Cells Advanced Fuel Reformer Development: Putting the 'Fuel' in Fuel Cells Presented at the DOE-DOD Shipboard APU Workshop on March 29, 2011. apu2011_6_roychoudhury.pdf (4.83 MB) More Documents & Publications System Design - Lessons Learned, Generic Concepts, Characteristics & Impacts Fuel Cells For Transportation - 1999 Annual Progress Report Energy Conversion Team Fuel Cell Systems Annual Progress Report

  7. Fuel cell generator

    DOE Patents [OSTI]

    Isenberg, Arnold O.

    1983-01-01

    High temperature solid oxide electrolyte fuel cell generators which allow controlled leakage among plural chambers in a sealed housing. Depleted oxidant and fuel are directly reacted in one chamber to combust remaining fuel and preheat incoming reactants. The cells are preferably electrically arranged in a series-parallel configuration.

  8. Air Liquide - Biogas & Fuel Cells

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... the environment PT Loma WWTP, Biogas to Fuel Cell Power BioFuels Energy Biogas to BioMethane to 4.5 MW Fuel Cell Power 3 FCE Fuel Cells 2 via directed Biomethane ...

  9. Reforming of fuel inside fuel cell generator

    DOE Patents [OSTI]

    Grimble, Ralph E.

    1988-01-01

    Disclosed is an improved method of reforming a gaseous reformable fuel within a solid oxide fuel cell generator, wherein the solid oxide fuel cell generator has a plurality of individual fuel cells in a refractory container, the fuel cells generating a partially spent fuel stream and a partially spent oxidant stream. The partially spent fuel stream is divided into two streams, spent fuel stream I and spent fuel stream II. Spent fuel stream I is burned with the partially spent oxidant stream inside the refractory container to produce an exhaust stream. The exhaust stream is divided into two streams, exhaust stream I and exhaust stream II, and exhaust stream I is vented. Exhaust stream II is mixed with spent fuel stream II to form a recycle stream. The recycle stream is mixed with the gaseous reformable fuel within the refractory container to form a fuel stream which is supplied to the fuel cells. Also disclosed is an improved apparatus which permits the reforming of a reformable gaseous fuel within such a solid oxide fuel cell generator. The apparatus comprises a mixing chamber within the refractory container, means for diverting a portion of the partially spent fuel stream to the mixing chamber, means for diverting a portion of exhaust gas to the mixing chamber where it is mixed with the portion of the partially spent fuel stream to form a recycle stream, means for injecting the reformable gaseous fuel into the recycle stream, and means for circulating the recycle stream back to the fuel cells.

  10. Reforming of fuel inside fuel cell generator

    DOE Patents [OSTI]

    Grimble, R.E.

    1988-03-08

    Disclosed is an improved method of reforming a gaseous reformable fuel within a solid oxide fuel cell generator, wherein the solid oxide fuel cell generator has a plurality of individual fuel cells in a refractory container, the fuel cells generating a partially spent fuel stream and a partially spent oxidant stream. The partially spent fuel stream is divided into two streams, spent fuel stream 1 and spent fuel stream 2. Spent fuel stream 1 is burned with the partially spent oxidant stream inside the refractory container to produce an exhaust stream. The exhaust stream is divided into two streams, exhaust stream 1 and exhaust stream 2, and exhaust stream 1 is vented. Exhaust stream 2 is mixed with spent fuel stream 2 to form a recycle stream. The recycle stream is mixed with the gaseous reformable fuel within the refractory container to form a fuel stream which is supplied to the fuel cells. Also disclosed is an improved apparatus which permits the reforming of a reformable gaseous fuel within such a solid oxide fuel cell generator. The apparatus comprises a mixing chamber within the refractory container, means for diverting a portion of the partially spent fuel stream to the mixing chamber, means for diverting a portion of exhaust gas to the mixing chamber where it is mixed with the portion of the partially spent fuel stream to form a recycle stream, means for injecting the reformable gaseous fuel into the recycle stream, and means for circulating the recycle stream back to the fuel cells. 1 fig.

  11. Fuel Cell Animation (Text Version) | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    This text version of the fuel cell animation demonstrates how a fuel cell uses hydrogen to produce electricity, with only water and heat as byproducts. Fuel cell shown with its ...

  12. California Fuel Cell Partnership: Alternative Fuels Research...

    Broader source: Energy.gov (indexed) [DOE]

    This presentation by Chris White of the California Fuel Cell Partnership provides information about alternative fuels research. cafcpinitiativescall.pdf (133.97 KB) More ...

  13. Molten carbonate fuel cell

    DOE Patents [OSTI]

    Kaun, Thomas D.; Smith, James L.

    1987-01-01

    A molten electrolyte fuel cell with an array of stacked cells and cell enclosures isolating each cell except for access to gas manifolds for the supply of fuel or oxidant gas or the removal of waste gas, the cell enclosures collectively providing an enclosure for the array and effectively avoiding the problems of electrolyte migration and the previous need for compression of stack components, the fuel cell further including an inner housing about and in cooperation with the array enclosure to provide a manifold system with isolated chambers for the supply and removal of gases. An external insulated housing about the inner housing provides thermal isolation to the cell components.

  14. Molten carbonate fuel cell

    DOE Patents [OSTI]

    Kaun, T.D.; Smith, J.L.

    1986-07-08

    A molten electrolyte fuel cell is disclosed with an array of stacked cells and cell enclosures isolating each cell except for access to gas manifolds for the supply of fuel or oxidant gas or the removal of waste gas. The cell enclosures collectively provide an enclosure for the array and effectively avoid the problems of electrolyte migration and the previous need for compression of stack components. The fuel cell further includes an inner housing about and in cooperation with the array enclosure to provide a manifold system with isolated chambers for the supply and removal of gases. An external insulated housing about the inner housing provides thermal isolation to the cell components.

  15. Fuel cell market applications

    SciTech Connect (OSTI)

    Williams, M.C.

    1995-12-31

    This is a review of the US (and international) fuel cell development for the stationary power generation market. Besides DOE, GRI, and EPRI sponsorship, the US fuel cell program has over 40% cost-sharing from the private sector. Support is provided by user groups with over 75 utility and other end-user members. Objectives are to develop and demonstrate cost-effective fuel cell power generation which can initially be commercialized into various market applications using natural gas fuel by the year 2000. Types of fuel cells being developed include PAFC (phosphoric acid), MCFC (molten carbonate), and SOFC (solid oxide); status of each is reported. Potential international applications are reviewed also. Fuel cells are viewed as a force in dispersed power generation, distributed power, cogeneration, and deregulated industry. Specific fuel cell attributes are discussed: Fuel cells promise to be one of the most reliable power sources; they are now being used in critical uninterruptible power systems. They need hydrogen which can be generated internally from natural gas, coal gas, methanol landfill gas, or other fuels containing hydrocarbons. Finally, fuel cell development and market applications in Japan are reviewed briefly.

  16. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    7/21/2015 eere.energy.gov Fuel Cell Technologies Overview States Energy Advisory Board (STEAB) Washington, DC Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 3/14/2012 Outline * Introduction - Technology and Market Overview * DOE Program Overview - Mission & Structure - R&D Progress - Demonstration & Deployments * State Activities - Examples of potential opportunities 2 | Fuel Cell Technologies Program Source: US DOE 7/21/2015

  17. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    States Energy Advisory Board (STEAB) Washington, DC Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 3/14/2012 2 | Fuel Cell Technologies Program Source: US DOE 3/19/2013 eere.energy.gov * Introduction - Technology and Market Overview * DOE Program Overview - Mission & Structure - R&D Progress - Demonstration & Deployments * State Activities - Examples of potential opportunities Outline 3 | Fuel Cell Technologies Program Source: US DOE

  18. Fuel Cells in the States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    in the Fuel Cells in the States States State and Regional State and Regional Initiatives Working Group Initiatives Working Group July 12, 2006 July 12, 2006 Jennifer Gangi Jennifer Gangi Program Director Program Director Fuel Cells 2000 Fuel Cells 2000 Fuel Cells 2000 / BTI Fuel Cells 2000 / BTI U.S. nonprofit organization U.S. nonprofit organization Established in 1993 Established in 1993 Promotes fuel cells from public Promotes fuel cells from public interest perspective. interest perspective.

  19. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cell Seminar Orlando, FL Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 11/1/2011 2 | Fuel Cell Technologies Program Source: US DOE 3/19/2013 eere.energy.gov DOE Program Overview Budget Progress Next Steps Agenda 3 | Fuel Cell Technologies Program Source: US DOE 3/19/2013 eere.energy.gov DOE Program Structure The Program is an integrated effort, structured to address all the key challenges and obstacles facing widespread commercialization. The

  20. Fuel Cell Case Study

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Global Leader, Sustainable Engineering, Maintenance & Energy Management Whole Foods Market, Inc. Fuel Cell Case Study 2 Holistic Approach from Development to Operation WFM Energy ...

  1. Opportunities with Fuel Cells

    Reports and Publications (EIA)

    1994-01-01

    The concept for fuel cells was discovered in the nineteenth century. Today, units incorporating this technology are becoming commercially available for cogeneration applications.

  2. Hydrogen Fuel Cells

    Fuel Cell Technologies Publication and Product Library (EERE)

    The fuel cell — an energy conversion device that can efficiently capture and use the power of hydrogen — is the key to making it happen.

  3. Adiabatic Fuel Cell Stack - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Technology Marketing SummaryAdiabatic fuel cell stacks are simple, low-cost and reliable. Operating at ... cathode sides for distributing hydrogen fuel gas and water to a first ...

  4. Fuel Cell Demonstration Program

    SciTech Connect (OSTI)

    Gerald Brun

    2006-09-15

    In an effort to promote clean energy projects and aid in the commercialization of new fuel cell technologies the Long Island Power Authority (LIPA) initiated a Fuel Cell Demonstration Program in 1999 with six month deployments of Proton Exchange Membrane (PEM) non-commercial Beta model systems at partnering sites throughout Long Island. These projects facilitated significant developments in the technology, providing operating experience that allowed the manufacturer to produce fuel cells that were half the size of the Beta units and suitable for outdoor installations. In 2001, LIPA embarked on a large-scale effort to identify and develop measures that could improve the reliability and performance of future fuel cell technologies for electric utility applications and the concept to establish a fuel cell farm (Farm) of 75 units was developed. By the end of October of 2001, 75 Lorax 2.0 fuel cells had been installed at the West Babylon substation on Long Island, making it the first fuel cell demonstration of its kind and size anywhere in the world at the time. Designed to help LIPA study the feasibility of using fuel cells to operate in parallel with LIPA's electric grid system, the Farm operated 120 fuel cells over its lifetime of over 3 years including 3 generations of Plug Power fuel cells (Lorax 2.0, Lorax 3.0, Lorax 4.5). Of these 120 fuel cells, 20 Lorax 3.0 units operated under this Award from June 2002 to September 2004. In parallel with the operation of the Farm, LIPA recruited government and commercial/industrial customers to demonstrate fuel cells as on-site distributed generation. From December 2002 to February 2005, 17 fuel cells were tested and monitored at various customer sites throughout Long Island. The 37 fuel cells operated under this Award produced a total of 712,635 kWh. As fuel cell technology became more mature, performance improvements included a 1% increase in system efficiency. Including equipment, design, fuel, maintenance, installation

  5. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    4/3/2012 eere.energy.gov Fuel Cell Technologies Overview Flow Cell Workshop Washington, DC Dr. Sunita Satyapal & Dr. Dimitrios Papageorgopoulos U.S. Department of Energy Fuel Cell Technologies Program 3/7/2011 Flow Cells for Energy Storage Workshop Purpose To understand the applied research and development needs and the grand challenges for the use of flow cells as energy-storage devices. Objectives 1. Understand the needs for applied research from stakeholders. 2. Gather input for future

  6. Miniature ceramic fuel cell

    DOE Patents [OSTI]

    Lessing, Paul A.; Zuppero, Anthony C.

    1997-06-24

    A miniature power source assembly capable of providing portable electricity is provided. A preferred embodiment of the power source assembly employing a fuel tank, fuel pump and control, air pump, heat management system, power chamber, power conditioning and power storage. The power chamber utilizes a ceramic fuel cell to produce the electricity. Incoming hydro carbon fuel is automatically reformed within the power chamber. Electrochemical combustion of hydrogen then produces electricity.

  7. Solid oxide fuel cell generator

    DOE Patents [OSTI]

    Di Croce, A.M.; Draper, R.

    1993-11-02

    A solid oxide fuel cell generator has a plenum containing at least two rows of spaced apart, annular, axially elongated fuel cells. An electrical conductor extending between adjacent rows of fuel cells connects the fuel cells of one row in parallel with each other and in series with the fuel cells of the adjacent row. 5 figures.

  8. Solid oxide fuel cell generator

    DOE Patents [OSTI]

    Di Croce, A. Michael; Draper, Robert

    1993-11-02

    A solid oxide fuel cell generator has a plenum containing at least two rows of spaced apart, annular, axially elongated fuel cells. An electrical conductor extending between adjacent rows of fuel cells connects the fuel cells of one row in parallel with each other and in series with the fuel cells of the adjacent row.

  9. CLIMATE CHANGE FUEL CELL PROGRAM

    SciTech Connect (OSTI)

    Mike Walneuski

    2004-09-16

    ChevronTexaco has successfully operated a 200 kW PC25C phosphoric acid fuel cell power plant at the corporate data center in San Ramon, California for the past two years and seven months following installation in December 2001. This site was chosen based on the ability to utilize the combined heat (hot water) and power generation capability of this modular fuel cell power plant in an office park setting . In addition, this project also represents one of the first commercial applications of a stationary fuel cell for a mission critical data center to assess power reliability benefits. This fuel cell power plant system has demonstrated outstanding reliability and performance relative to other comparably sized cogeneration systems.

  10. Tilted fuel cell apparatus

    DOE Patents [OSTI]

    Cooper, John F.; Cherepy, Nerine; Krueger, Roger L.

    2005-04-12

    Bipolar, tilted embodiments of high temperature, molten electrolyte electrochemical cells capable of directly converting carbon fuel to electrical energy are disclosed herein. The bipolar, tilted configurations minimize the electrical resistance between one cell and others connected in electrical series. The tilted configuration also allows continuous refueling of carbon fuel.

  11. Fuel Cell Kickoff Meeting Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Meeting Agenda February 13, 2007 9:00 Welcome and Program Overview Pat Davis Nancy Garland Membranes 9:20 Membranes and MEA's for Dry, Hot Operating Conditions S. Hamrock, 3M 9:40 New Polyelectrolyte Materials for High Temperature Fuel Cells J. Kerr, LBNL 10:00 The Design of Novel Materials Consisting of a Semi- Interpenetrating Network of PVDF and a Sulfonated Polyelectrolyte M. Foure, Arkema 10:20 Break Water Transport Studies 10:50 Visualization of Fuel Cell Water Transport and Performance

  12. NREL: Hydrogen and Fuel Cells Research - Early Fuel Cell Market

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Demonstrations Early Fuel Cell Market Demonstrations Photo of fuel cell backup power system in outdoor setting. Photo of fuel cell forklifts in warehouse setting. Fuel cell backup power systems offer longer continuous runtimes and greater durability than traditional batteries in harsh outdoor environments. For specialty vehicles such as forklifts, fuel cells can be a cost-competitive alternative to traditional lead-acid batteries. Learn More Subscribe to the biannual Fuel Cell and Hydrogen

  13. NREL: Hydrogen and Fuel Cells Research - Fuel Cell Technology Status

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Analysis Fuel Cell Technology Status Analysis Get Involved Fuel cell developers interested in collaborating with NREL on fuel cell technology status analysis should send an email to NREL's Technology Validation Team at techval@nrel.gov. NREL's analysis of fuel cell technology provides objective and credible information about new fuel cell technologies with a focus on performance, durability, and price. As demand for fuel cells grows, U.S. manufacturers are developing these technologies for a

  14. Fuel cell system for transportation applications

    DOE Patents [OSTI]

    Kumar, Romesh; Ahmed, Shabbir; Krumpelt, Michael; Myles, Kevin M.

    1993-01-01

    A propulsion system for a vehicle having pairs of front and rear wheels and a fuel tank. An electrically driven motor having an output shaft operatively connected to at least one of said pair of wheels is connected to a fuel cell having a positive electrode and a negative electrode separated by an electrolyte for producing dc power to operate the motor. A partial oxidation reformer is connected both to the fuel tank and to the fuel cell receives hydrogen-containing fuel from the fuel tank and water and air and for partially oxidizing and reforming the fuel with water and air in the presence of an oxidizing catalyst and a reforming catalyst to produce a hydrogen-containing gas. The hydrogen-containing gas is sent from the partial oxidation reformer to the fuel cell negative electrode while air is transported to the fuel cell positive electrode to produce dc power for operating the electric motor.

  15. Fuel Cells Fact Sheet | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fact Sheet Fact sheet produced by the Fuel Cell Technologies Office describing hydrogen fuel cell technology. Fuel Cells More Documents & Publications Hydrogen and Fuel Cell...

  16. Solid Oxide Fuel Cells FAQs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SOLID OXIDE FUEL CELLS - BASICS Q: What is a fuel cell? A: A fuel cell is a power generation ... Program research is focused on developing low-cost and highly efficient SOFC power ...

  17. Self-humidified proton exchange membrane fuel cells: Operation of larger cells and fuel cell stacks

    SciTech Connect (OSTI)

    Dhar, H.P.; Lee, J.H.; Lewinski, K.A.

    1996-12-31

    The PEM fuel cell is promising as the power source for use in mobile and stationary applications primarily because of its high power density, all solid components, and simplicity of operation. For wide acceptability of this power source, its cost has to be competitive with the presently available energy sources. The fuel cell requires continuous humidification during operation as a power source. The humidification unit however, increases fuel cell volume, weight, and therefore decreases its overall power density. Great advantages in terms of further fuel cell simplification can be achieved if the humidification process can be eliminated or minimized. In addition, cost reductions are associated with the case of manufacturing and operation. At BCS Technology we have developed a technology of self-humidified operation of PEM fuel cells based on the mass balance of the reactants and products and the ability of membrane electrode assembly (MEA) to retain water necessary for humidification under the cell operating conditions. The reactants enter the fuel cell chambers without carrying any form of water, whether in liquid or vapor form. Basic principles of self-humidified operation of fuel cells as practiced by BCS Technology, Inc. have been presented previously in literature. Here, we report the operation of larger self-humidified single cells and fuel cell stacks. Fuel cells of areas Up to 100 cm{sup 2} have been operated. We also show the self-humidified operation of fuel cell stacks of 50 and 100 cm{sup 2} electrode areas.

  18. Fuel cell stack arrangements

    DOE Patents [OSTI]

    Kothmann, Richard E.; Somers, Edward V.

    1982-01-01

    Arrangements of stacks of fuel cells and ducts, for fuel cells operating with separate fuel, oxidant and coolant streams. An even number of stacks are arranged generally end-to-end in a loop. Ducts located at the juncture of consecutive stacks of the loop feed oxidant or fuel to or from the two consecutive stacks, each individual duct communicating with two stacks. A coolant fluid flows from outside the loop, into and through cooling channels of the stack, and is discharged into an enclosure duct formed within the loop by the stacks and seals at the junctures at the stacks.

  19. Fuel Cell Technologies Program Overview

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    US DOE CSD Workshop Washington, DC Fuel Cell Technologies Program Overview Dr. Sunita Satyapal Director, Fuel Cell Technologies Office Energy Efficiency and Renewable Energy U.S. Department of Energy 3/20/2012 2 | Fuel Cell Technologies Program eere.energy.gov Overview Fuel Cells - An Emerging Global Industry Clean Energy Patent Growth Index [1] shows that fuel cell patents lead in the clean energy field with over 950 fuel cell patents issued in 2011. * Nearly double the second place holder,

  20. Fuel Cell Technologies Program Overview

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    IEA HIA Hydrogen Safety Stakeholder Workshop Bethesda, Maryland Fuel Cell Technologies Program Overview Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 10/2/2012 2 | Fuel Cell Technologies Program eere.energy.gov Overview Fuel Cells - An Emerging Global Industry Clean Energy Patent Growth Index [1] shows that fuel cell patents lead in the clean energy field with over 950 fuel cell patents issued in 2011. * Nearly double the second place holder, solar,

  1. Fuel Cell 101

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cell 101 Don Hoffman Don Hoffman Ship Systems & Engineering Research Division March 2011 Distribution Statement A: Approved for public release; distribution is unlimited. Fuel Cell Operation * A Fuel Cell is an electrochemical power source * It supplies electricity by combining hydrogen and oxygen electrochemically without combustion. * It is configured like a battery with anode and cathode. * Unlike a battery, it does not run down or require recharging and will produce electricity and will

  2. Microbial fuel cell treatment of fuel process wastewater (Patent...

    Office of Scientific and Technical Information (OSTI)

    Microbial fuel cell treatment of fuel process wastewater Title: Microbial fuel cell treatment of fuel process wastewater The present invention is directed to a method for cleansing ...

  3. Microbial fuel cell treatment of fuel process wastewater (Patent...

    Office of Scientific and Technical Information (OSTI)

    Microbial fuel cell treatment of fuel process wastewater Title: Microbial fuel cell treatment of fuel process wastewater You are accessing a document from the Department of ...

  4. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric...

    Broader source: Energy.gov (indexed) [DOE]

    Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs)" held on June 24, 2014. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles ...

  5. Fuel Station of the Future- Innovative Approach to Fuel Cell...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Station of the Future- Innovative Approach to Fuel Cell Technology Unveiled in California Fuel Station of the Future- Innovative Approach to Fuel Cell Technology Unveiled in ...

  6. Internet Fuel Cells Forum

    SciTech Connect (OSTI)

    Sudhoff, Frederick A.

    1996-08-01

    The rapid development and integration of the Internet into the mainstream of professional life provides the fuel cell industry with the opportunity to share new ideas with unprecedented capabilities. The U.S. Department of Energy's (DOE's) Morgantown Energy Technology Center (METC) has undertaken the task to maintain a Fuel Cell Forum on the Internet. Here, members can exchange ideas and information pertaining to fuel cell technologies. The purpose of this forum is to promote a better understanding of fuel cell concepts, terminology, processes, and issues relating to commercialization of fuel cell power technology. The Forum was developed by METC to provide those interested with fuel cell conference information for its current concept of exchanging ideas and information pertaining to fuel cells. Last August, the Forum expanded to an on-line and world-wide network. There are 250 members, and membership is growing at a rate of several new subscribers per week. The forum currently provides updated conference information and interactive information exchange. Forum membership is encouraged from utilities, industry, universities, and government. Because of the public nature of the internet, business sensitive, confidential, or proprietary information should not be placed on this system. The Forum is unmoderated; therefore, the views and opinions of authors expressed in the forum do not necessarily state or reflect those of the U.S. government or METC.

  7. DOE Fuel Cell Technology Office

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fuel Cell Technology Office - Sandia Energy Energy Search Icon Sandia Home Locations ... SunShot Grand Challenge: Regional Test Centers DOE Fuel Cell Technology Office Home...

  8. Hydrogen and Fuel Cell Activities

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Activities Mr. Pete Devlin U.S. Department of Energy Fuel Cell Technologies Program Market Transformation Manager Stationary Fuel Cell Applications First National Bank of Omaha...

  9. Fuel Cell Technologies Office: Publications

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cell Technologies Office EERE Fuel Cell Technologies Office Share this resource Publications Advanced Search Browse by Topic Mail Requests Help Feature featured product...

  10. Comparison of Fuel Cell Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Information More information on the Fuel Cell Technologies Offce is available at http:www.hydrogenandfuelcells.energy.gov. Fuel Cell Type Common Electrolyte Operating ...

  11. Manufacturing Fuel Cell Manhattan Project

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Manufacturing Fuel Cell Manhattan Project Presented by the Benchmarking and Best Practices ... in providing valued information on affordable and implementable fuel cell technology. ...

  12. INFOGRAPHIC: The Fuel Cell Electric Vehicle | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    INFOGRAPHIC: The Fuel Cell Electric Vehicle INFOGRAPHIC: The Fuel Cell Electric Vehicle INFOGRAPHIC: The Fuel Cell Electric Vehicle This infographic shows how fuel cell electric vehicles (FCEVs) work and some of the benefits of FCEVs, such as how they reduce greenhouse gas emissions, emit only water, and operate efficiently. INFOGRAPHIC: The Fuel Cell Electric Vehicle (FCEV) (497.65 KB) More Documents & Publications Amped Up! Volume 1, No. 4: The Transportation Issue Fuel Cell Technologies

  13. Fuel Cell Technologies Office Reaches Major Patent Milestone | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Fuel Cell Technologies Office Reaches Major Patent Milestone Fuel Cell Technologies Office Reaches Major Patent Milestone January 9, 2015 - 10:01am Addthis Fuel Cell Technologies Office Reaches Major Patent Milestone Sunita Satyapal Director, Fuel Cell Technologies Office Fuel cells are an emerging technology that can provide heat and electricity to buildings and power for vehicles while emitting nothing but water. To bring more high-impact fuel cell innovations to the marketplace,

  14. Alternative Fuels Data Center: Fuel Cell Electric Vehicles

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Hydrogen Printable Version Share this resource Send a link to Alternative Fuels Data Center: Fuel Cell Electric Vehicles to someone by E-mail Share Alternative Fuels Data Center: Fuel Cell Electric Vehicles on Facebook Tweet about Alternative Fuels Data Center: Fuel Cell Electric Vehicles on Twitter Bookmark Alternative Fuels Data Center: Fuel Cell Electric Vehicles on Google Bookmark Alternative Fuels Data Center: Fuel Cell Electric Vehicles on Delicious Rank Alternative Fuels Data Center: Fuel

  15. Fuel cell generator energy dissipator

    DOE Patents [OSTI]

    Veyo, Stephen Emery; Dederer, Jeffrey Todd; Gordon, John Thomas; Shockling, Larry Anthony

    2000-01-01

    An apparatus and method are disclosed for eliminating the chemical energy of fuel remaining in a fuel cell generator when the electrical power output of the fuel cell generator is terminated. During a generator shut down condition, electrically resistive elements are automatically connected across the fuel cell generator terminals in order to draw current, thereby depleting the fuel

  16. Rapidly refuelable fuel cell

    DOE Patents [OSTI]

    Joy, Richard W. (Santa Clara, CA)

    1983-01-01

    This invention is directed to a metal-air fuel cell where the consumable metal anode is movably positioned in the cell and an expandable enclosure, or bladder, is used to press the anode into contact with separating spacers between the cell electrodes. The bladder may be depressurized to allow replacement of the anode when consumed.

  17. Hydrogen Fuel Cell Demonstration ...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Brothers, Ltd., at their facility in the Port of Honolulu. The pilot hydrogen fuel cell unit will be used in place of a diesel generator currently used to provide power for...

  18. Ohio Fuel Cell Initiative

    Broader source: Energy.gov [DOE]

    Presented at the Technology Transition Corporation and U.S. Department of Energy Webinar: The Top 5 Fuel Cell States: Why Local Policies Mean Green Growth, June 21, 2011.

  19. Financing Fuel Cells

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    briefing papers and materials for state policymakers and others on the Hydrogen and Fuel Cells Project page at www.cleanenergystates.org 2 A nonprofit coalition of state and ...

  20. Fuel cell system for transportation applications

    DOE Patents [OSTI]

    Kumar, R.; Ahmed, S.; Krumpelt, M.; Myles, K.M.

    1993-09-28

    A propulsion system is described for a vehicle having pairs of front and rear wheels and a fuel tank. An electrically driven motor having an output shaft operatively connected to at least one of said pair of wheels is connected to a fuel cell having a positive electrode and a negative electrode separated by an electrolyte for producing dc power to operate the motor. A partial oxidation reformer is connected both to the fuel tank and to the fuel cell and receives hydrogen-containing fuel from the fuel tank and uses water and air for partially oxidizing and reforming the fuel in the presence of an oxidizing catalyst and a reforming catalyst to produce a hydrogen-containing gas. The hydrogen-containing gas is sent from the partial oxidation reformer to the fuel cell negative electrode while air is transported to the fuel cell positive electrode to produce dc power for operating the electric motor. 3 figures.

  1. Fuel Cell Development Status

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Development Status Michael Short Systems Engineering Manager United Technologies Corporation Research Center Hamilton Sundstrand UTC Power UTC Fire & Security Fortune 50 corporation $52.9B in annual sales in 2009 ~60% of Sales are in building technologies Transportation Stationary Fuel Cells Space & Defense * Fuel cell technology leader since 1958 * ~ 550 employees * 768+ Active U.S. patents, more than 300 additional U.S. patents pending * Global leader in efficient, reliable, and

  2. Compliant fuel cell system

    DOE Patents [OSTI]

    Bourgeois, Richard Scott; Gudlavalleti, Sauri

    2009-12-15

    A fuel cell assembly comprising at least one metallic component, at least one ceramic component and a structure disposed between the metallic component and the ceramic component. The structure is configured to have a lower stiffness compared to at least one of the metallic component and the ceramic component, to accommodate a difference in strain between the metallic component and the ceramic component of the fuel cell assembly.

  3. Ceramic Fuel Cells (SOFC)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    H2/FC Manufacturing R&D Workshop J. David Carter, PhD Chemical Sciences and Engineering Argonne National Laboratory Thursday, August 11, 2011 Ceramic Fuel Cells (SOFC) Manufacturing Fuel Cell Manhattan Project: * Joe Bonadies - Delphi * Rick Kerr - Delphi * David Carter - Argonne * Aaron Crumm - AMI * Randy Petri - Versa Power * Jolyon Rawson - Acumentrics * Marc Gietter - Army-CERDEC * Scott Swartz - NexTech Materials * Eric Stanfield - NIST * Mike Ulsh - NREL / DOE * Matt Steinbroner -

  4. Composite fuel cell membranes

    DOE Patents [OSTI]

    Plowman, Keith R. (Lake Jackson, TX); Rehg, Timothy J. (Lake Jackson, TX); Davis, Larry W. (West Columbia, TX); Carl, William P. (Marble Falls, TX); Cisar, Alan J. (Cypress, TX); Eastland, Charles S. (West Columbia, TX)

    1997-01-01

    A bilayer or trilayer composite ion exchange membrane suitable for use in a fuel cell. The composite membrane has a high equivalent weight thick layer in order to provide sufficient strength and low equivalent weight surface layers for improved electrical performance in a fuel cell. In use, the composite membrane is provided with electrode surface layers. The composite membrane can be composed of a sulfonic fluoropolymer in both core and surface layers.

  5. Composite fuel cell membranes

    DOE Patents [OSTI]

    Plowman, K.R.; Rehg, T.J.; Davis, L.W.; Carl, W.P.; Cisar, A.J.; Eastland, C.S.

    1997-08-05

    A bilayer or trilayer composite ion exchange membrane is described suitable for use in a fuel cell. The composite membrane has a high equivalent weight thick layer in order to provide sufficient strength and low equivalent weight surface layers for improved electrical performance in a fuel cell. In use, the composite membrane is provided with electrode surface layers. The composite membrane can be composed of a sulfonic fluoropolymer in both core and surface layers.

  6. Infographic: The Fuel Cell Electric Vehicle (FCEV)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    The Fuel Cell Electric Vehicle (FCEV) FCEVs are available now in southern California and coming soon to a neighborhood near you. as fuel cells can be added to the stack to increase power Scales Up Easily Gasoline H₂ from natural gas H₂ from Wind even at highway speeds, since there are no mechanical gears or combustion Runs Quietly from the tailpipe Emits Only Water * natural gas * water (electrolysis) * biomass * waste products Uses Domestic Fuel Reduces Greenhouse Gas Emissions 50% 90%

  7. STAGING OF FUEL CELLS - PHASE II

    SciTech Connect (OSTI)

    Per Onnerud; Suresh Sriramulu

    2002-08-29

    TIAX has executed a laboratory-based development program aiming at the improvement of stationary fuel cell systems. The two-year long development program resulted in an improved understanding of staged fuel cells and inorganic proton conductors through evaluation of results from a number of laboratory tasks: (1) Development of a fuel cell modeling tool--Multi-scale model was developed, capable of analyzing the effects of materials and operating conditions; and this model allowed studying various ''what-if'' conditions for hypothetically staged fuel cells; (2) Study of new high temperature proton conductor--TIAX discovery of a new class of sulfonated inorganics capable of conducting protons when exposed to water; and study involved synthesis and conductivity measurements of novel compounds up to 140 C; (3) Electrochemical fuel cell measurements--the feasibility of staged fuel cells was tested in TIAX's fuel cell laboratories experimental design was based on results from modeling.

  8. DOE Fuel Cell Technologies Program Record, Record # 11003, Fuel...

    Energy Savers [EERE]

    Program Record, Record 11003, Fuel Cell Stack Durability DOE Fuel Cell Technologies Program Record, Record 11003, Fuel Cell Stack Durability Dated May 3, 2012, this program ...

  9. Maritime Hydrogen Fuel Cell project

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... SunShot Grand Challenge: Regional Test Centers Maritime Hydrogen Fuel Cell project HomeTag:Maritime Hydrogen Fuel Cell project - Pete Devlin, of the Department of Energy's Fuel ...

  10. Fuel Cell Technologies Office Budget | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    About the Fuel Cell Technologies Office » Fuel Cell Technologies Office Budget Fuel Cell Technologies Office Budget The Fuel Cell Technologies Office receives appropriations from Energy and Water Development. The office's major activities and budget are outlined below. Fuel Cell Technologies Office (thousands of dollars) Hydrogen Fuel R&D Hydrogen Production and Delivery R&D: Research and develop advanced technologies for producing and delivering hydrogen. Feedstocks include natural gas

  11. Seventh Edition Fuel Cell Handbook

    SciTech Connect (OSTI)

    NETL

    2004-11-01

    Provides an overview of fuel cell technology and research projects. Discusses the basic workings of fuel cells and their system components, main fuel cell types, their characteristics, and their development status, as well as a discussion of potential fuel cell applications.

  12. Breakthrough Vehicle Development - Fuel Cells

    Fuel Cell Technologies Publication and Product Library (EERE)

    Document describing research and development program for fuel cell power systems for transportation applications.

  13. Fuel dissipater for pressurized fuel cell generators

    DOE Patents [OSTI]

    Basel, Richard A.; King, John E.

    2003-11-04

    An apparatus and method are disclosed for eliminating the chemical energy of fuel remaining in a pressurized fuel cell generator (10) when the electrical power output of the fuel cell generator is terminated during transient operation, such as a shutdown; where, two electrically resistive elements (two of 28, 53, 54, 55) at least one of which is connected in parallel, in association with contactors (26, 57, 58, 59), a multi-point settable sensor relay (23) and a circuit breaker (24), are automatically connected across the fuel cell generator terminals (21, 22) at two or more contact points, in order to draw current, thereby depleting the fuel inventory in the generator.

  14. NREL: Hydrogen and Fuel Cells Research - Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Projects Photo of person at work in laboratory setting. NREL scientist tests a photoelectrochemical water-splitting system used for renewable hydrogen production. Photo by Dennis Schroeder, NREL NREL hydrogen and fuel cell research projects support the development and adoption of cost-effective, high-performance fuel cell systems and sustainable hydrogen technologies for transportation, stationary, and portable applications. Learn about our projects: Fuel cells Hydrogen production and delivery

  15. Corrugated Membrane Fuel Cell Structures | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Corrugated Membrane Fuel Cell Structures Corrugated Membrane Fuel Cell Structures These slides were presented at the 2010 New Fuel Cell Projects Meeting on September 28, 2010. 4_ion_power_grot.pdf (227.13 KB) More Documents & Publications Breakout Group 3: Water Management US DRIVE Fuel Cell Technical Team Roadmap Automotive Perspective on PEM Evaluation

  16. NREL: Hydrogen and Fuel Cells Research - Fuel Cell System Contaminants...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    System Contaminants Material Screening Data NREL designed this interactive material selector tool to help fuel cell developers and material suppliers explore the results of fuel ...

  17. Fuel Cell Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cells » Fuel Cell Systems Fuel Cell Systems The design of fuel cell systems is complex, and can vary significantly depending upon fuel cell type and application. However, several basic components are found in many fuel cell systems: Fuel cell stack Fuel processor Power conditioners Air compressors Humidifiers Fuel Cell Stack The fuel cell stack is the heart of a fuel cell power system. It generates electricity in the form of direct current (DC) from electro-chemical reactions that take place in

  18. Fuel cell system

    DOE Patents [OSTI]

    Early, Jack; Kaufman, Arthur; Stawsky, Alfred

    1982-01-01

    A fuel cell system is comprised of a fuel cell module including sub-stacks of series-connected fuel cells, the sub-stacks being held together in a stacked arrangement with cold plates of a cooling means located between the sub-stacks to function as electrical terminals. The anode and cathode terminals of the sub-stacks are connected in parallel by means of the coolant manifolds which electrically connect selected cold plates. The system may comprise a plurality of the fuel cell modules connected in series. The sub-stacks are designed to provide a voltage output equivalent to the desired voltage demand of a low voltage, high current DC load such as an electrolytic cell to be driven by the fuel cell system. This arrangement in conjunction with switching means can be used to drive a DC electrical load with a total voltage output selected to match that of the load being driven. This arrangement eliminates the need for expensive voltage regulation equipment.

  19. NREL: Hydrogen and Fuel Cells Research - Fuel Cells

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cells Photo of scientific equipment in a laboratory setting. NREL scientist applies catalyst layer to a fuel cell through a spray process that delivers a more even distribution of material, improving performance. Photo by Dennis Schroeder, NREL What is a fuel cell? A single fuel cell consists of an electrolyte sandwiched between two electrodes. Bipolar plates on either side of the cell help distribute gases and serve as current collectors. Depending on the application, a fuel cell stack may

  20. Fuel Processors for PEM Fuel Cells

    SciTech Connect (OSTI)

    Levi T. Thompson

    2008-08-08

    Fuel cells are being developed to power cleaner, more fuel efficient automobiles. The fuel cell technology favored by many automobile manufacturers is PEM fuel cells operating with H2 from liquid fuels like gasoline and diesel. A key challenge to the commercialization of PEM fuel cell based powertrains is the lack of sufficiently small and inexpensive fuel processors. Improving the performance and cost of the fuel processor will require the development of better performing catalysts, new reactor designs and better integration of the various fuel processing components. These components and systems could also find use in natural gas fuel processing for stationary, distributed generation applications. Prototype fuel processors were produced, and evaluated against the Department of Energy technical targets. Significant advances were made by integrating low-cost microreactor systems, high activity catalysts, π-complexation adsorbents, and high efficiency microcombustor/microvaporizers developed at the University of Michigan. The microreactor system allowed (1) more efficient thermal coupling of the fuel processor operations thereby minimizing heat exchanger requirements, (2) improved catalyst performance due to optimal reactor temperature profiles and increased heat and mass transport rates, and (3) better cold-start and transient responses.

  1. Energy 101: Fuel Cell Technology | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cell Technology Energy 101: Fuel Cell Technology

  2. Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Emissions

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Hydrogen Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Emissions to someone by E-mail Share Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Emissions on Facebook Tweet about Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Emissions on Twitter Bookmark Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Emissions on Google Bookmark Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Emissions on

  3. Fuel cell system combustor

    DOE Patents [OSTI]

    Pettit, William Henry

    2001-01-01

    A fuel cell system including a fuel reformer heated by a catalytic combustor fired by anode and cathode effluents. The combustor includes a turbulator section at its input end for intimately mixing the anode and cathode effluents before they contact the combustors primary catalyst bed. The turbulator comprises at least one porous bed of mixing media that provides a tortuous path therethrough for creating turbulent flow and intimate mixing of the anode and cathode effluents therein.

  4. Automotive Fuel Cell Corporation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fuel Cell Corporation n SNL researcher Cy Fujimoto demonstrates his new flexible hydrocarbon polymer electrolyte mem- brane, which could be a key factor in realizing a hydrogen car. The close partnership between Sandia and AFCC has resulted in a very unique and promising technology for future automotive applications. Dr. Rajeev Vohra Manager R&D AFCC Hydrocarbon Membrane Fuels the Suc- cess of Future Generation Vehicles While every car manufacturer, such as GM and Ford, has developed their

  5. Fuel cell system configurations

    DOE Patents [OSTI]

    Kothmann, Richard E.; Cyphers, Joseph A.

    1981-01-01

    Fuel cell stack configurations having elongated polygonal cross-sectional shapes and gaskets at the peripheral faces to which flow manifolds are sealingly affixed. Process channels convey a fuel and an oxidant through longer channels, and a cooling fluid is conveyed through relatively shorter cooling passages. The polygonal structure preferably includes at least two right angles, and the faces of the stack are arranged in opposite parallel pairs.

  6. Fuel processor for fuel cell power system

    DOE Patents [OSTI]

    Vanderborgh, Nicholas E.; Springer, Thomas E.; Huff, James R.

    1987-01-01

    A catalytic organic fuel processing apparatus, which can be used in a fuel cell power system, contains within a housing a catalyst chamber, a variable speed fan, and a combustion chamber. Vaporized organic fuel is circulated by the fan past the combustion chamber with which it is in indirect heat exchange relationship. The heated vaporized organic fuel enters a catalyst bed where it is converted into a desired product such as hydrogen needed to power the fuel cell. During periods of high demand, air is injected upstream of the combustion chamber and organic fuel injection means to burn with some of the organic fuel on the outside of the combustion chamber, and thus be in direct heat exchange relation with the organic fuel going into the catalyst bed.

  7. 2008 Fuel Cell Technologies Market Report

    SciTech Connect (OSTI)

    Vincent, B.

    2010-06-30

    Fuel cells are electrochemical devices that combine hydrogen and oxygen to produce electricity, water, and heat. Unlike batteries, fuel cells continuously generate electricity, as long as a source of fuel is supplied. Moreover, fuel cells do not burn fuel, making the process quiet, pollution-free and two to three times more efficient than combustion. Fuel cell systems can be a truly zero-emission source of electricity, if the hydrogen is produced from non-polluting sources. Global concerns about climate change, energy security, and air pollution are driving demand for fuel cell technology. More than 630 companies and laboratories in the United States are investing $1 billion a year in fuel cells or fuel cell component technologies. This report provides an overview of trends in the fuel cell industry and markets, including product shipments, market development, and corporate performance. It also provides snapshots of select fuel cell companies, including general business strategy and market focus, as well as, financial information for select publicly-traded companies.

  8. 2008 Fuel Cell Technologies Market Report

    SciTech Connect (OSTI)

    DOE

    2010-06-01

    Fuel cells are electrochemical devices that combine hydrogen and oxygen to produce electricity, water, and heat. Unlike batteries, fuel cells continuously generate electricity, as long as a source of fuel is supplied. Moreover, fuel cells do not burn fuel, making the process quiet, pollution-free and two to three times more efficient than combustion. Fuel cell systems can be a truly zero-emission source of electricity, if the hydrogen is produced from non-polluting sources. Global concerns about climate change, energy security, and air pollution are driving demand for fuel cell technology. More than 630 companies and laboratories in the United States are investing $1 billion a year in fuel cells or fuel cell component technologies. This report provides an overview of trends in the fuel cell industry and markets, including product shipments, market development, and corporate performance. It also provides snapshots of select fuel cell companies, including general business strategy and market focus, as well as, financial information for select publicly-traded companies.

  9. Careers in Fuel Cell Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Careers In Fuel Cell Technologies Existing and emerging fuel cell applications hold large job growth potential. Fuel cells are among the promising technologies that are expected to transform our energy sector. They represent highly efficient and fuel- flexible technologies that offer diverse benefits. For example, fuel cells can be used in a wide range of applications- from portable electronics, to combined heat and power (CHP) units used for distributed electricity generation, to passenger

  10. Fuel cell power supply with oxidant and fuel gas switching

    DOE Patents [OSTI]

    McElroy, James F.; Chludzinski, Paul J.; Dantowitz, Philip

    1987-01-01

    This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation.

  11. Fuel cell power supply with oxidant and fuel gas switching

    DOE Patents [OSTI]

    McElroy, J.F.; Chludzinski, P.J.; Dantowitz, P.

    1987-04-14

    This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation. 2 figs.

  12. California Fuel Cell Partnership: Alternative Fuels Research

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cell Partnership - Alternative Fuels Research TNS Automotive Chris White Communications Director cwhite@cafcp.org 2 TNS Automotive for California Fuel Cell Partnership Background CaFCP conducted annual public opinion surveys Administered by phone as part of an "omnibus" survey Asked only about H2 and FCVs Gauged knowledge 2008 survey to gauge opinions, attitudes and identify trends Important elements included: Larger, more diverse panel with defined demographics "With

  13. Fuel Cells Go Live

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    green h y d r o g e n f u e l i n g POWer Fuel Cells Go live A closer look at the requirements to create a hydrogen-based warehouse M anagers of distribution centers are always on the lookout for new ways to gain competitive advantage through increased operational efficiency, productivity and worker safety. Around North America, some are finding success by integrating commercially available hydrogen fuel cell systems into their lift truck fleets. For operations with large fleets of electric lift

  14. Internal reforming fuel cell assembly with simplified fuel feed

    SciTech Connect (OSTI)

    Farooque, Mohammad; Novacco, Lawrence J.; Allen, Jeffrey P.

    2001-01-01

    A fuel cell assembly in which fuel cells adapted to internally reform fuel and fuel reformers for reforming fuel are arranged in a fuel cell stack. The fuel inlet ports of the fuel cells and the fuel inlet ports and reformed fuel outlet ports of the fuel reformers are arranged on one face of the fuel cell stack. A manifold sealing encloses this face of the stack and a reformer fuel delivery system is arranged entirely within the region between the manifold and the one face of the stack. The fuel reformer has a foil wrapping and a cover member forming with the foil wrapping an enclosed structure.

  15. Hydrogen and Fuel Cell Activities

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    5/2011 eere.energy.gov 5 th International Conference on Polymer Batteries & Fuel Cells Argonne, Illinois Hydrogen and Fuel Cell Activities Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager August 4, 2011 2 | Fuel Cell Technologies Program Source: US DOE 8/5/2011 eere.energy.gov Fuel Cells: Benefits & Market Potential The Role of Fuel Cells Key Benefits Very High Efficiency Reduced CO 2 Emissions * 35-50%+ reductions for CHP systems (>80% with

  16. DOE Fuel Cell Technologies Office

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    DOE Fuel Cell Technologies Office Fuel Cell Seminar & Energy Exposition Columbus, Ohio Dr. Sunita Satyapal Director Fuel Cell Technologies Office Energy Efficiency and Renewable Energy U.S. Department of Energy October 22, 2013 2 | Fuel Cell Technologies Office eere.energy.gov This award is being accepted on behalf of the U.S. Department of Energy fuel cell and hydrogen programs Acknowledgements 3 | Fuel Cell Technologies Office eere.energy.gov 2000 * DOE Hydrogen R&D Program 2002 * DOE

  17. Energy 101: Fuel Cell Technology | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cell Technology Energy 101: Fuel Cell Technology Addthis Description Learn how fuel cell technology generates clean electricity from hydrogen to power our buildings and transportation-while emitting nothing but water. This video illustrates the fundamentals of fuel cell technology and its potential to supply our homes, offices, industries, and vehicles with sustainable, reliable energy. Topic Hydrogen Text Version Below is the text version for the Energy 101: Fuel Cell Technology video. The

  18. California Fuel Cell Partnership: Alternative Fuels Research | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Fuel Cell Partnership: Alternative Fuels Research California Fuel Cell Partnership: Alternative Fuels Research This presentation by Chris White of the California Fuel Cell Partnership provides information about alternative fuels research. cafcp_initiatives_call.pdf (133.97 KB) More Documents & Publications The Department of Energy Hydrogen and Fuel Cells Program Plan Vehicle Technologies Office Merit Review 2015: Alternative Fuel Station Locator Fuel Cell Buses in U.S. Transit

  19. NREL: Hydrogen and Fuel Cells Research - Stationary Fuel Cell...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... 26, 11515 Installed Eligible Cost per kW by Capacity (CHP Fuel Cell) CDP STAT 27, 11515 Range of ... decision making. (June 2016) Hydrogen and Fuel Cells for IT Equipment. ...

  20. Treatment of Fuel Process Wastewater Using Fuel Cells - Energy...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hydrogen and Fuel Cell Hydrogen and Fuel Cell Find More Like This Return to Search Treatment of Fuel Process Wastewater Using Fuel Cells Oak Ridge National Laboratory Contact ORNL ...

  1. Compact fuel cell

    DOE Patents [OSTI]

    Jacobson, Craig; DeJonghe, Lutgard C.; Lu, Chun

    2010-10-19

    A novel electrochemical cell which may be a solid oxide fuel cell (SOFC) is disclosed where the cathodes (144, 140) may be exposed to the air and open to the ambient atmosphere without further housing. Current collector (145) extends through a first cathode on one side of a unit and over the unit through the cathode on the other side of the unit and is in electrical contact via lead (146) with housing unit (122 and 124). Electrical insulator (170) prevents electrical contact between two units. Fuel inlet manifold (134) allows fuel to communicate with internal space (138) between the anodes (154 and 156). Electrically insulating members (164 and 166) prevent the current collector from being in electrical contact with the anode.

  2. Maritime Hydrogen Fuel Cell Project

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fuel Cell Project - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear

  3. Annular feed air breathing fuel cell stack

    DOE Patents [OSTI]

    Wilson, Mahlon S.; Neutzler, Jay K.

    1997-01-01

    A stack of polymer electrolyte fuel cells is formed from a plurality of unit cells where each unit cell includes fuel cell components defining a periphery and distributed along a common axis, where the fuel cell components include a polymer electrolyte membrane, an anode and a cathode contacting opposite sides of the membrane, and fuel and oxygen flow fields contacting the anode and the cathode, respectively, wherein the components define an annular region therethrough along the axis. A fuel distribution manifold within the annular region is connected to deliver fuel to the fuel flow field in each of the unit cells. The fuel distribution manifold is formed from a hydrophilic-like material to redistribute water produced by fuel and oxygen reacting at the cathode. In a particular embodiment, a single bolt through the annular region clamps the unit cells together. In another embodiment, separator plates between individual unit cells have an extended radial dimension to function as cooling fins for maintaining the operating temperature of the fuel cell stack.

  4. Cabot Fuel Cells | Open Energy Information

    Open Energy Info (EERE)

    Cabot Fuel Cells Jump to: navigation, search Name: Cabot Fuel Cells Place: Albuquerque, New Mexico Zip: 87113 Product: Cabot develops and manufactures advanced fuel cell...

  5. Hydrogen and Fuel Cells Success Stories

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    71 Hydrogen and Fuel Cells Success Stories en Doosan Fuel Cell Takes Closed Plant to Full Production http:energy.goveeresuccess-storiesarticlesdoosan-fuel-cell-takes-closed-p...

  6. Gore Fuel Cell Technologies | Open Energy Information

    Open Energy Info (EERE)

    Gore Fuel Cell Technologies Jump to: navigation, search Name: Gore Fuel Cell Technologies Place: Elkton, Maryland Zip: 21922-1488 Product: Gore Fuel Cell Technologies supplies the...

  7. Hydra Fuel Cell Corporation | Open Energy Information

    Open Energy Info (EERE)

    Fuel Cell Corporation Jump to: navigation, search Name: Hydra Fuel Cell Corporation Place: Beaverton, Oregon Product: Holding company for American Security Resources' fuel cell...

  8. Cornell Fuel Cell Institute | Open Energy Information

    Open Energy Info (EERE)

    Cornell Fuel Cell Institute Jump to: navigation, search Name: Cornell Fuel Cell Institute Place: Ithaca, New York Zip: 14850 Product: The Cornell Fuel Cell Institute (CFCI)...

  9. Fuel Cell Power | Open Energy Information

    Open Energy Info (EERE)

    Fuel Cell Power Place: United Kingdom Product: Information provider of fuel cells and their supporting infrastructure. References: Fuel Cell Power1 This article is a stub. You...

  10. US Fuel Cell Council | Open Energy Information

    Open Energy Info (EERE)

    US Fuel Cell Council Place: Washington DC, Washington, DC Zip: Washington Product: US Fuel Cell Council is a membership association of fuel cell industry dedicated to fostering the...

  11. Financing Fuel Cells | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cells Financing Fuel Cells Presented at the Clean Energy States Alliance and U.S. Department of Energy Webinar: Financing Fuel Cell Installations, August 30, 2011. ...

  12. Canadian Fuel Cell Commercialization Roadmap Update: Progress...

    Open Energy Info (EERE)

    Fuel Cell Commercialization Roadmap Update: Progress of Canada's Hydrogen and Fuel Cell Industry Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Canadian Fuel Cell...

  13. Fuel cell generator

    DOE Patents [OSTI]

    Makiel, Joseph M.

    1985-01-01

    A high temperature solid electrolyte fuel cell generator comprising a housing means defining a plurality of chambers including a generator chamber and a combustion products chamber, a porous barrier separating the generator and combustion product chambers, a plurality of elongated annular fuel cells each having a closed end and an open end with the open ends disposed within the combustion product chamber, the cells extending from the open end through the porous barrier and into the generator chamber, a conduit for each cell, each conduit extending into a portion of each cell disposed within the generator chamber, each conduit having means for discharging a first gaseous reactant within each fuel cell, exhaust means for exhausting the combustion product chamber, manifolding means for supplying the first gaseous reactant to the conduits with the manifolding means disposed within the combustion product chamber between the porous barrier and the exhaust means and the manifolding means further comprising support and bypass means for providing support of the manifolding means within the housing while allowing combustion products from the first and a second gaseous reactant to flow past the manifolding means to the exhaust means, and means for flowing the second gaseous reactant into the generator chamber.

  14. Air Breathing Direct Methanol Fuel Cell

    DOE Patents [OSTI]

    Ren; Xiaoming

    2003-07-22

    A method for activating a membrane electrode assembly for a direct methanol fuel cell is disclosed. The method comprises operating the fuel cell with humidified hydrogen as the fuel followed by running the fuel cell with methanol as the fuel.

  15. Organic fuel cells and fuel cell conducting sheets

    DOE Patents [OSTI]

    Masel, Richard I.; Ha, Su; Adams, Brian

    2007-10-16

    A passive direct organic fuel cell includes an organic fuel solution and is operative to produce at least 15 mW/cm.sup.2 when operating at room temperature. In additional aspects of the invention, fuel cells can include a gas remover configured to promote circulation of an organic fuel solution when gas passes through the solution, a modified carbon cloth, one or more sealants, and a replaceable fuel cartridge.

  16. Fuel Cell Projects Kickoff Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Break Transport 4:10 Transport Studies Enabling Efficiency Optimization of Cost-Competitive Fuel Cell Stacks James Cross, Nuvera 4:30 Fuel Cell Fundamentals at Low and Subzero ...

  17. Fuel Cell Vehicle Basics | NREL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fuel Cell Vehicle Basics Researchers are developing fuel cells that can be used in vehicles to provide electricity for propulsion as well as for a car's electric and electronic ...

  18. Air Liquide- Biogas & Fuel Cells

    Broader source: Energy.gov [DOE]

    Presentation about Air Liquide's biogas technologies and integration with fuel cells. Presented by Charlie Anderson, Air Liquide, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

  19. Fuel Cell Technical Team Roadmap

    SciTech Connect (OSTI)

    2013-06-01

    The Fuel Cell Technical Team promotes the development of a fuel cell power system for an automotive powertrain that meets the U.S. DRIVE Partnership (United States Driving Research and Innovation for Vehicle efficiency and Energy sustainability) goals.

  20. Manufacturing Fuel Cell Manhattan Project

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    to DOE Fuel Cell Manufacturing Workshop 2011 John Christensen, PE NREL Consultant DOE Fuel Cell Market Transformation Support August 11, 2011 Manufacturing Fuel Cell Manhattan Project √ Identify manufacturing cost drivers to achieve affordability √ Identify best practices in fuel cell manufacturing technology √ Identify manufacturing technology gaps √ Identify FC projects to address these gaps MFCMP Objectives Completed Final Report due out Nov 2010 B2PCOE Montana Tech SME's Industry

  1. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (FCEVs) | Department of Energy for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Download presentation slides from the DOE Fuel Cell Technologies Office webinar "Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs)" held on June 24, 2014. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Webinar Slides (3.28 MB) More Documents

  2. Fuel cell sub-assembly

    DOE Patents [OSTI]

    Chi, Chang V.

    1983-01-01

    A fuel cell sub-assembly comprising a plurality of fuel cells, a first section of a cooling means disposed at an end of the assembly and means for connecting the fuel cells and first section together to form a unitary structure.

  3. Fuel cell report to congress

    SciTech Connect (OSTI)

    None, None

    2003-02-28

    This report describes the status of fuel cells for Congressional committees. It focuses on the technical and economic barriers to the use of fuel cells in transportation, portable power, stationary, and distributed power generation applications, and describes the need for public-private cooperative programs to demonstrate the use of fuel cells in commercial-scale applications by 2012. (Department of Energy, February 2003).

  4. Fuel Cell Handbook, Fifth Edition

    SciTech Connect (OSTI)

    Energy and Environmental Solutions

    2000-10-31

    Progress continues in fuel cell technology since the previous edition of the Fuel Cell Handbook was published in November 1998. Uppermost, polymer electrolyte fuel cells, molten carbonate fuel cells, and solid oxide fuel cells have been demonstrated at commercial size in power plants. The previously demonstrated phosphoric acid fuel cells have entered the marketplace with more than 220 power plants delivered. Highlighting this commercial entry, the phosphoric acid power plant fleet has demonstrated 95+% availability and several units have passed 40,000 hours of operation. One unit has operated over 49,000 hours. Early expectations of very low emissions and relatively high efficiencies have been met in power plants with each type of fuel cell. Fuel flexibility has been demonstrated using natural gas, propane, landfill gas, anaerobic digester gas, military logistic fuels, and coal gas, greatly expanding market opportunities. Transportation markets worldwide have shown remarkable interest in fuel cells; nearly every major vehicle manufacturer in the U.S., Europe, and the Far East is supporting development. This Handbook provides a foundation in fuel cells for persons wanting a better understanding of the technology, its benefits, and the systems issues that influence its application. Trends in technology are discussed, including next-generation concepts that promise ultrahigh efficiency and low cost, while providing exceptionally clean power plant systems. Section 1 summarizes fuel cell progress since the last edition and includes existing power plant nameplate data. Section 2 addresses the thermodynamics of fuel cells to provide an understanding of fuel cell operation at two levels (basic and advanced). Sections 3 through 8 describe the six major fuel cell types and their performance based on cell operating conditions. Alkaline and intermediate solid state fuel cells were added to this edition of the Handbook. New information indicates that manufacturers have stayed

  5. Development of portable fuel cells

    SciTech Connect (OSTI)

    Nakatou, K.; Sumi, S.; Nishizawa, N.

    1996-12-31

    Sanyo Electric has been concentrating on developing a marketable portable fuel cell using phosphoric acid fuel cells (PAFC). Due to the fact that this power source uses PAFC that operate at low temperature around 100{degrees} C, they are easier to handle compared to conventional fuel cells that operate at around 200{degrees} C , they can also be expected to provide extended reliable operation because corrosion of the electrode material and deterioration of the electrode catalyst are almost completely nonexistent. This power source is meant to be used independently and stored at room temperature. When it is started up, it generates electricity itself using its internal load to raise the temperature. As a result, the phosphoric acid (the electolyte) absorbs the reaction water when the temperature starts to be raised (around room temperature). At the same time the concentration and volume of the phosphoric acid changes, which may adversely affect the life time of the cell. We have studied means for starting, operating PAFC stack using methods that can simply evaluate changes in the concentration of the electrolyte in the stack with the aim of improving and extending cell life and report on them in this paper.

  6. Fuel Cells Fact Sheet | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fact Sheet Fuel Cells Fact Sheet Fact sheet produced by the Fuel Cell Technologies Office describing fuel cell technologies. Fuel Cells Fact Sheet (545.14 KB) More Documents & ...

  7. Fuel Cells at NASCAR | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    at NASCAR Fuel Cells at NASCAR Download presentation slides from the DOE Fuel Cell Technologies Office webinar "Fuel Cells at NASCAR" held on April 17, 2014. Fuel Cells at NASCAR ...

  8. Fuel cell CO sensor

    DOE Patents [OSTI]

    Grot, Stephen Andreas; Meltser, Mark Alexander; Gutowski, Stanley; Neutzler, Jay Kevin; Borup, Rodney Lynn; Weisbrod, Kirk

    1999-12-14

    The CO concentration in the H.sub.2 feed stream to a PEM fuel cell stack is monitored by measuring current and/or voltage behavior patterns from a PEM-probe communicating with the reformate feed stream. Pattern recognition software may be used to compare the current and voltage patterns from the PEM-probe to current and voltage telltale outputs determined from a reference cell similar to the PEM-probe and operated under controlled conditions over a wide range of CO concentrations in the H.sub.2 fuel stream. A CO sensor includes the PEM-probe, an electrical discharge circuit for discharging the PEM-probe to monitor the CO concentration, and an electrical purging circuit to intermittently raise the anode potential of the PEM-probe's anode to at least about 0.8 V (RHE) to electrochemically oxidize any CO adsorbed on the probe's anode catalyst.

  9. Fuel Cell Financing Options

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    UTC Power Corporation 195 Governor's Highway South Windsor, CT Fuel Cell Financing Options (CESA/DOE Webinar - August 30, 2011) Paul J. Rescsanski, Manager, Business Finance Paul J. Rescsanski, Manager, Business Finance The UTC Power Advantage Strained Utility Grid, unreliable power * Significant Energy savings through: - 80 - 90% system efficiency - Combined heat and power * Payback in 3-5 years Sustainability and carbon reduction Rising energy costs * Assured power generated on-site: -

  10. Carbonate fuel cell matrix

    DOE Patents [OSTI]

    Farooque, Mohammad; Yuh, Chao-Yi

    1996-01-01

    A carbonate fuel cell matrix comprising support particles and crack attenuator particles which are made platelet in shape to increase the resistance of the matrix to through cracking. Also disclosed is a matrix having porous crack attenuator particles and a matrix whose crack attenuator particles have a thermal coefficient of expansion which is significantly different from that of the support particles, and a method of making platelet-shaped crack attenuator particles.

  11. Electrocatalysts for Fuel Cells

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Electrocatalysts for Fuel Cells June 2012 BROOKHAVEN NATIONAL LABORATORY Technology Description * Core-shell nanoparticles with a palladium or palladium alloy core coated by a monolayer of platinum * All platinum atoms on surface and participate in catalysis * Lattice contraction improves catalytic activity of platinum * Reduction of platinum reduces overall precious metal cost 2 BROOKHAVEN NATIONAL LABORATORY Technology Opportunity * One version of the platinum monolayer core-shell

  12. Fuel cell oxygen electrode

    DOE Patents [OSTI]

    Shanks, H.R.; Bevolo, A.J.; Danielson, G.C.; Weber, M.F.

    An oxygen electrode for a fuel cell utilizing an acid electrolyte has a substrate of an alkali metal tungsten bronze of the formula: A/sub x/WO/sub 3/ where A is an alkali metal and x is at least 0.2, which is covered with a thin layer of platinum tungsten bronze of the formula: Pt/sub y/WO/sub 3/ where y is at least 0.8.

  13. Fuel cell oxygen electrode

    DOE Patents [OSTI]

    Shanks, Howard R.; Bevolo, Albert J.; Danielson, Gordon C.; Weber, Michael F.

    1980-11-04

    An oxygen electrode for a fuel cell utilizing an acid electrolyte has a substrate of an alkali metal tungsten bronze of the formula: A.sub.x WO.sub.3 where A is an alkali metal and x is at least 0.2, which is covered with a thin layer of platinum tungsten bronze of the formula: Pt.sub.y WO.sub.3 where y is at least 0.8.

  14. Fuel cell current collector

    DOE Patents [OSTI]

    Katz, Murray; Bonk, Stanley P.; Maricle, Donald L.; Abrams, Martin

    1991-01-01

    A fuel cell has a current collector plate (22) located between an electrode (20) and a separate plate (25). The collector plate has a plurality of arches (26, 28) deformed from a single flat plate in a checkerboard pattern. The arches are of sufficient height (30) to provide sufficient reactant flow area. Each arch is formed with sufficient stiffness to accept compressive load and sufficient resiliently to distribute the load and maintain electrical contact.

  15. Carbonate fuel cell matrix

    DOE Patents [OSTI]

    Farooque, M.; Yuh, C.Y.

    1996-12-03

    A carbonate fuel cell matrix is described comprising support particles and crack attenuator particles which are made platelet in shape to increase the resistance of the matrix to through cracking. Also disclosed is a matrix having porous crack attenuator particles and a matrix whose crack attenuator particles have a thermal coefficient of expansion which is significantly different from that of the support particles, and a method of making platelet-shaped crack attenuator particles. 8 figs.

  16. Advanced Electrocatalysts for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    Presentation slides from the DOE Fuel Cell Technologies Office webinar, Advanced Electrocatalysts for PEM Fuel Cells, held February 12, 2013.

  17. Fuel cell generator with fuel electrodes that control on-cell fuel reformation

    DOE Patents [OSTI]

    Ruka, Roswell J.; Basel, Richard A.; Zhang, Gong

    2011-10-25

    A fuel cell for a fuel cell generator including a housing including a gas flow path for receiving a fuel from a fuel source and directing the fuel across the fuel cell. The fuel cell includes an elongate member including opposing first and second ends and defining an interior cathode portion and an exterior anode portion. The interior cathode portion includes an electrode in contact with an oxidant flow path. The exterior anode portion includes an electrode in contact with the fuel in the gas flow path. The anode portion includes a catalyst material for effecting fuel reformation along the fuel cell between the opposing ends. A fuel reformation control layer is applied over the catalyst material for reducing a rate of fuel reformation on the fuel cell. The control layer effects a variable reformation rate along the length of the fuel cell.

  18. Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Electric

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Availability Hydrogen Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Electric Availability to someone by E-mail Share Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Electric Availability on Facebook Tweet about Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Electric Availability on Twitter Bookmark Alternative Fuels Data Center: Hydrogen Fuel Cell Vehicle Electric Availability on Google Bookmark Alternative

  19. Fuel cell power system for utility vehicle

    SciTech Connect (OSTI)

    Graham, M.; Barbir, F.; Marken, F.; Nadal, M.

    1996-12-31

    Based on the experience of designing and building the Green Car, a fuel cell/battery hybrid vehicle, and Genesis, a hydrogen/oxygen fuel cell powered transporter, Energy Partners has developed a fuel cell power system for propulsion of an off-road utility vehicle. A 10 kW hydrogen/air fuel cell stack has been developed as a prototype for future mass production. The main features of this stack are discussed in this paper. Design considerations and selection criteria for the main components of the vehicular fuel cell system, such as traction motor, air compressor and compressor motor, hydrogen storage and delivery, water and heat management, power conditioning, and control and monitoring subsystem are discussed in detail.

  20. NREL: Hydrogen and Fuel Cells Research - Fuel Cell Manufacturing

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cell Manufacturing Photo of scientific equipment in laboratory setting. NREL's in-line diagnostics help industry identify defects in fuel cell components. This small-scale manufacturing line at NREL's Energy Systems Integration Facility can convey fuel cell component materials at speeds of 100 feet per minute. NREL's fuel cell manufacturing R&D focuses on improving quality-inspection practices for high-volume manufacturing processes to enable higher production volumes, increased reliability,

  1. High Temperature Fuel Cell Performance High Temperature Fuel Cell

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Performance of of Sulfonated Sulfonated Poly(phenylene Poly(phenylene) Proton) Proton Conducting Conducting Polymers | Department of Energy Cell Performance High Temperature Fuel Cell Performance of of Sulfonated Sulfonated Poly(phenylene Poly(phenylene) Proton) Proton Conducting Conducting Polymers High Temperature Fuel Cell Performance High Temperature Fuel Cell Performance of of Sulfonated Sulfonated Poly(phenylene Poly(phenylene) Proton) Proton Conducting Conducting Polymers Presentation

  2. Fuel Cell Power Plant Experience Naval Applications

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    clean Fuel Cell Power Plant Experience Naval Applications US Department of Energy/ Office of Naval Research Shipboard Fuel Cell Workshop Washington, DC March 29, 2011 FuelCell Energy, the FuelCell Energy logo, Direct FuelCell and "DFC" are all registered trademarks (®) of FuelCell Energy, Inc. *FuelCell Energy, Inc. *Renewable and Liquid Fuels Experience *HTPEM Fuel Cell Stack for Shipboard APU *Solid Oxide Experience and Applications DOE-ONR Workshop FuelCell Energy, the FuelCell

  3. Atomistic Simulation of Water Percolation and Proton Hopping in Nafion Fuel Cell Membrane

    SciTech Connect (OSTI)

    Devanathan, Ramaswami; Venkatnathan, Arun; Rousseau, Roger J.; Dupuis, Michel; Frigato, Tomaso; Gu, Wei; Helms, Volkhard H.

    2010-11-04

    We have performed a detailed analysis of water clustering and percolation in hydrated Nafion configurations generated by classical molecular dynamics simulations. Our results show that at low hydration levels H2O molecules are isolated and a continuous hydrogen-bonded network forms as the hydration level is increased. Our quantitative analysis has established a hydration level (λ) between 5 and 6 H2O/SO3- as the percolation threshold of Nafion. We have also examined the effect of such a network on proton transport by studying the structural diffusion of protons using the quantum hopping molecular dynamics method. The mean residence time of the proton on a water molecule decreases by two orders of magnitude when the λ value is increased from 5 to 15. The proton diffusion coefficient in Nafion at a λ value of 15 is about 1.1x10-5 cm2/s in agreement with experiment. The results provide quantitative atomic-level evidence of water network percolation in Nafion and its effect on proton conductivity.

  4. Fuel Cell Power Plants Renewable and Waste Fuels

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cell Power Plants Fuel Cell Power Plants Renewable and Waste Fuels DOE-DOD Workshop Washington, DC. January 13, 2011 reliable, efficient, ultra-clean FuelCell Energy, Inc. * ...

  5. Fuel Cell Power Plants Renewable and Waste Fuels | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Presentation by Frank Wolak, Fuel Cell Energy, at the Waste-to-Energy using Fuel Cells Workshop held Jan. 13, 2011 wastewolak.pdf (1.99 MB) More Documents & Publications Fuel Cell ...

  6. DOE Fuel Cell Subprogram (Presentation)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Table 3.4.4 Technical Targets a : Integrated Stationary PEM Fuel Cell Power Systems (5-250kW) Operating on Reformate a Includes fuel processor, stack and all ancillaries. b Ratio ...

  7. Fuel cell system with interconnect

    DOE Patents [OSTI]

    Liu, Zhien; Goettler, Richard; Delaforce, Philip Mark

    2016-03-08

    The present invention includes a fuel cell system having an interconnect that reduces or eliminates diffusion (leakage) of fuel and oxidant by providing an increased densification, by forming the interconnect as a ceramic/metal composite.

  8. Fuel cell cooler-humidifier plate

    SciTech Connect (OSTI)

    Vitale, N.G.; Jones, D.O.

    2000-05-23

    A cooler-humidifier plate for use in a proton exchange membrane (PEM) fuel cell stack assembly is provided. The cooler-humidifier plate combines functions of cooling and humidification within the fuel cell stack assembly, thereby providing a more compact structure, simpler manifolding, and reduced reject heat from the fuel cell. Coolant on the cooler side of the plate removes heat generated within the fuel cell assembly. Heat is also removed by the humidifier side of the plate for use in evaporating the humidification water. On the humidifier side of the plate, evaporating water humidifies reactant gas flowing over a moistened wick. After exiting the humidifier side of the plate, humidified reactant gas provides needed moisture to the proton exchange membranes used in the fuel cell stack assembly. The invention also provides a fuel cell plate that maximizes structural support within the fuel cell by ensuring that the ribs that form the boundaries of channels on one side of the plate have ends at locations that substantially correspond to the locations of ribs on the opposite side of the plate.

  9. Fuel cell cooler-humidifier plate

    DOE Patents [OSTI]

    Vitale, Nicholas G.; Jones, Daniel O.

    2000-01-01

    A cooler-humidifier plate for use in a proton exchange membrane (PEM) fuel cell stack assembly is provided. The cooler-humidifier plate combines functions of cooling and humidification within the fuel cell stack assembly, thereby providing a more compact structure, simpler manifolding, and reduced reject heat from the fuel cell. Coolant on the cooler side of the plate removes heat generated within the fuel cell assembly. Heat is also removed by the humidifier side of the plate for use in evaporating the humidification water. On the humidifier side of the plate, evaporating water humidifies reactant gas flowing over a moistened wick. After exiting the humidifier side of the plate, humidified reactant gas provides needed moisture to the proton exchange membranes used in the fuel cell stack assembly. The invention also provides a fuel cell plate that maximizes structural support within the fuel cell by ensuring that the ribs that form the boundaries of channels on one side of the plate have ends at locations that substantially correspond to the locations of ribs on the opposite side of the plate.

  10. NREL: Hydrogen and Fuel Cells Research - Fuel Cell Electric Vehicle

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Evaluations Fuel Cell Electric Vehicle Evaluations NREL's technology validation team analyzes hydrogen fuel cell electric vehicles (FCEVs) operating in a real-world setting to identify the current status of the technology, compare it to Department of Energy (DOE) performance and durability targets, and evaluate progress between multiple generations of technology, some of which will include commercial FCEVs for the first time. Current fuel cell electric vehicle evaluations build on the

  11. NREL: Hydrogen and Fuel Cells Research - National Fuel Cell Technology

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Evaluation Center National Fuel Cell Technology Evaluation Center The National Fuel Cell Technology Evaluation Center (NFCTEC) at NREL's Energy Systems Integration Facility (ESIF) plays a crucial role in NREL's independent, third-party analysis of hydrogen fuel cell technologies in real-world operation. The NFCTEC is designed for secure management, storage, and processing of proprietary data from industry. Access to the off-network NFCTEC is limited to NREL's Technology Validation Team,

  12. DOE Hydrogen & Fuel Cell Overview

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    t t 1 | Fuel Cell Technologies Program eere.energy.gov Fuel Cell Technologies Program DOE Hydrogen & Fuel Cell Overview Dr. Sunita Satyapal Program Manager U S D f E Overview U.S. Department of Energy Fuel Cell Technologies Program January 13, 2011 Fuel Cells for Diverse Applications 2 | Fuel Cell Technologies Program eere.energy.gov Fuel Cells - Where are we today? F l C ll f Fuel Cells for Stationary Power, Fuel Cells for Transportation In the U.S., there are currently: > 200 fuel cell

  13. NREL: Hydrogen and Fuel Cells Research - Fuel Cell Electric Bus...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fuel Cell Electric Bus Reliability Surpasses 2016 and Ultimate Technical Targets Project ... Applicable DOE Technical Target DOE and FTA have established performance, cost, and ...

  14. Fuel Quality Issues in Stationary Fuel Cell Systems

    Broader source: Energy.gov [DOE]

    This report, prepared by Argonne National Laboratory, looks at impurities encountered in stationary fuel cell systems, and the effects of the impurities on the fuel cells.

  15. Fuel cell having electrolyte

    DOE Patents [OSTI]

    Wright, Maynard K. (Bethel Park, PA)

    1989-01-01

    A fuel cell having an electrolyte control volume includes a pair of porous opposed electrodes. A maxtrix is positioned between the pair of electrodes for containing an electrolyte. A first layer of backing paper is positioned adjacent to one of the electrodes. A portion of the paper is substantially previous to the acceptance of the electrolyte so as to absorb electrolyte when there is an excess in the matrix and to desorb electrolyte when there is a shortage in the matrix. A second layer of backing paper is positioned adjacent to the first layer of paper and is substantially impervious to the acceptance of electrolyte.

  16. Carbonate fuel cell anodes

    DOE Patents [OSTI]

    Donado, R.A.; Hrdina, K.E.; Remick, R.J.

    1993-04-27

    A molten alkali metal carbonates fuel cell porous anode of lithium ferrite and a metal or metal alloy of nickel, cobalt, nickel/iron, cobalt/iron, nickel/iron/aluminum, cobalt/iron/aluminum and mixtures thereof wherein the total iron content including ferrite and iron of the composite is about 25 to about 80 percent, based upon the total anode, provided aluminum when present is less than about 5 weight percent of the anode. A process is described for production of the lithium ferrite containing anode by slipcasting.

  17. Carbonate fuel cell anodes

    DOE Patents [OSTI]

    Donado, Rafael A. (Chicago, IL); Hrdina, Kenneth E. (Glenview, IL); Remick, Robert J. (Bolingbrook, IL)

    1993-01-01

    A molten alkali metal carbonates fuel cell porous anode of lithium ferrite and a metal or metal alloy of nickel, cobalt, nickel/iron, cobalt/iron, nickel/iron/aluminum, cobalt/iron/aluminum and mixtures thereof wherein the total iron content including ferrite and iron of the composite is about 25 to about 80 percent, based upon the total anode, provided aluminum when present is less than about 5 weight percent of the anode. A process for production of the lithium ferrite containing anode by slipcasting.

  18. Hybrid Fuel Cell Technology Overview

    SciTech Connect (OSTI)

    None available

    2001-05-31

    For the purpose of this STI product and unless otherwise stated, hybrid fuel cell systems are power generation systems in which a high temperature fuel cell is combined with another power generating technology. The resulting system exhibits a synergism in which the combination performs with an efficiency far greater than can be provided by either system alone. Hybrid fuel cell designs under development include fuel cell with gas turbine, fuel cell with reciprocating (piston) engine, and designs that combine different fuel cell technologies. Hybrid systems have been extensively analyzed and studied over the past five years by the Department of Energy (DOE), industry, and others. These efforts have revealed that this combination is capable of providing remarkably high efficiencies. This attribute, combined with an inherent low level of pollutant emission, suggests that hybrid systems are likely to serve as the next generation of advanced power generation systems.

  19. Corrugated Membrane Fuel Cell Structures

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Corrugated Membrane Fuel Cell Structures Structures 2010 DOE Hydrogen Program Fuel Cell 2010 DOE Hydrogen Program Fuel Cell Project Kick-Off Principle Investigator: Dr. Stephen Grot Presenter: Dr. Walther Grot Ion Power, Inc September 28, 2010 September 28, 2010 This presentation does not contain any proprietary, confidential, or otherwise restricted information t Overview Timeline * Start Sept 1, 2010 E d A 31 2013 * End August 31, 2013 * 0% Complete Budget * * Total project funding Total

  20. Fuel cell design and assembly

    DOE Patents [OSTI]

    Myerhoff, Alfred

    1984-01-01

    The present invention is directed to a novel bipolar cooling plate, fuel cell design and method of assembly of fuel cells. The bipolar cooling plate used in the fuel cell design and method of assembly has discrete opposite edge and means carried by the plate defining a plurality of channels extending along the surface of the plate toward the opposite edges. At least one edge of the channels terminates short of the edge of the plate defining a recess for receiving a fastener.

  1. Ceramic Fuel Cells (SOFC) | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ceramic Fuel Cells (SOFC) Ceramic Fuel Cells (SOFC) Presented at the NREL Hydrogen and Fuel Cell Manufacturing R&D Workshop in Washington, DC, August 11-12, 2011. Ceramic Fuel Cells (SOFC) (1.09 MB) More Documents & Publications 2011 NREL/DOE Hydrogen and Fuel Cell Manufacturing R&D Workshop Report Manufacturing Fuel Cell Manhattan Project DOE Fuel Cell Pre-Solicitation Workshop - Breakout Group 3: HIGH TEMP (SOFC) SYSTEM AND BOP

  2. Fuel Cells Related Links | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cells » Fuel Cells Related Links Fuel Cells Related Links The following resources provide details about U.S. Department of Energy (DOE)-funded fuel cell activities, research plans and roadmaps, partnerships, and additional related links. DOE-Funded Fuel Cell Activities Each year, hydrogen and fuel cell projects funded by DOE's Hydrogen and Fuel Cells Program are reviewed for their merit during an Annual Merit Review and Peer Evaluation Meeting. View posters and presentations from the

  3. Energy Overview and A Perspective on Fuel Cell Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    HydrogenFuel Cells Wind Water Power Geothermal Energy Efficiency ... of energy; * increase efficiency and productivity of the existing energy infrastructure; ...

  4. New Fuel Cell Projects Meeting | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Laboratory Lightweight, Low-Cost PEM Fuel Cell Stacks (PDF 257 KB), J. Wainright, Case ... Low-Cost Manufacturable Microchannel Systems for Passive PEM Water Management (PDF ...

  5. PEM Fuel Cell Technology, Key Research Needs and Approaches ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PEM FUEL CELL TECHNOLOGY Key Research Needs and Approaches Tom Jarvi UTC Power South ... Stationary CHP 40-80,000 hr components - seals, membranes Water management Robust systems ...

  6. economic hydrogen fuel cell vehicles

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    economic hydrogen fuel cell vehicles - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future ...

  7. Molten carbonate fuel cell separator

    DOE Patents [OSTI]

    Nickols, Richard C.

    1986-09-02

    In a stacked array of molten carbonate fuel cells, a fuel cell separator is positioned between adjacent fuel cells to provide isolation as well as a conductive path therebetween. The center portion of the fuel cell separator includes a generally rectangular, flat, electrical conductor. Around the periphery of the flat portion of the separator are positioned a plurality of elongated resilient flanges which form a gas-tight seal around the edges of the fuel cell. With one elongated flange resiliently engaging a respective edge of the center portion of the separator, the sealing flanges, which are preferably comprised of a noncorrosive material such as an alloy of yttrium, iron, aluminum or chromium, form a tight-fitting wet seal for confining the corrosive elements of the fuel cell therein. This arrangement permits a good conductive material which may be highly subject to corrosion and dissolution to be used in combination with a corrosion-resistant material in the fuel cell separator of a molten carbonate fuel cell for improved fuel cell conductivity and a gas-tight wet seal.

  8. Molten carbonate fuel cell separator

    DOE Patents [OSTI]

    Nickols, R.C.

    1984-10-17

    In a stacked array of molten carbonate fuel cells, a fuel cell separator is positioned between adjacent fuel cells to provide isolation as well as a conductive path therebetween. The center portion of the fuel cell separator includes a generally rectangular, flat, electrical conductor. Around the periphery of the flat portion of the separator are positioned a plurality of elongated resilient flanges which form a gas-tight seal around the edges of the fuel cell. With one elongated flange resiliently engaging a respective edge of the center portion of the separator, the sealing flanges, which are preferably comprised of a noncorrosive material such as an alloy of yttrium, iron, aluminum or chromium, form a tight-fitting wet seal for confining the corrosive elements of the fuel cell therein. This arrangement permits a good conductive material which may be highly subject to corrosion and dissolution to be used in combination with a corrosion-resistant material in the fuel cell separator of a molten carbonate fuel cell for improved fuel cell conductivity and a gas-tight wet seal.

  9. CLIMATE CHANGE FUEL CELL PROGRAM

    SciTech Connect (OSTI)

    Steven A. Gabrielle

    2004-12-03

    This report discusses the first year of operation of a fuel cell power plant located at the Sheraton Edison Hotel, Edison, New Jersey. PPL EnergyPlus, LLC installed the plant under a contract with the Starwood Hotels & Resorts Worldwide, Inc. A DFC{reg_sign}300 fuel cell, manufactured by FuelCell Energy, Inc. of Danbury, CT was selected for the project. The fuel cell successfully operated from June 2003 to May 2004. This report discusses the performance of the plant during this period.

  10. Fuel Cell Power (FCPower) Model

    Broader source: Energy.gov (indexed) [DOE]

    tool for analyzing high-temperature, fuel cell-based tri- generation systems. 1 Key ... Performs hourly energy analysis and detailed grid time of use cost evaluations, which ...