National Library of Energy BETA

Sample records for hogen pem stationary

  1. HOGEN{trademark} proton exchange membrane hydrogen generators: Commercialization of PEM electrolyzers

    SciTech Connect (OSTI)

    Smith, W.F.; Molter, T.M.

    1997-12-31

    PROTON Energy Systems` new HOGEN series hydrogen generators are Proton Exchange Membrane (PEM) based water electrolyzers designed to generate 300 to 1000 Standard Cubic Feet Per Hour (SCFH) of high purity hydrogen at pressures up to 400 psi without the use of mechanical compressors. This paper will describe technology evolution leading to the HOGEN, identify system design performance parameters and describe the physical packaging and interfaces of HOGEN systems. PEM electrolyzers have served US and UK Navy and NASA needs for many years in a variety of diverse programs including oxygen generators for life support applications. In the late 1970`s these systems were advocated for bulk hydrogen generation through a series of DOE sponsored program activities. During the military buildup of the 1980`s commercial deployment of PEM hydrogen generators was de-emphasized as priority was given to new Navy and NASA PEM electrolysis systems. PROTON Energy Systems was founded in 1996 with the primary corporate mission of commercializing PEM hydrogen generators. These systems are specifically designed and priced to meet the needs of commercial markets and produced through manufacturing processes tailored to these applications. The HOGEN series generators are the first step along the path to full commercial deployment of PEM electrolyzer products for both industrial and consumer uses. The 300/1000 series are sized to meet the needs of the industrial gases market today and provide a design base that can transition to serve the needs of a decentralized hydrogen infrastructure tomorrow.

  2. Intergovernmental Advanced Stationary PEM Fuel Cell System Demonstration Final Report

    SciTech Connect (OSTI)

    Rich Chartrand

    2011-08-31

    A program to complete the design, construction and demonstration of a PEMFC system fuelled by Ethanol, LPG or NG for telecom applications was initiated in October 2007. Early in the program the economics for Ethanol were shown to be unfeasible and permission was given by DOE to focus on LPG only. The design and construction of a prototype unit was completed in Jun 2009 using commercially available PEM FC stack from Ballard Power Systems. During the course of testing, the high pressure drop of the stack was shown to be problematic in terms of control and stability of the reformer. Also, due to the power requirements for air compression the overall efficiency of the system was shown to be lower than a similar system using internally developed low pressure drop FC stack. In Q3 2009, the decision was made to change to the Plug power stack and a second prototype was built and tested. Overall net efficiency was shown to be 31.5% at 3 kW output. Total output of the system is 6 kW. Using the new stack hardware, material cost reduction of 63% was achieved over the previous Alpha design. During a November 2009 review meeting Plug Power proposed and was granted permission, to demonstrate the new, commercial version of Plug Power's telecom system at CERL. As this product was also being tested as part of a DOE Topic 7A program, this part of the program was transferred to the Topic 7A program. In Q32008, the scope of work of this program was expanded to include a National Grid demonstration project of a micro-CHP system using hightemperature PEM technology. The Gensys Blue system was cleared for unattended operation, grid connection, and power generation in Aug 2009 at Union College in NY state. The system continues to operate providing power and heat to Beuth House. The system is being continually evaluated and improvements to hardware and controls will be implemented as more is learned about the system's operation. The program is instrumental in improving the efficiency and

  3. PEM fuel cells for transportation and stationary power generation applications

    SciTech Connect (OSTI)

    Cleghorn, S.J.; Ren, X.; Springer, T.E.; Wilson, M.S.; Zawodzinski, C.; Zawodzinski, T.A. Jr.; Gottesfeld, S.

    1996-05-01

    We describe recent activities at LANL devoted to polymer electrolyte fuel cells in the contexts of stationary power generation and transportation applications. A low cost/high performance hydrogen or reformate/air stack technology is being developed based on ultralow Pt loadings and on non-machined, inexpensive elements for flow-fields and bipolar plates. On board methanol reforming is compared to the option of direct methanol fuel cells because of recent significant power density increases demonstrated in the latter.

  4. 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 ...

  5. PEM fuel cell durability studies

    SciTech Connect (OSTI)

    Borup, Rodney L; Davey, John R; Ofstad, Axel B; Xu, Hui

    2008-01-01

    The durability of polymer electrolyte membrane (PEM) fuel cells is a major barrier to the commercialization for stationary and transportation power applications. For transportation applications, the durability target for fuel cell power systems is a 5,000 hour lifespan and able to function over a range of vehicle operating conditions (-40{sup o} to +40{sup o}C). However, durability is difficult to quantify and improve because of the quantity and duration of testing required, and also because the fuel cell stack contains many components, for which the degradation mechanisms, component interactions and effects of operating conditions are not fully understood. These requirements have led to the development of accelerated testing protocols for PEM fuel cells. The need for accelerated testing methodology is exemplified by the times required for standard testing to reach their required targets: automotive 5,000 hrs = {approx} 7 months; stationary systems 40,000 hrs = {approx} 4.6 years. As new materials continue to be developed, the need for relevant accelerated testing increases. In this investigation, we examine the durability of various cell components, examine the effect of transportation operating conditions (potential cycling, variable RH, shut-down/start-up, freeze/thaw) and evaluate durability by accelerated durability protocols. PEM fuel cell durability testing is performed on single cells, with tests being conducted with steady-state conditions and with dynamic conditions using power cycling to simulate a vehicle drive cycle. Component and single-cell characterization during and after testing was conducted to identify changes in material properties and related failure mechanisms. Accelerated-testing experiments were applied to further examine material degradation.

  6. Demonstration of Next Generation PEM CHP Systems for Global Markets Using

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

    PBI Membrane Technology | Department of Energy Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI Membrane Technology Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI Membrane Technology Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 7a_plugpwr.pdf (22.69 KB) More Documents & Publications International Stationary Fuel Cell Demonstration Intergovernmental Stationary Fuel Cell System

  7. 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.

  8. PEM/SPE fuel cell

    DOE Patents [OSTI]

    Grot, S.A.

    1998-01-13

    A PEM/SPE fuel cell is described including a membrane-electrode assembly (MEA) having a plurality of oriented filament embedded the face thereof for supporting the MEA and conducting current therefrom to contiguous electrode plates. 4 figs.

  9. PEM/SPE fuel cell

    DOE Patents [OSTI]

    Grot, Stephen Andreas

    1998-01-01

    A PEM/SPE fuel cell including a membrane-electrode assembly (MEA) having a plurality of oriented filament embedded the face thereof for supporting the MEA and conducting current therefrom to contiguous electrode plates.

  10. PEM Stack Manufacturing: Industry Status

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

    2009 BALLARD POWER SYSTEMS INC. ALL RIGHTS RESERVED ... B A L L A R D P O W E R S Y S T E M S PEM Stack ... Courtesy Manhattan Project for Fuel Cell Manufacturing AUGUST ...

  11. Degradation Mechanisms and Accelerated Testing in PEM Fuel Cells

    SciTech Connect (OSTI)

    Borup, Rodney L.

    2011-01-01

    The durability of PEM fuel cells is a major barrier to the commercialization of these systems for stationary and transportation power applications. Although there has been recent progress in improving durability, further improvements are needed to meet the commercialization targets. Past improvements have largely been made possible because of the fundamental understanding of the underlying degradation mechanisms. By investigating component and cell degradation modes; defining the fundamental degradation mechanisms of components and component interactions new materials can be designed to improve durability. Various factors have been shown to affect the useful life of PEM fuel cells. Other issues arise from component optimization. Operational conditions (such as impurities in either the fuel or oxidant stream), cell environment, temperature (including subfreezing exposure), pressure, current, voltage, etc.; or transient versus continuous operation, including start-up and shutdown procedures, represent other factors that can affect cell performance and durability.

  12. Degradation mechanisms and accelerated testing in PEM fuel cells

    SciTech Connect (OSTI)

    Borup, Rodney L; Mukundan, Rangachary

    2010-01-01

    The durability of PEM fuel cells is a major barrier to the commercialization of these systems for stationary and transportation power applications. Although there has been recent progress in improving durability, further improvements are needed to meet the commercialization targets. Past improvements have largely been made possible because of the fundamental understanding of the underlying degradation mechanisms. By investigating component and cell degradation modes; defining the fundamental degradation mechanisms of components and component interactions new materials can be designed to improve durability. Various factors have been shown to affect the useful life of PEM fuel cells. Other issues arise from component optimization. Operational conditions (such as impurities in either the fuel and oxidant stream), cell environment, temperature (including subfreezing exposure), pressure, current, voltage, etc.; or transient versus continuous operation, including start-up and shutdown procedures, represent other factors that can affect cell performance and durability. The need for Accelerated Stress Tests (ASTs) can be quickly understood given the target lives for fuel cell systems: 5000 hours ({approx} 7 months) for automotive, and 40,000 hrs ({approx} 4.6 years) for stationary systems. Thus testing methods that enable more rapid screening of individual components to determine their durability characteristics, such as off-line environmental testing, are needed for evaluating new component durability in a reasonable turn-around time. This allows proposed improvements in a component to be evaluated rapidly and independently, subsequently allowing rapid advancement in PEM fuel cell durability. These tests are also crucial to developers in order to make sure that they do not sacrifice durability while making improvements in costs (e.g. lower platinum group metal [PGM] loading) and performance (e.g. thinner membrane or a GDL with better water management properties). To

  13. International Stationary Fuel Cell Demonstration | Department of Energy

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

    Stationary Fuel Cell Demonstration International Stationary Fuel Cell Demonstration This presentation by John Vogel of Plug Power was given at the New Fuel Cell Projects Meeting in February 2007. new_fc_vogel_plugpower.pdf (1.72 MB) More Documents & Publications PBI-Phosphoric Acid Based Membrane Electrode Assemblies: Status Update Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI Membrane Technology Open Discussion of Freeze Related Issues

  14. 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.

  15. Stationary Power

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

    Stationary Power - 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

  16. Corrosion resistant PEM fuel cell

    SciTech Connect (OSTI)

    Fronk, Matthew Howard; Borup, Rodney Lynn; Hulett, Jay S.; Brady, Brian K.; Cunningham, Kevin M.

    2002-01-01

    A PEM fuel cell having electrical contact elements comprising a corrosion-susceptible substrate metal coated with an electrically conductive, corrosion-resistant polymer containing a plurality of electrically conductive, corrosion-resistant filler particles. The substrate may have an oxidizable metal first layer (e.g., stainless steel) underlying the polymer coating.

  17. Corrosion resistant PEM fuel cell

    SciTech Connect (OSTI)

    Fronk, Matthew Howard; Borup, Rodney Lynn; Hulett, Jay S.; Brady, Brian K.; Cunningham, Kevin M.

    2011-06-07

    A PEM fuel cell having electrical contact elements comprising a corrosion-susceptible substrate metal coated with an electrically conductive, corrosion-resistant polymer containing a plurality of electrically conductive, corrosion-resistant filler particles. The substrate may have an oxidizable metal first layer (e.g., stainless steel) underlying the polymer coating.

  18. Novel, low-cost separator plates and flow-field elements for use in PEM fuel cells

    SciTech Connect (OSTI)

    Edlund, D.J.

    1996-12-31

    PEM fuel cells offer promise for a wide range of applications including vehicular (e.g., automotive) and stationary power generation. The performance and cost targets that must be met for PEM technology to be commercially successful varies to some degree with the application. However, in general the cost of PEM fuel cell stacks must be reduced substantially if they are to see widespread use for electrical power generation. A significant contribution to the manufactured cost of PEM fuel cells is the machined carbon plates that traditionally serve as bipolar separator plates and flow-field elements. In addition, carbon separator plates are inherently brittle and suffer from breakage due to shock, vibration, and improper handling. This report describes a bifurcated separator device with low resistivity, low manufacturing cost, compact size and durability.

  19. Development and validation of a two-phase, three-dimensional model for PEM fuel cells.

    SciTech Connect (OSTI)

    Chen, Ken Shuang

    2010-04-01

    The objectives of this presentation are: (1) To develop and validate a two-phase, three-dimensional transport modelfor simulating PEM fuel cell performance under a wide range of operating conditions; (2) To apply the validated PEM fuel cell model to improve fundamental understanding of key phenomena involved and to identify rate-limiting steps and develop recommendations for improvements so as to accelerate the commercialization of fuel cell technology; (3) The validated PEMFC model can be employed to improve and optimize PEM fuel cell operation. Consequently, the project helps: (i) address the technical barriers on performance, cost, and durability; and (ii) achieve DOE's near-term technical targets on performance, cost, and durability in automotive and stationary applications.

  20. Hydrogen Production by Polymer Electrolyte Membrane (PEM)

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

    Electrolysis-Spotlight on Giner and Proton | Department of Energy by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Presentation slides and speaker biographies from the DOE Fuel Cell Technologies Office webinar "Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton" held on May 23, 2011. Water Electrolysis

  1. Manufacturing Barriers to High Temperature PEM Commercialization |

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

    Department of Energy Barriers to High Temperature PEM Commercialization Manufacturing Barriers to High Temperature PEM Commercialization Presented at the NREL Hydrogen and Fuel Cell Manufacturing R&D Workshop in Washington, DC, August 11-12, 2011. Manufacturing Barriers to High Temperature PEM Commercialization (785.02 KB) More Documents & Publications PBI-Phosphoric Acid Based Membrane Electrode Assemblies: Status Update MCFC and PAFC R&D Workshop Summary Report 2012 Pathways to

  2. PEM fuel cell monitoring system

    DOE Patents [OSTI]

    Meltser, Mark Alexander; Grot, Stephen Andreas

    1998-01-01

    Method and apparatus for monitoring the performance of H.sub.2 --O.sub.2 PEM fuel cells. Outputs from a cell/stack voltage monitor and a cathode exhaust gas H.sub.2 sensor are corrected for stack operating conditions, and then compared to predetermined levels of acceptability. If certain unacceptable conditions coexist, an operator is alerted and/or corrective measures are automatically undertaken.

  3. PEM fuel cell monitoring system

    DOE Patents [OSTI]

    Meltser, M.A.; Grot, S.A.

    1998-06-09

    Method and apparatus are disclosed for monitoring the performance of H{sub 2}--O{sub 2} PEM fuel cells. Outputs from a cell/stack voltage monitor and a cathode exhaust gas H{sub 2} sensor are corrected for stack operating conditions, and then compared to predetermined levels of acceptability. If certain unacceptable conditions coexist, an operator is alerted and/or corrective measures are automatically undertaken. 2 figs.

  4. Corrosion resistant PEM fuel cell

    DOE Patents [OSTI]

    Li, Y.; Meng, W.J.; Swathirajan, S.; Harris, S.J.; Doll, G.L.

    1997-04-29

    The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti) core, having a passivating, protective metal layer intermediate the core and the titanium nitride. The protective layer forms a barrier to further oxidation/corrosion when exposed to the fuel cell`s operating environment. Stainless steels rich in Cr, Ni, and Mo are particularly effective protective interlayers. 6 figs.

  5. Corrosion resistant PEM fuel cell

    DOE Patents [OSTI]

    Li, Yang; Meng, Wen-Jin; Swathirajan, Swathy; Harris, Stephen Joel; Doll, Gary Lynn

    2001-07-17

    The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti) core, having a passivating, protective metal layer intermediate the core and the titanium nitride. The protective layer forms a barrier to further oxidation/corrosion when exposed to the fuel cell's operating environment. Stainless steels rich in CR, Ni, and Mo are particularly effective protective interlayers.

  6. Corrosion resistant PEM fuel cell

    DOE Patents [OSTI]

    Li, Yang; Meng, Wen-Jin; Swathirajan, Swathy; Harris, Stephen J.; Doll, Gary L.

    1997-01-01

    The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti) core, having a passivating, protective metal layer intermediate the core and the titanium nitride. The protective layer forms a barrier to further oxidation/corrosion when exposed to the fuel cell's operating environment. Stainless steels rich in CR, Ni, and Mo are particularly effective protective interlayers.

  7. Corrosion resistant PEM fuel cell

    DOE Patents [OSTI]

    Li, Yang; Meng, Wen-Jin; Swathirajan, Swathy; Harris, Stephen Joel; Doll, Gary Lynn

    2002-01-01

    The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti) core, having a passivating, protective metal layer intermediate the core and the titanium nitride. The protective layer forms a barrier to further oxidation/corrosion when exposed to the fuel cell's operating environment. Stainless steels rich in CR, Ni, and Mo are particularly effective protective interlayers.

  8. Advanced Electrocatalysts for PEM Fuel Cells

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

    ... based on well-defined systems - Control of critical ... utilization as anode in PEM Fuel Cells - Mesostructured thin ... Renewable Energy, Fuel Cell Technologies Office ...

  9. Webinar: Advanced Electrocatalysts for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    Video recording of the Fuel Cell Technologies Office webinar, Advanced Electrocatalysts for PEM Fuel Cells, originally presented on February 12, 2013.

  10. Hydrogen Production by Polymer Electrolyte Membrane (PEM)Electrolysis...

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

    by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and ...

  11. Research and Development of a PEM Fuel Cell, Hydrogen Reformer...

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

    Research and Development of a PEM Fuel Cell, Hydrogen Reformer, and Vehicle Refueling Facility Research and Development of a PEM Fuel Cell, Hydrogen Reformer, and Vehicle Refueling ...

  12. Zongshen PEM Canada Chongqing Hydrogen Energy Ltd | Open Energy...

    Open Energy Info (EERE)

    Zongshen PEM Canada Chongqing Hydrogen Energy Ltd Jump to: navigation, search Name: Zongshen PEM (Canada) Chongqing Hydrogen Energy Ltd Place: Chongqing Municipality, China...

  13. Low Cost Manufacturable Microchannel Systems for Passive PEM...

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

    Low Cost Manufacturable Microchannel Systems for Passive PEM Water Management Part of a 100 million fuel cell ... Low-Cost Manufacturable Microchannel Systems for Passive PEM ...

  14. Mass Production Cost Estimation of Direct Hydrogen PEM Fuel Cell...

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

    of Direct Hydrogen PEM Fuel Cell Systems for Transportation Applications: 2012 Update Mass Production Cost Estimation of Direct Hydrogen PEM Fuel Cell Systems for Transportation ...

  15. Sensor Development for PEM Fuel Cell Systems

    SciTech Connect (OSTI)

    Steve Magee; Richard Gehman

    2005-07-12

    This document reports on the work done by Honeywell Sensing and Control to investigate the feasibility of modifying low cost Commercial Sensors for use inside a PEM Fuel Cell environment. Both stationary and automotive systems were considered. The target environment is hotter (100 C) than the typical commercial sensor maximum of 70 C. It is also far more humid (100% RH condensing) than the more typical 95% RH non-condensing at 40 C (4% RH maximum at 100 C). The work focused on four types of sensors, Temperature, Pressure, Air Flow and Relative Humidity. Initial design goals were established using a market research technique called Market Driven Product Definition (MDPD). A series of interviews were conducted with various users and system designers in their facilities. The interviewing team was trained in data taking and analysis per the MDPD process. The final result was a prioritized and weighted list of both requirements and desires for each sensor. Work proceeded on concept development for the 4 types of sensors. At the same time, users were developing the actual fuel cell systems and gaining knowledge and experience in the use of sensors and controls systems. This resulted in changes to requirements and desires that were not anticipated during the MDPD process. The concepts developed met all the predicted requirements. At the completion of concept development for the Pressure Sensor, it was determined that the Fuel Cell developers were happy with off-the-shelf automotive pressure sensors. Thus, there was no incentive to bring a new Fuel Cell Specific Pressure Sensor into production. Work was therefore suspended. After the experience with the Pressure Sensor, the requirements for a Temperature Sensor were reviewed and a similar situation applied. Commercially available temperature sensors were adequate and cost effective and so the program was not continued from the Concept into the Design Phase.

  16. PEM Degradation Investigation Final Technical Report

    SciTech Connect (OSTI)

    Dan Stevenson; Lee H Spangler

    2010-10-18

    This project conducted fundamental studies of PEM MEA degradation. Insights gained from these studies were disseminated to assist MEA manufacturers in understanding degradation mechanisms and work towards DOE 2010 fuel cell durability targets.

  17. Trends in stationary energy

    SciTech Connect (OSTI)

    2013-04-01

    Trends in Stationary Energy Lunch Presentation for the 2013 Building Technologies Office's Program Peer Review

  18. Bootstrapping a Sustainable North American PEM Fuel Cell Industry...

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

    The North American Proton Exchange Membrane (PEM) fuel cell industry may be at a critical ... kW Direct Hydrogen Polymer Electrolyte Membrane (PEM) Fuel Cell for Material Handling ...

  19. Development of a New Generation, High Efficiency PEM Fuel Cell...

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

    a New Generation, High Efficiency PEM Fuel Cell Based, CHP System Development of a New Generation, High Efficiency PEM Fuel Cell Based, CHP System Part of a 100 million fuel cell ...

  20. Advanced Cathode Catalysts and Supports for PEM Fuel Cells |...

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

    Catalysts and Supports for PEM Fuel Cells Advanced Cathode Catalysts and Supports for PEM Fuel Cells Part of a 100 million fuel cell award announced by DOE Secretary Bodman on ...

  1. Low Temperature PEM Fuel Cell Manufacturing Needs | Department of Energy

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

    PEM Fuel Cell Manufacturing Needs Low Temperature PEM Fuel Cell Manufacturing Needs Presented at the NREL Hydrogen and Fuel Cell Manufacturing R&D Workshop in Washington, DC, August 11-12, 2011. Low Temperature PEM Fuel Cell Manufacturing Needs (789.69 KB) More Documents & Publications Manufacturing Fuel Cell Manhattan Project PEM Stack Manufacturing: Industry Status 2011 NREL/DOE Hydrogen and Fuel Cell Manufacturing R&D Workshop Report

  2. 2007 Status of Manufacturing: Polymer Electrolyte Membrane (PEM) Fuel Cells

    SciTech Connect (OSTI)

    Wheeler, D.; Sverdrup, G.

    2008-03-01

    In this document we assess the North American industry's current ability to manufacture polymer electrolyte membrane (PEM) fuel cells.

  3. Automotive Perspective on PEM Evaluation | Department of Energy

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

    PEM Evaluation Automotive Perspective on PEM Evaluation Presented at the 2009 High Temperature Membrane Working Group Meeting held May 18, 2009, in Arlington, Virginia htmwg_may09_automotive_perspective.pdf (2.8 MB) More Documents & Publications Membrane Performance and Durability Overview for Automotive Fuel Cell Applications New Membranes for PEM Fuel Cells Membrane and MEA Accelerated Stress Test Protocols

  4. Final Scientific Report, New Proton Conductive Composite Materials for PEM Fuel Cells

    SciTech Connect (OSTI)

    Lvov, Serguei

    2010-11-08

    This project covered one of the main challenges in present-day PEM fuel cell technology: to design a membrane capable of maintaining high conductivity and mechanical integrity when temperature is elevated and water vapor pressure is severely reduced. The DOE conductivity milestone of 0.1 S cm-1 at 120 degrees C and 50 % relative humidity (RH) for designed membranes addressed the target for the project. Our approach presumed to develop a composite membrane with hydrophilic proton-conductive inorganic material and the proton conductive polymeric matrix that is able to “bridge” the conduction paths in the membrane. The unique aspect of our approach was the use of highly functionalized inorganic additives to benefit from their water retention properties and high conductivity as well. A promising result turns out that highly hydrophilic phosphorsilicate gels added in Nafion matrix improved PEM fuel cell performance by over 50% compared with bare Nafion membrane at 120 degrees C and 50 % RH. This achievement realizes that the fuel cell operating pressure can be kept low, which would make the PEM fuel cell much more cost efficient and adaptable to practical operating conditions and facilitate its faster commercialization particularly in automotive and stationary applications.

  5. Brazed bipolar plates for PEM fuel cells

    DOE Patents [OSTI]

    Neutzler, Jay Kevin

    1998-01-01

    A liquid-cooled, bipolar plate separating adjacent cells of a PEM fuel cell comprising corrosion-resistant metal sheets brazed together so as to provide a passage between the sheets through which a dielectric coolant flows. The brazement comprises a metal which is substantially insoluble in the coolant.

  6. Brazed bipolar plates for PEM fuel cells

    DOE Patents [OSTI]

    Neutzler, J.K.

    1998-07-07

    A liquid-cooled, bipolar plate separating adjacent cells of a PEM fuel cell comprises corrosion-resistant metal sheets brazed together so as to provide a passage between the sheets through which a dielectric coolant flows. The brazement comprises a metal which is substantially insoluble in the coolant. 6 figs.

  7. 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

  8. Webinar: Hydrogen Production by Polymer Electrolyte Membrane (PEM)

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

    Electrolysis-Spotlight on Giner and Proton | Department of Energy Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Webinar: Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Above is the video recording for the webinar, "Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton," originally held on May 23, 2011. In addition to this recording, you

  9. New Membranes for PEM Fuel Cells | Department of Energy

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

    PEM Fuel Cells New Membranes for PEM Fuel Cells Presentation on New Membranes for PEM Fuel Cells to the High Temperature Membrane Working Group Meeting held in Arlington, Virginia, May 26,2005. htmwg05_hamrock.pdf (394.94 KB) More Documents & Publications Some durability considerations for proton exchange membranes Processing-Performance Relationships for Perfluorosulfonate Ionomer Membrane Membrane Performance and Durability Overview for Automotive Fuel Cell Applications

  10. Low Cost Manufacturable Microchannel Systems for Passive PEM Water

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

    Management | Department of Energy Low Cost Manufacturable Microchannel Systems for Passive PEM Water Management Low Cost Manufacturable Microchannel Systems for Passive PEM Water Management Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 5_pnnl.pdf (20.48 KB) More Documents & Publications Low-Cost Manufacturable Microchannel Systems for Passive PEM Water Management Fuel Cells For Transportation - 2001 Annual Progress Report Fuel Cells For

  11. Membrane Durability in PEM Fuel Cells: Chemical Degradation | Department of

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

    Energy Durability in PEM Fuel Cells: Chemical Degradation Membrane Durability in PEM Fuel Cells: Chemical Degradation Presentation at the 2008 High Temperature Membrane Working Group Meeting held June 9, 2008, in Washington, DC motupally_htmwg_2008.pdf (962.33 KB) More Documents & Publications Highly Dispersed Alloy Cathode Catalyst for Durability Fundamental Study of the Mechanical Strength Degradation Mechanisms of PFSA Membranes and MEAs New Membranes for PEM Fuel Cells

  12. Procedure for Performing PEM Single Cell Testing | Department of Energy

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

    PEM Single Cell Testing Procedure for Performing PEM Single Cell Testing Presented at the 2009 High Temperature Membrane Working Group Meeting held May 18, 2009, in Arlington, Virginia htmwg_may09_pem_single_cell_testing.pdf (1.45 MB) More Documents & Publications FSEC's MEA Test Protocol MEA Fabrication Lead Research and Development Activity for High Temperature, Low Relative Humidity Membrane Program

  13. Low Temperature PEM Fuel Cell Manufacturing Needs

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

    Temperature PEM Fuel Cell Manufacturing Needs Presented by Duarte Sousa, PE Manufacturing Fuel Cell Manhattan Project  Cost drivers were identified for the following: * MEA * Plates * Balance of Plant (BOP) * Fuel Processing Manufacturing Fuel Cell Project - Phase 1 Note that this presentation will be MEA centric as this is the working group I represent...  MEA Cost Drivers Identified: Identifying MEA Cost Drivers * The MEA was readily identified as the major cost driver in a 10 kW

  14. High Temperature PEM - Energy Innovation Portal

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

    Vehicles and Fuels Vehicles and Fuels Hydrogen and Fuel Cell Hydrogen and Fuel Cell Find More Like This Return to Search High Temperature PEM Sandia National Laboratories Contact SNL About This Technology Publications: PDF Document Publication Market Sheet (976 KB) Technology Marketing SummaryPolymer electrolyte fuel cells (PEFCs) have been identified as an attractive electrical power source due to it having a higher efficiency level and being an environmental friendly energy source. In

  15. PEM Electrolysis R&D Webinar

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

    R&D Webinar May 23, 2011 Presented by Dr. Katherine Ayers Outline * Key Messages About Electrolysis * Company Intro and Market Discussion - Electrolysis Technology Comparison * Infrastructure Challenges and Solutions - System Approaches: Capacity and Delivery Pressure - Materials Advancements: Cost and Efficiency Improvements * Summary and Future Vision 2 Key Takeaways for Today * Hydrogen markets exist today that can leverage advancements in on-site generation technologies * PEM

  16. Demonstration of Next Generation PEM CHP Systems for Global Markets...

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

    Systems for Global Markets Using PBI Membrane Technology Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI Membrane Technology Part of a 100 million ...

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

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

    Technology, Key Research Needs and Approaches (Presentation) PEM Fuel Cell Technology, Key Research Needs and Approaches (Presentation) Presented at the DOE Fuel Cell ...

  18. 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 ...

  19. Light Weight, Low Cost PEM Fuel Cell Stacks

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

    Light-weight, Low Cost PEM Fuel Cell Stacks Case Western Reserve University Endura Plastics Inc. This presentation does not contain any proprietary or confidential information. ...

  20. Micro-Structural Mitigation Strategies for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    Download presentation slides from the DOE Fuel Cell Technologies Office webinar Micro-Structural Mitigation Strategies for PEM Fuel Cells held on November 19, 2013.

  1. Webinar: Micro-Structural Mitigation Strategies for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    Video recording of the Fuel Cell Technologies Office webinar, Micro-Structural Mitigation Strategies for PEM Fuel Cells, originally presented on November 19, 2013.

  2. Low-Cost Manufacturable Microchannel Systems for Passive PEM...

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

    Low Cost Manufacturable Microchannel Systems for Passive PEM Water Management Fuel Cells For Transportation - 2001 Annual Progress Report Fuel Cell Systems Annual Progress Report

  3. Bootstrapping a Sustainable North American PEM Fuel Cell Industry...

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

    a Sustainable North American PEM Fuel Cell Industry: Could a Federal Acquisition ... for Fully Installed Fuel Cell Systems ......19 8 Logit ...

  4. Development of Micro-structural Mitigation Strategies for PEM...

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

    for PEM Fuel Cells: Morphological Simulation and Experimental Approaches DOE Fuel Cell Projects Kick-off Meeting COPYRIGHT 2009 BALLARD POWER SYSTEMS, INC. ALL RIGHTS ...

  5. Techno-economic Analysis of PEM Electrolysis for Hydrogen Production

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

    PEM Electrolysis for Hydrogen Production Strategic ... delivery of H 2 fuel for fuel cell vehicles (FCVs). * Identify ... Case * New materials and systems with increased H 2 ...

  6. PEM Degradation Investigation Final Technical Report

    SciTech Connect (OSTI)

    Dan Stevenson; Lee H Spangler

    2007-11-02

    The objectives of this paper are: (1) Develop a system capable of measuring current and voltage performance for each membrane in a Polymer Electrolyte Membranes (PEM) fuel cell stack and record the performance of each individual cell; (2) Develop a single cell PEM FC to allow in situ synchrotron x-ray measurements of the cell in operation and to perform spatially resolved x-ray measurements on fuel cell elements before and after degradation; and (3) Perform initial magnetic resonance microimaging experiments on membrane materials. The Montana State University PEM Membrane Degradation program is geared towards determining how and why membranes in fuel cells degrade and fail. By monitoring every individual membrane in a fuel cell 2000 times/sec while the cell is subjected to real-world type use, we hope to: (1) cause the types of degradation users see, but in a controlled environment; (2) determine an electrical signature that will identify what causes failure, or at least warns of impending failure; (3) allows us to perform advanced x-ray and MRI characterization of the degraded membranes to provide information that may result in improvements of the membrane material; and (4) perhaps allow design of electronic control systems that will prevent fuel cells from operating under conditions where damage is likely to occur.

  7. Mass Production Cost Estimation of Direct H2 PEM Fuel Cell Systems...

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

    of Direct H2 PEM Fuel Cell Systems for Transportation Applications: 2013 Update Mass Production Cost Estimation of Direct H2 PEM Fuel Cell Systems for Transportation Applications: ...

  8. PEM Electrolysis H2A Production Case Study Documentation

    SciTech Connect (OSTI)

    James, Brian; Colella, Whitney; Moton, Jennie; Saur, G.; Ramsden, T.

    2013-12-31

    This report documents the development of four DOE Hydrogen Analysis (H2A) case studies for polymer electrolyte membrane (PEM) electrolysis. The four cases characterize PEM electrolyzer technology for two hydrogen production plant sizes (Forecourt and Central) and for two technology development time horizons (Current and Future).

  9. Stationary nonlinear Airy beams

    SciTech Connect (OSTI)

    Lotti, A.; Faccio, D.; Couairon, A.; Papazoglou, D. G.; Panagiotopoulos, P.; Tzortzakis, S.; Abdollahpour, D.

    2011-08-15

    We demonstrate the existence of an additional class of stationary accelerating Airy wave forms that exist in the presence of third-order (Kerr) nonlinearity and nonlinear losses. Numerical simulations and experiments, in agreement with the analytical model, highlight how these stationary solutions sustain the nonlinear evolution of Airy beams. The generic nature of the Airy solution allows extension of these results to other settings, and a variety of applications are suggested.

  10. Pattern recognition monitoring of PEM fuel cell

    DOE Patents [OSTI]

    Meltser, Mark Alexander

    1999-01-01

    The CO-concentration in the H.sub.2 feed stream to a PEM fuel cell stack is monitored by measuring current and voltage behavior patterns from an auxiliary cell attached to the end of the stack. The auxiliary cell is connected to the same oxygen and hydrogen feed manifolds that supply the stack, and discharges through a constant load. Pattern recognition software compares the current and voltage patterns from the auxiliary cell to current and voltage signature determined from a reference cell similar to the auxiliary cell and operated under controlled conditions over a wide range of CO-concentrations in the H.sub.2 fuel stream.

  11. Pattern recognition monitoring of PEM fuel cell

    DOE Patents [OSTI]

    Meltser, M.A.

    1999-08-31

    The CO-concentration in the H{sub 2} feed stream to a PEM fuel cell stack is monitored by measuring current and voltage behavior patterns from an auxiliary cell attached to the end of the stack. The auxiliary cell is connected to the same oxygen and hydrogen feed manifolds that supply the stack, and discharges through a constant load. Pattern recognition software compares the current and voltage patterns from the auxiliary cell to current and voltage signature determined from a reference cell similar to the auxiliary cell and operated under controlled conditions over a wide range of CO-concentrations in the H{sub 2} fuel stream. 4 figs.

  12. Research and Development of a PEM Fuel Cell, Hydrogen Reformer, and Vehicle Refueling Facility

    SciTech Connect (OSTI)

    Edward F. Kiczek

    2007-08-31

    Air Products and Chemicals, Inc. has teamed with Plug Power, Inc. of Latham, NY, and the City of Las Vegas, NV, to develop, design, procure, install and operate an on-site hydrogen generation system, an alternative vehicle refueling system, and a stationary hydrogen fuel cell power plant, located in Las Vegas. The facility will become the benchmark for validating new natural gas-based hydrogen systems, PEM fuel cell power generation systems, and numerous new technologies for the safe and reliable delivery of hydrogen as a fuel to vehicles. Most important, this facility will serve as a demonstration of hydrogen as a safe and clean energy alternative. Las Vegas provides an excellent real-world performance and durability testing environment.

  13. Hydrogen Production by PEM Electrolysis: Spotlight on Giner and Proton

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

    PRODUCTION BY PEM ELECTROLYSIS: SPOTLIGHT ON GINER AND PROTON US DOE WEBINAR (May 23, 2011) 2 Webinar Outline *Water Electrolysis H 2 Production Overview DOE-EERE-FCT: Eric L. Miller *Spotlight: PEM Electrolysis R&D at Giner Giner Electrochemical Systems: Monjid Hamdan *Spotlight: PEM Electrolysis R&D at Proton Proton OnSite: Kathy Ayers *Q&A 3 DOE EERE-FCT Goals and Objectives Develop technologies to produce hydrogen from clean, domestic resources at a delivered and dispensed cost

  14. Polyphenylene Sulfonic Acid: a new PEM | Department of Energy

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

    Polyphenylene Sulfonic Acid: a new PEM Polyphenylene Sulfonic Acid: a new PEM "Summary of Case Westernミs highly sulfonated polymers research presented to the High Temperature Membrane Working Group Meeting, Orlando FL, October 17, 2003 " hi_tem_pems_talk.pdf (646.89 KB) More Documents & Publications 2006 DOE Hydrogen Program Poly (p-phenylene Sulfonic Acid)s with Frozen-in Free Volume for use in High Temperature Fuel Cells High Temperature Polymer Membrane Development at Argonne

  15. Development of a 10 kW PEM fuel cell for stationary applications

    SciTech Connect (OSTI)

    Barthels, H.; Mergel, J.; Oetjen, H.F.

    1996-12-31

    A 10 kW Proton Exchange Membrane Fuel Cell (PEMFC) is being developed as part of a long-term energy storage path for electricity in the photovoltaic demonstration plant called PHOEBUS at the Forschungszentrum Julich.

  16. PEM Stack Manufacturing: Industry Status | Department of Energy

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

    NREL Hydrogen and Fuel Cell Manufacturing R&D Workshop in Washington, DC, August 11-12, ... Fuel Cell Manufacturing Needs A Total Cost of Ownership Model for Low Temperature PEM ...

  17. 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 ...

  18. Advanced Cathode Catalysts and Supports for PEM Fuel Cells

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

    Cathode Catalysts and Supports for PEM Fuel Cells DE-FG36-07GO17007 Mark K. Debe 3M Company ... for optimized ECSA d) extensive fuel cell performance and durability testing e) ...

  19. Advanced Cathode Catalysts and Supports for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    This presentation, which focuses on advanced cathode catalysts and supports for PEM fuel cells, was given by Mark Debe of 3M at a February 2007 meeting on new fuel cell projects.

  20. Low Cost PEM Fuel Cell Metal Bipolar Plates

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

    Cost PEM Fuel Cell Metal Bipolar Plates CH Wang TreadStone Technologies, Inc. Fuel Cell ... has been evaluated by various clients and used in portable fuel cell power systems. ...

  1. Manufacturing R&D of PEM Fuel Cells

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

    PEM Fuel Cell Systems for Transportation Applications Background Material for the Manufacturing R&D Workshop to be held July 13-14, 2005 Washington, DC July 7, 2005 Introduction In ...

  2. Low-Cost Manufacturable Microchannel Systems for Passive PEM...

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

    system and passive PEM water management system Specific Targets Addressed for 3.4.2 Automotive-Scale: 80 kWe Integrated Transportation Fuel Cell Power Systems Operating on ...

  3. Stationary Applications and Freeze/Thaw Challenges

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

    Observations Research Directions Freeze Workshop - 2005 LEADING DEVELOPER OF PEM FUEL CELL SYSTEMS Focused on commercialization and profitability Targeting large, near-term ...

  4. High Pressure PEM Electrolysis: Status, Key Issues, and Challenges

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

    High Pressure PEM Electrolysis Status, Key Issues, and Challenges Electrolytic Hydrogen Production Workshop NREL, Golden, Colorado Monjid Hamdan Director of Engineering Giner, Inc. 89 Rumford Ave, Newton, Ma. 02466 February 27-28 th , 2014 Advantages of High Pressure PEM Electrolysis  Eliminates one or more stages of mechanical compression  Reduces system complexity  Lower drying requirements  Low maintenance  No moving parts  No contaminants  Permits hydrogen generation at

  5. Progress and Challenges for PEM Transit Fleet Applications | Department of

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

    Energy and Challenges for PEM Transit Fleet Applications Progress and Challenges for PEM Transit Fleet Applications Presentation at DOE and DOT Joint Fuel Cell Bus Workshop, June 7, 2010 buswksp10_madden.pdf (550.68 KB) More Documents & Publications Joint Fuel Cell Bus Workshop Summary Report SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). SunLine Begins Extended Testing

  6. Next Generation Bipolar Plates for Automotive PEM Fuel Cells | Department

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

    of Energy Next Generation Bipolar Plates for Automotive PEM Fuel Cells Next Generation Bipolar Plates for Automotive PEM Fuel Cells Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 4_graftech.pdf (23.01 KB) More Documents & Publications WA_07_040_GRAFTECH_INTERNATIONAL_LTD_Waiver_of_Patent_Rights.pdf Advance Patent Waiver W(A)2008-004 Metallic Bipolar Plates with Composite Coatings

  7. Advanced Materials for PEM-Based Fuel Cell Systems

    SciTech Connect (OSTI)

    James E. McGrath

    2005-10-26

    Proton exchange membrane fuel cells (PEMFCs) are quickly becoming attractive alternative energy sources for transportation, stationary power, and small electronics due to the increasing cost and environmental hazards of traditional fossil fuels. Two main classes of PEMFCs include hydrogen/air or hydrogen/oxygen fuel cells and direct methanol fuel cells (DMFCs). The current benchmark membrane for both types of PEMFCs is Nafion, a perfluorinated sulfonated copolymer made by DuPont. Nafion copolymers exhibit good thermal and chemical stability, as well as very high proton conductivity under hydrated conditions at temperatures below 80 °C. However, application of these membranes is limited due to their high methanol permeability and loss of conductivity at high temperatures and low relative humidities. These deficiencies have led to the search for improved materials for proton exchange membranes. Potential PEMs should have good thermal, hydrolytic, and oxidative stability, high proton conductivity, selective permeability, and mechanical durability over long periods of time. Poly(arylene ether)s, polyimides, polybenzimidazoles, and polyphenylenes are among the most widely investigated candidates for PEMs. Poly(arylene ether)s are a promising class of proton exchange membranes due to their excellent thermal and chemical stability and high glass transition temperatures. High proton conductivity can be achieved through post-sulfonation of poly(arylene ether) materials, but this most often results in very high water sorption or even water solubility. Our research has shown that directly polymerized poly(arylene ether) copolymers show important advantages over traditional post-sulfonated systems and also address the concerns with Nafion membranes. These properties were evaluated and correlated with morphology, structure-property relationships, and

  8. Advanced Materials for PEM-Based Fuel Cell Systems

    SciTech Connect (OSTI)

    James E. McGrath; Donald G. Baird; Michael von Spakovsky

    2005-10-26

    Proton exchange membrane fuel cells (PEMFCs) are quickly becoming attractive alternative energy sources for transportation, stationary power, and small electronics due to the increasing cost and environmental hazards of traditional fossil fuels. Two main classes of PEMFCs include hydrogen/air or hydrogen/oxygen fuel cells and direct methanol fuel cells (DMFCs). The current benchmark membrane for both types of PEMFCs is Nafion, a perfluorinated sulfonated copolymer made by DuPont. Nafion copolymers exhibit good thermal and chemical stability, as well as very high proton conductivity under hydrated conditions at temperatures below 80 degrees C. However, application of these membranes is limited due to their high methanol permeability and loss of conductivity at high temperatures and low relative humidities. These deficiencies have led to the search for improved materials for proton exchange membranes. Potential PEMs should have good thermal, hydrolytic, and oxidative stability, high proton conductivity, selective permeability, and mechanical durability over long periods of time. Poly(arylene ether)s, polyimides, polybenzimidazoles, and polyphenylenes are among the most widely investigated candidates for PEMs. Poly(arylene ether)s are a promising class of proton exchange membranes due to their excellent thermal and chemical stability and high glass transition temperatures. High proton conductivity can be achieved through post-sulfonation of poly(arylene ether) materials, but this most often results in very high water sorption or even water solubility. Our research has shown that directly polymerized poly(arylene ether) copolymers show important advantages over traditional post-sulfonated systems and also address the concerns with Nafion membranes. These properties were evaluated and correlated with morphology, structure-property relationships, and states of water in the membranes. Further improvements in properties were achieved through incorporation of inorganic

  9. Cerium migration during PEM fuel cell accelerated stress testing

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

    Baker, Andrew M.; Mukundan, Rangachary; Borup, Rodney L.; Spernjak, Dusan; Judge, Elizabeth J.; Advani, Suresh G.; Prasad, Ajay K.

    2016-01-01

    Cerium is a radical scavenger which improves polymer electrolyte membrane (PEM) fuel cell durability. During operation, however, cerium rapidly migrates in the PEM and into the catalyst layers (CLs). In this work, membrane electrode assemblies (MEAs) were subjected to accelerated stress tests (ASTs) under different humidity conditions. Cerium migration was characterized in the MEAs after ASTs using X-ray fluorescence. During fully humidified operation, water flux from cell inlet to outlet generated in-plane cerium gradients. Conversely, cerium profiles were flat during low humidity operation, where in-plane water flux was negligible, however, migration from the PEM into the CLs was enhanced. Humiditymore » cycling resulted in both in-plane cerium gradients due to water flux during the hydration component of the cycle, and significant migration into the CLs. Fluoride and cerium emissions into effluent cell waters were measured during ASTs and correlated, which signifies that ionomer degradation products serve as possible counter-ions for cerium emissions. Fluoride emission rates were also correlated to final PEM cerium contents, which indicates that PEM degradation and cerium migration are coupled. Lastly, it is proposed that cerium migrates from the PEM due to humidification conditions and degradation, and is subsequently stabilized in the CLs by carbon catalyst supports.« less

  10. Cerium migration during PEM fuel cell accelerated stress testing

    SciTech Connect (OSTI)

    Baker, Andrew M.; Mukundan, Rangachary; Borup, Rodney L.; Spernjak, Dusan; Judge, Elizabeth J.; Advani, Suresh G.; Prasad, Ajay K.

    2016-01-01

    Cerium is a radical scavenger which improves polymer electrolyte membrane (PEM) fuel cell durability. During operation, however, cerium rapidly migrates in the PEM and into the catalyst layers (CLs). In this work, membrane electrode assemblies (MEAs) were subjected to accelerated stress tests (ASTs) under different humidity conditions. Cerium migration was characterized in the MEAs after ASTs using X-ray fluorescence. During fully humidified operation, water flux from cell inlet to outlet generated in-plane cerium gradients. Conversely, cerium profiles were flat during low humidity operation, where in-plane water flux was negligible, however, migration from the PEM into the CLs was enhanced. Humidity cycling resulted in both in-plane cerium gradients due to water flux during the hydration component of the cycle, and significant migration into the CLs. Fluoride and cerium emissions into effluent cell waters were measured during ASTs and correlated, which signifies that ionomer degradation products serve as possible counter-ions for cerium emissions. Fluoride emission rates were also correlated to final PEM cerium contents, which indicates that PEM degradation and cerium migration are coupled. Lastly, it is proposed that cerium migrates from the PEM due to humidification conditions and degradation, and is subsequently stabilized in the CLs by carbon catalyst supports.

  11. Light Weight, Low Cost PEM Fuel Cell Stacks | Department of Energy

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

    Light Weight, Low Cost PEM Fuel Cell Stacks Light Weight, Low Cost PEM Fuel Cell Stacks Part of a 100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. ...

  12. Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell

    SciTech Connect (OSTI)

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

    2000-01-01

    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. The PEM-probe is intermittently purged of any CO build-up on the anode catalyst (e.g., by (1) flushing the anode with air, (2) short circuiting the PEM-probe, or (3) reverse biasing the PEM-probe) to keep the PEM-probe at peak performance levels.

  13. Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project...

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

    Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility ...

  14. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems...

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

    reports on the status of mass production cost estimation for direct hydrogen PEM fuel cell systems. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for ...

  15. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Application

    Broader source: Energy.gov [DOE]

    This presentation reports on the status of mass production cost estimation for direct hydrogen PEM fuel cell systems.

  16. Recent Progress in Nanostructured Electrocatalysts for PEM Fuel Cells

    SciTech Connect (OSTI)

    Zhang, Sheng; Shao, Yuyan; Yin, Geping; Lin, Yuehe

    2013-03-30

    Polymer electrolyte membrane (PEM) fuel cells are attracting much attention as promising clean power sources and an alternative to conventional internal combustion engines, secondary batteries, and other power sources. Much effort from government laboratories, industry, and academia has been devoted to developing PEM fuel cells, and great advances have been achieved. Although prototype cars powered by fuel cells have been delivered, successful commercialization requires fuel cell electrocatalysts, which are crucial components at the heart of fuel cells, meet exacting performance targets. In this review, we present a brief overview of the recent progress in fuel cell electrocatalysts, which involves catalyst supports, Pt and Pt-based electrocatalysts, and non-Pt electrocatalysts.

  17. Development of Novel PEM Membrane and Multiphase CD Modeling of PEM Fuel Cell

    SciTech Connect (OSTI)

    K. J. Berry; Susanta Das

    2009-12-30

    To understand heat and water management phenomena better within an operational proton exchange membrane fuel cell's (PEMFC) conditions, a three-dimensional, two-phase computational fluid dynamic (CFD) flow model has been developed and simulated for a complete PEMFC. Both liquid and gas phases are considered in the model by taking into account the gas flow, diffusion, charge transfer, change of phase, electro-osmosis, and electrochemical reactions to understand the overall dynamic behaviors of species within an operating PEMFC. The CFD model is solved numerically under different parametric conditions in terms of water management issues in order to improve cell performance. The results obtained from the CFD two-phase flow model simulations show improvement in cell performance as well as water management under PEMFCs operational conditions as compared to the results of a single phase flow model available in the literature. The quantitative information obtained from the two-phase model simulation results helped to develop a CFD control algorithm for low temperature PEM fuel cell stacks which opens up a route in designing improvement of PEMFC for better operational efficiency and performance. To understand heat and water management phenomena better within an operational proton exchange membrane fuel cell's (PEMFC) conditions, a three-dimensional, two-phase computational fluid dynamic (CFD) flow model has been developed and simulated for a complete PEMFC. Both liquid and gas phases are considered in the model by taking into account the gas flow, diffusion, charge transfer, change of phase, electro-osmosis, and electrochemical reactions to understand the overall dynamic behaviors of species within an operating PEMFC. The CFD model is solved numerically under different parametric conditions in terms of water management issues in order to improve cell performance. The results obtained from the CFD two-phase flow model simulations show improvement in cell performance as well

  18. Transportation and Stationary Power Integration Workshop Attendees...

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

    Transportation and Stationary Power Integration Workshop Attendees List List of attendees for the Transportation and Stationary Power Integration Workshop PDF icon ...

  19. Stationary Fuel Cell Evaluation (Presentation)

    SciTech Connect (OSTI)

    Kurtz, J.; Wipke, K.; Sprik, S.; Ramsden, T.; Ainscough, C.

    2012-05-01

    This powerpoint presentation discusses its objectives: real world operation data from the field and state-of-the-art lab; collection; analysis for independent technology validation; collaboration with industry and end users operating stationary fuel cell systems and reporting on technology status, progress and technical challenges. The approach and accomplishments are: A quarterly data analysis and publication of first technical stationary fuel cell composite data products (data through June 2012).

  20. The use of experimental design to find the operating maximum power point of PEM fuel cells

    SciTech Connect (OSTI)

    Crăciunescu, Aurelian; Pătularu, Laurenţiu; Ciumbulea, Gloria; Olteanu, Valentin; Pitorac, Cristina; Drugan, Elena

    2015-03-10

    Proton Exchange Membrane (PEM) Fuel Cells are difficult to model due to their complex nonlinear nature. In this paper, the development of a PEM Fuel Cells mathematical model based on the Design of Experiment methodology is described. The Design of Experiment provides a very efficient methodology to obtain a mathematical model for the studied multivariable system with only a few experiments. The obtained results can be used for optimization and control of the PEM Fuel Cells systems.

  1. 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.

  2. Progress and Challenges for PEM Transit Fleet Applications

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

    Challenges for PEM Transit Fleet Applications Tom Madden UTC Power 2010 DOE AMR Joint DOE / DOT Bus Workshop June 7 th , 2010 This presentation does not contain any proprietary information. * Brief company history in area of fuel cell buses * Current fuel cell bus deployments * Performance and life status, including reasons for forced outages * Technology gaps/barriers to full commercialization of fuel cell buses * Fuel cell bus R&D needs * Future plans Agenda 2 UTC Fleet history * 14+ yr

  3. Effects of Fuel and Air Impurities on PEM Fuel Cell Performance

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

    Hydrogen,Fuel Cells and Infrastructure Technologies 2007 Kickoff Meeting Effects of Fuel and Air Impurities on PEM Fuel Cell Performance Rod Borup Eric Brosha Fernando Garzon (PI) ...

  4. Mass Production Cost Estimation of Direct H2 PEM Fuel Cell Systems...

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

    Mass Production Cost Estimation of Direct H 2 PEM Fuel Cell Systems for Transportation ... Jason Marcinkoski of DOE's Office of Energy Efficiency and Renewable Energy (EERE) Fuel ...

  5. A Total Cost of Ownership Model for Low Temperature PEM Fuel...

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

    LBNL-6772E A Total Cost of Ownership Model for Low Temperature PEM Fuel Cells in Combined ... Efficiency and Renewable Energy (EERE) Fuel Cells Technologies Office (FCTO) under ...

  6. Low Cost PEM Fuel Cell Metal Bipolar Plates | Department of Energy

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

    More Documents & Publications Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Applications: 2008 Update Mass Production Cost Estimation for ...

  7. Development of Alternative and Durable High Performance Cathode Supports for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    This presentation, which focuses on cathode supports for PEM fuel cells, was given by Yong Wang of PNNL at a February 2007 meeting on new fuel cell projects.

  8. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems...

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

    ... * Smaller compressor * No expander PEM Fuel Cell Stack * Abridged to 2 cells (from 186) ... Last Year Current Technology 500 000 SystemsYear Current Technology, 500,000 ...

  9. 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.

  10. Effects of Fuel and Air Impurities on PEM Fuel Cell Performance

    Broader source: Energy.gov [DOE]

    This presentation, which focuses on PEM fuel cell performance, was given by Fernando Garzon of LANL at a February 2007 meeting on new fuel cell projects.

  11. Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility

    Office of Energy Efficiency and Renewable Energy (EERE)

    This Sandia National Laboratories study examines the feasibility of a hydrogen-fueled PEM fuel cell barge to provide electrical power to vessels at anchorage or at berth.

  12. Low-Cost Manufacturable Microchannel Systems for Passive PEM Water Management

    Broader source: Energy.gov [DOE]

    This presentation, which focuses on passive PEM water management, was given by Susie Stenkamp of PNNL at a February 2007 meeting on new fuel cell projects.

  13. Upcoming Webinar November 19: Micro-Structural Mitigation Strategies for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    On November 19, the Energy Department will present a webinar on micro-structural mitigation strategies for PEM fuel cells focusing on morphological simulations and experimental approaches.

  14. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems...

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

    Applications: 2007 Update Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Applications: 2007 Update This report estimates fuel cell system cost ...

  15. PEM fuel cell applications and their development at International Fuel Cells

    SciTech Connect (OSTI)

    Fuller, T.F.; Gorman, M.E.; Van Dine, L.L.

    1996-12-31

    International Fuel Cells (IFC) is involved with the full spectrum of fuel cell power plants including the development of Proton Exchange Membrane (PEM) fuel cell systems. The extensive background in systems, design, materials and manufacturing technologies has been brought to bear on the development of highly competitive PEM power plants. IFC is aggressively pursuing these opportunities and is developing low-cost designs for a wide variety of PEM fuel cell applications with special emphasis on portable power and transportation. Experimental PEM power plants for each of these applications have been successfully tested.

  16. 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

  17. Manufacturing R&D of PEM Fuel Cells | Department of Energy

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

    PEM Fuel Cells Manufacturing R&D of PEM Fuel Cells Background paper prepared for the 2005 Hydrogen Manufacturing R&D workshop. mfg_wkshp_fuelcell.pdf (414.43 KB) More Documents & Publications Manufacturing R&D for the Hydrogen Economy Workshop Summary Manufacturing R&D for systems that will produce and distribute hydrogen

  18. Toward developing a computational capability for PEM fuel cell design and optimization.

    SciTech Connect (OSTI)

    Wang, Chao Yang; Luo, Gang; Jiang, Fangming; Carnes, Brian; Chen, Ken Shuang

    2010-05-01

    In this paper, we report the progress made in our project recently funded by the US Department of Energy (DOE) toward developing a computational capability, which includes a two-phase, three-dimensional PEM (polymer electrolyte membrane) fuel cell model and its coupling with DAKOTA (a design and optimization toolkit developed and being enhanced by Sandia National Laboratories). We first present a brief literature survey in which the prominent/notable PEM fuel cell models developed by various researchers or groups are reviewed. Next, we describe the two-phase, three-dimensional PEM fuel cell model being developed, tested, and later validated by experimental data. Results from case studies are presented to illustrate the utility of our comprehensive, integrated cell model. The coupling between the PEM fuel cell model and DAKOTA is briefly discussed. Our efforts in this DOE-funded project are focused on developing a validated computational capability that can be employed for PEM fuel cell design and optimization.

  19. PEM fuel cell stack development for automotive applications

    SciTech Connect (OSTI)

    Ernst, W.D.

    1996-12-31

    Presently, the major challenges to the introduction of fuel cell power systems for automotive applications are to maximize the effective system power density and minimize cost. The material cost, especially for Platinum, had been a significant factor until recent advances by Los Alamos National Laboratory and others in low Platinum loading electrode design has brought these costs within control. Since the initiation of its PEM stack development efforts, MTI has focused on applying its system and mechanical engineering heritage on both increasing power density and reducing cost. In May of 1995, MTI was selected (along with four other companies) as a subcontractor by the Ford Motor Company to participate in Phase I of the DOE Office of Transportation Technology sponsored PNGV Program entitled: {open_quotes}Direct-Hydrogen-Fueled Proton-Exchange-Membrane (PEM) Fuel Cell System for Transportation Applications{close_quotes}. This Program was instituted to: (1) Advance the performance and economic viability of a direct-hydrogen-fueled PEM fuel cell system, (2) Identify the critical problems that must be resolved before system scale-up and vehicle integration, and (3) Integrate the fuel cell power system into a sub-scale vehicle propulsion system. The Phase I objective was to develop and demonstrate a nominal 10 kW stack meeting specific criteria. Figure I is a photograph of the stack used for these demonstrations. After completion of Phase I, MTI was one of only two companies selected to continue into Phase II of the Program. This paper summarizes Phase I stack development and results.

  20. Engineered Nano-scale Ceramic Supports for PEM Fuel Cells

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

    Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Engineered Nano-scale Ceramic Supports for PEM Fuel Cells Eric L. Brosha, Anthony Burrell, Neil Henson, Jonathan Phillips, and Tommy Rockward Los Alamos National Laboratory Timothy Ward, Plamen Atanassov University of New Mexico Karren More Oak Ridge National Laboratory Fuel Cell Technologies Program Kick-off Meeting September 30 - October 1, 2009 Washington DC Operated by Los Alamos National Security, LLC for NNSA U

  1. Novel Hydrogen Purification Device Integrated with PEM Fuel Cells

    SciTech Connect (OSTI)

    Joseph Schwartz; Hankwon Lim; Raymond Drnevich

    2010-12-31

    A prototype device containing twelve membrane tubes was designed, built, and demonstrated. The device produced almost 300 scfh of purified hydrogen at 200 psig feed pressure. The extent of purification met the program target of selectively removing enough impurities to enable industrial-grade hydrogen to meet purity specifications for PEM fuel cells. An extrusion process was developed to produce substrate tubes. Membranes met several test objectives, including completing 20 thermal cycles, exceeding 250 hours of operating life, and demonstrating a flux of 965 scfh/ft2 at 200 psid and 400 C.

  2. International Stationary Fuel Cell Demonstration

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

    INTERNATIONAL STATIONARY FUEL CELL DEMONSTRATION John Vogel, Plug Power Inc. Yu-Min Tsou, PEMEAS E-TEK 14 February, 2007 Clean, Reliable On-site Energy SAFE HARBOR STATEMENT This presentation contains forward-looking statements, including statements regarding the company's future plans and expectations regarding the development and commercialization of fuel cell technology. All forward-looking statements are subject to risks, uncertainties and assumptions that could cause actual results to

  3. Hydrogen PEM Fuel Cells: A Market Need Provides Research Opportunities

    SciTech Connect (OSTI)

    Payne, Terry L; Brown, Gilbert M; Bogomolny, David

    2010-01-01

    It has been said that necessity is the mother of invention. Another way this can be stated is that market demands create research opportunities. Because of the increasing demand for oil (especially for fueling vehicles utilizing internal combustion engines) and the fact that oil is a depleting (not renewable) energy source, a market need for a renewable source of energy has created significant opportunities for research. This paper addresses the research opportunities associated with producing a market competitive (i.e., high performance, low cost and durable) hydrogen proton exchange membrane (PEM) fuel cell. Of the many research opportunities, the primary ones to be addressed directly are: Alternative membrane materials, Alternative catalysts, Impurity effects, and Water transport. A status of Department of Energy-sponsored research in these areas will be summarized and the impact of each on the ability to develop a market-competitive hydrogen PEM fuel cell powered vehicle will be discussed. Also, activities of the International Partnership for the Hydrogen Economy in areas such as advanced membranes for fuel cells and materials for storage will be summarized.

  4. Process simulation of a PEM fuel cell system

    SciTech Connect (OSTI)

    Ledjeff-Hey, K.; Roes, J.; Formanski, V.; Gieshoff, J.; Vogel, B.

    1996-01-01

    The thermodynamic performance of a PEM fuel cell system for producing electrical power from natural gas is investigated by considering the flows of energy and energy through the various steps of the whole system. The flows of energy are evaluated using a computer code for energy and energy analyses. The fuel cell system is designed to produce a hydrogen volumetric flow of nearly 5.0 m{sup 3} {sub NTP}/h, provided to the fuel cell at an absolute pressure of 2.9 bar. The fuel cell itself is working with an efficiency of about 60 % at an operating temperature of 65 - 75{degrees} C with an air ratio of four and provides a maximum electric power of 9 kW. Taking into consideration only the produced electric power as useful output of the fuel cell system a total efficiency of 42.2 % is calculated using the simulation results.

  5. Method of making MEA for PEM/SPE fuel cell

    DOE Patents [OSTI]

    Hulett, Jay S.

    2000-01-01

    A method of making a membrane-electrode-assembly (MEA) for a PEM/SPE fuel cell comprising applying a slurry of electrode-forming material directly onto a membrane-electrolyte film. The slurry comprises a liquid vehicle carrying catalyst particles and a binder for the catalyst particles. The membrane-electrolyte is preswollen by contact with the vehicle before the electrode-forming slurry is applied to the membrane-electrolyte. The swollen membrane-electrolyte is constrained against shrinking in the "x" and "y" directions during drying. Following assembly of the fuel cell, the MEA is rehydrated inside the fuel cell such that it swells in the "z" direction for enhanced electrical contact with contiguous electrically conductive components of the fuel cell.

  6. Cerium migration during PEM fuel cell assembly and operation

    SciTech Connect (OSTI)

    Baker, Andrew M.; Torraco, Dennis; Judge, Elizabeth J.; Spernjak, Dusan; Mukundan, Rangachary; Borup, Rod L.; Advani, Suresh G.; Prasad, Ajay K.

    2015-09-14

    Cerium migration between PEM fuel cell components is influenced by potential-driven mobility, ionic diffusion, and gradients in water content. These factors were investigated in ex situ experiments and in operating fuel cells. Potential-induced migration was measured ex situ in hydrated window cells. Cerium-containing MEAs were also fabricated and tested under ASTs. MEA disassembly and subsequent XRF analysis were used to observe rapid cerium migration during cell assembly and operation. During MEA hot pressing, humidification, and low RH operation at OCV, ionic diffusion causes uniform migration from the membrane into the catalyst layers. During high RH operation at OCV, in-plane cerium gradients arise due to variations in water content. These gradients may diminish the scavenging efficacy of cerium by reducing its proximity to generated radicals.

  7. Cerium migration during PEM fuel cell assembly and operation

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

    Baker, Andrew M.; Torraco, Dennis; Judge, Elizabeth J.; Spernjak, Dusan; Mukundan, Rangachary; Borup, Rod L.; Advani, Suresh G.; Prasad, Ajay K.

    2015-09-14

    Cerium migration between PEM fuel cell components is influenced by potential-driven mobility, ionic diffusion, and gradients in water content. These factors were investigated in ex situ experiments and in operating fuel cells. Potential-induced migration was measured ex situ in hydrated window cells. Cerium-containing MEAs were also fabricated and tested under ASTs. MEA disassembly and subsequent XRF analysis were used to observe rapid cerium migration during cell assembly and operation. During MEA hot pressing, humidification, and low RH operation at OCV, ionic diffusion causes uniform migration from the membrane into the catalyst layers. During high RH operation at OCV, in-plane ceriummore » gradients arise due to variations in water content. These gradients may diminish the scavenging efficacy of cerium by reducing its proximity to generated radicals.« less

  8. A portable power system using PEM fuel cells

    SciTech Connect (OSTI)

    Long, E.

    1997-12-31

    Ball has developed a proof-of-concept, small, lightweight, portable power system. The power system uses a proton exchange membrane (PEM) fuel cell stack, stored hydrogen, and atmospheric oxygen as the oxidant to generate electrical power. Electronics monitor the system performance to control cooling air and oxidant flow, and automatically do corrective measures to maintain performance. With the controller monitoring the system health, the system can operate in an ambient environment from 0 C to +50 C. The paper describes system testing, including load testing, thermal and humidity testing, vibration and shock testing, field testing, destructive testing of high-pressure gas tanks, and test results on the fuel cell power system, metal hydride hydrogen storage, high-pressure hydrogen gas storage, and chemical hydride hydrogen storage.

  9. Cost Analysis of PEM Fuel Cell Systems for Transportation: September 30, 2005

    SciTech Connect (OSTI)

    Carlson, E. J.; Kopf, P.; Sinha, J.; Sriramulu, S.; Yang, Y.

    2005-12-01

    The results of sensitivity and Monte Carlo analyses on PEM fuel cell components and the overall system are presented including the most important cost factors and the effects of selected scenarios.

  10. Fuel Cell Tech Team Accelerated Stress Test and Polarization Curve Protocols for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    Accelerated stress test and polarization curve protocols developed by the U.S. DRIVE Fuel Cell Technical Team for polymer electrolyte membrane (PEM) fuel cells, revised January 14, 2013.

  11. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems...

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

    estimates fuel cell system cost for systems produced in the years 2006, 2010, and 2015, and is the ... Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for ...

  12. Research and Development of a PEM Fuel Cell, Hydrogen Reformer, and Vehicle Refueling Facility

    Broader source: Energy.gov [DOE]

    Technical paper on the development of a hydrogen reformer, vehicle refueling facility, and PEM fuel cell for Las Vegas, NV presented at the 2002 Annual Hydrogen Review held May 6-8, 2002 in Golden, CO.

  13. PEM Electrolyzer Incorporating an Advanced Low-Cost Membrane

    SciTech Connect (OSTI)

    Hamdan, Monjid

    2013-08-29

    The Department of Energy (DOE) has identified hydrogen production by electrolysis of water at forecourt stations as a critical technology for transition to the hydrogen economy; however, the cost of hydrogen produced by present commercially available electrolysis systems is considerably higher than the DOE 2015 and 2020 cost targets. Analyses of proton-exchange membrane (PEM) electrolyzer systems indicate that reductions in electricity consumption and electrolyzer stack and system capital cost are required to meet the DOE cost targets. The primary objective is to develop and demonstrate a cost-effective energy-based system for electrolytic generation of hydrogen. The goal is to increase PEM electrolyzer efficiency and to reduce electrolyzer stack and system capital cost to meet the DOE cost targets for distributed electrolysis. To accomplish this objective, work was conducted by a team consisting of Giner, Inc. (Giner), Virginia Polytechnic Institute & University (VT), and domnick hunter group, a subsidiary of Parker Hannifin (Parker). The project focused on four (4) key areas: (1) development of a high-efficiency, high-strength membrane; (2) development of a long-life cell-separator; (3) scale-up of cell active area to 290 cm2 (from 160 cm²); and (4) development of a prototype commercial electrolyzer system. In each of the key stack development areas Giner and our team members conducted focused development in laboratory-scale hardware, with analytical support as necessary, followed by life-testing of the most promising candidate materials. Selected components were then scaled up and incorporated into low-cost scaled-up stack hardware. The project culminated in the fabrication and testing of a highly efficient electrolyzer system for production of 0.5 kg/hr hydrogen and validation of the stack and system in testing at the National Renewable Energy Laboratory (NREL).

  14. Identification and Characterization of Near-Term Direct Hydrogen PEM Fuel

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

    Cell Markets | Department of Energy Identification and Characterization of Near-Term Direct Hydrogen PEM Fuel Cell Markets Identification and Characterization of Near-Term Direct Hydrogen PEM Fuel Cell Markets July 9th presentation for the U.S. DOE HFCIT bi-montly informational call series for state and regional initiatives mahadevan.pdf (1.13 MB) More Documents & Publications Full Fuel-Cycle Comparison of Forklift Propulsion Systems Early Markets: Fuel Cells for Material Handling

  15. PEM Fuel Cell Pre-Solicitation Workshop Questions & Answers | Department of

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

    Energy Pre-Solicitation Workshop Questions & Answers PEM Fuel Cell Pre-Solicitation Workshop Questions & Answers Questions & Answers about Department of Energy Hydrogen Program fuel cell solicitation. pem_fuel_wksp_qa.pdf (111.93 KB) More Documents & Publications Fuel Cell R&D Pre-Solicitiation Workshop DOE Hydrogen Program Manufacturing R&D Pre-Solicitation Meeting Integration of MEA Components-Status and Technology Gaps: A Stakeholder's Perspective

  16. Development of a New Generation, High Efficiency PEM Fuel Cell Based, CHP

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

    System | Department of Energy a New Generation, High Efficiency PEM Fuel Cell Based, CHP System Development of a New Generation, High Efficiency PEM Fuel Cell Based, CHP System Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 7_intelligent.pdf (22.28 KB) More Documents & Publications 2012 Pathways to Commercial Success: Technologies and Products Supported by the Fuel Cell Technologies Program 2011 Pathways to Commercial Success: Technologies and

  17. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for

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

    Automotive Applications: 2007 Update | Department of Energy Applications: 2007 Update Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Applications: 2007 Update This report estimates fuel cell system cost for systems produced in the years 2007, 2010, and 2015, and is the first annual update of a comprehensive automotive fuel cell cost analysis. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Applications: 2007 Update (3.19

  18. Development of Ultra-low Platinum Alloy Cathode Catalyst for PEM Fuel Cells

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

    | Department of Energy Ultra-low Platinum Alloy Cathode Catalyst for PEM Fuel Cells Development of Ultra-low Platinum Alloy Cathode Catalyst for PEM Fuel Cells These slides were presented at the 2010 New Fuel Cell Projects Meeting on September 28, 2010. 7_usc_popov.pdf (1.59 MB) More Documents & Publications DOE's Fuel Cell Catalyst R&D Activities 2006 Alkaline Membrane Fuel Cell Workshop Final Report Highly Dispersed Alloy Cathode Catalyst for Durability

  19. Analysis of the Durability of PEM FC Membrane Electrode Assemblies in

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

    Automotive Applications | Department of Energy the Durability of PEM FC Membrane Electrode Assemblies in Automotive Applications Analysis of the Durability of PEM FC Membrane Electrode Assemblies in Automotive Applications These slides were presented at the 2010 New Fuel Cell Projects Meeting on September 28, 2010. 10_dupont_perry.pdf (204.87 KB) More Documents & Publications DOE Fuel Cell Pre-Solicitation Workshop - Breakout Group 2: MEAs, Components, and Integration Membranes and MEAs

  20. Trends in stationary energy | Department of Energy

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

    Trends in stationary energy Trends in stationary energy Trends in Stationary Energy Lunch Presentation for the 2013 Building Technologies Office's Program Peer Review stationaryenergy_mccormick_040213.pdf (816.41 KB) More Documents & Publications The Water-Energy Nexus: Challenges and Opportunities Capturing the Benefits of Integrated Resource Management for Water & Electricity Utilities and their Partners QER Public Meeting in San Francisco, CA: The Water-Energy Nexus

  1. Transportation and Stationary Power Integration Workshop Session...

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

    Integration Workshop Session II: State and Industry Perspectives Transportation and Stationary Power Integration Workshop Session II: State and Industry Perspectives Opportunities ...

  2. Transportation and Stationary Power Integration Workshop Agenda...

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

    Agenda, October 27, 2008, Phoenix, Arizonia Transportation and Stationary Power Integration Workshop Agenda, October 27, 2008, Phoenix, Arizonia Agenda for the Transportation and ...

  3. Transportation and Stationary Power Integration: Workshop Proceedings...

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

    Proceedings for the Transportation and Stationary Power Integration Workshop held on ... U.S. DOE Hydrogen and Fuel Cell Activities: 2010 International Hydrogen Fuel and Pressure ...

  4. Draft Funding Opportunity Announcement for Research and Development of Polymer Electrolyte Membrane (PEM) Fuel Cells for the Hydrogen Economy

    Office of Energy Efficiency and Renewable Energy (EERE)

    Proposed statement of work for the upcoming solicitation for Research and Development of Polymer Electrolyte Membrane (PEM) Fuel Cells for the Hydrogen Economy.

  5. Engineered nano-scale ceramic supports for PEM fuel cells

    SciTech Connect (OSTI)

    Brosha, Eric L; Blackmore, Karen J; Burrell, Anthony K; Henson, Neil J; Phillips, Jonathan

    2010-01-01

    Catalyst support durability is currently a technical barrier for commercialization of polymer electrolyte membrane (PEM) fuel cells, especially for transportation applications. Degradation and corrosion of the conventional carbon supports leads to losses in active catalyst surface area and, consequently, reduced performance. As a result, the major aim of this work is to develop support materials that interact strongly with Pt, yet sustain bulk-like catalytic activities with very highly dispersed particles. This latter aspect is key to attaining the 2015 DOE technical targets for platinum group metal (PGM) loadings (0.20 mg/cm{sup 2}). The benefits of the use of carbon-supported catalysts to drastically reduce Pt loadings from the early, conventional Pt-black technology are well known. The supported platinum catalyzed membrane approach widely used today for fabrication of membrane electrode assemblies (MEAs) was developed shortly thereafter these early reports. Of direct relevance to this present work, are the investigations into Pt particle growth in PEM fuel cells, and subsequent follow-on work showing evidence of Pt particles suspended free of the support within the catalyst layer. Further, durability work has demonstrated the detrimental effects of potential cycling on carbon corrosion and the link between electrochemical surface area and particle growth. To avoid the issues with carbon degradation altogether, it has been proposed by numerous fuel cell research groups to replace carbon supports with conductive materials that are ceramic in nature. Intrinsically, these many conductive oxides, carbides, and nitrides possess the prerequisite electronic conductivity required, and offer corrosion resistance in PEMFC environments; however, most reports indicate that obtaining sufficient surface area remains a significant barrier to obtaining desirable fuel ceU performance. Ceramic materials that exhibit high electrical conductivity and necessary stability under fuel

  6. Novel Catalyst Support Materials for PEM Fuel Cells: Current Status and Future Prospects

    SciTech Connect (OSTI)

    Shao, Yuyan; Liu, Jun; Wang, Yong; Lin, Yuehe

    2008-12-15

    The catalyst supports exhibit great influence on the cost, performance, and durability of polymer electrolyte membrane (PEM) fuel cells. This review paper is to summarize several important kinds of novel support materials for PEM fuel cells (including direct methanol fuel cell, DMFC): nanostructured carbon materials (carbon nanotubes/carbon nanofibers, mesoporous carbon), conductive doped diamonds and nanodiamonds, conductive oxides (tin oxide/indium tin oxide, titanium oxide, tungsten oxide) and carbides (tungsten carbides). The advantages and disadvantages, the acting mechanism to promote electrocatalysis, and the strategies to improve present catalyst support materials and to search for new ones are discussed. This is expected to throw light on future development of catalyst support for PEM fuel cells.

  7. The Corrosion of PEM Fuel Cell Catalyst Supports and Its Implications for Developing Durable Catalysts

    SciTech Connect (OSTI)

    Shao, Yuyan; Wang, Jun; Kou, Rong; Engelhard, Mark H.; Liu, Jun; Wang, Yong; Lin, Yuehe

    2009-01-03

    Studying the corrosion behavior of catalyst support materials is of great significance for understanding the degradation of PEM fuel cell performance and developing durable catalysts. The oxidation of Vulcan carbon black (the most widely-used catalyst support for PEM fuel cells) was investigated using various electrochemical stressing methods (fixed-potential holding vs. potential step cycling), among which the potential step cycling was considered to mimic more closely the real drive cycle operation of vehicle PEM fuel cells. The oxidation of carbon was accelerated under potential step conditions as compared with the fixed-potential holding condition. Increasing potential step frequency or decreasing the lower potential limit in the potential step can further accelerate the corrosion of carbon. The accelerated corrosion of carbon black was attributed to the cycle of consumption/regeneration of some easily oxidized species. These findings are being employed to develop a test protocol for fast screening durable catalyst support.

  8. Study of Stationary Phase Metabolism Via Isotopomer Analysis...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Study of Stationary Phase Metabolism Via Isotopomer Analysis of Amino Acids from an Isolated Protein Citation Details In-Document Search Title: Study of Stationary ...

  9. DOE Technical Targets for Fuel Cell Systems for Stationary (Combined...

    Energy Savers [EERE]

    Stationary (Combined Heat and Power) Applications DOE Technical Targets for Fuel Cell ... is running. g Battelle preliminary 2015 cost assessment of stationary CHP systems, ...

  10. Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage...

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

    Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October 2012) Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October 2012) DOE's Energy Storage...

  11. Cost Analysis of NOx Control Alternatives for Stationary Gas...

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

    Cost Analysis of NOx Control Alternatives for Stationary Gas Turbines, November 1999 Cost Analysis of NOx Control Alternatives for Stationary Gas Turbines, November 1999 The use of ...

  12. Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage...

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

    Lithium-Ion Batteries for Stationary Energy Storage (October 2012) Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October 2012) DOE's Energy Storage Program is ...

  13. Webinar: Procuring Fuel Cells for Stationary Power: A Guide for...

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

    Procuring Fuel Cells for Stationary Power: A Guide for Federal Decision Makers Webinar: Procuring Fuel Cells for Stationary Power: A Guide for Federal Decision Makers Download ...

  14. Procuring Fuel Cells for Stationary Power: A Guide for Federal...

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

    Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers This ...

  15. Webinar: Procuring Fuel Cells for Stationary Power: A Guide for...

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

    Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers Webinar: Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision ...

  16. Overview of Options to Integrate Stationary Power Generation...

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

    Options to Integrate Stationary Power Generation from Fuel Cells with Hydrogen Demand for the Transportation Sector Overview of Options to Integrate Stationary Power Generation ...

  17. Stationary/Distributed Generation Projects | Department of Energy

    Office of Environmental Management (EM)

    StationaryDistributed Generation Projects Stationary power is the most mature application for fuel ... co-generation (in which excess thermal energy from electricity generation ...

  18. Intergovernmental Stationary Fuel Cell System Demonstration ...

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

    Intergovernmental Stationary Fuel Cell System Demonstration Part of a 100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. PDF icon 7bplugpwr.pdf More ...

  19. Transportation and Stationary Power Integration: Workshop Proceedings |

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

    Department of Energy Integration: Workshop Proceedings Transportation and Stationary Power Integration: Workshop Proceedings Proceedings for the Transportation and Stationary Power Integration Workshop held on October 27, 2008 in Phoenix, Arizona tspi_proceedings.pdf (525.7 KB) More Documents & Publications U.S. DOE Hydrogen and Fuel Cell Activities: 2010 International Hydrogen Fuel and Pressure Vessel Forum IPHE Infrastructure Workshop - Workshop Proceedings, February 25-26, 2010

  20. Stationary phase deposition based on onium salts

    DOE Patents [OSTI]

    Wheeler, David R.; Lewis, Patrick R.; Dirk, Shawn M.; Trudell, Daniel E.

    2008-01-01

    Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon based columns, especially microfabricated metal columns. Non-silicon microfabricated columns may be manufactured and processed at a fraction of the cost of silicon-based columns. In addition, the method can be used to phase-coat conventional capillary columns or silicon-based microfabricated columns.

  1. Self-Organized Stationary States of Tokamaks

    SciTech Connect (OSTI)

    Jardin, S. C.; Ferraro, N.; Krebs, I.

    2015-11-01

    We demonstrate that in a 3D resistive magnetohydrodynamic simulation, for some parameters it is possible to form a stationary state in a tokamak where a saturated interchange mode in the center of the discharge drives a near helical flow pattern that acts to nonlinearly sustain the configuration by adjusting the central loop voltage through a dynamo action. This could explain the physical mechanism for maintaining stationary nonsawtoothing "hybrid" discharges, often referred to as "flux pumping."

  2. Adaptive Process Controls and Ultrasonics for High Temperature PEM MEA Manufacture

    SciTech Connect (OSTI)

    Walczyk, Daniel F.

    2015-08-26

    The purpose of this 5-year DOE-sponsored project was to address major process bottlenecks associated with fuel cell manufacturing. New technologies were developed to significantly reduce pressing cycle time for high temperature PEM membrane electrode assembly (MEA) through the use of novel, robust ultrasonic (U/S) bonding processes along with low temperature (<100°C) PEM MEAs. In addition, greater manufacturing uniformity and performance was achieved through (a) an investigation into the causes of excessive variation in ultrasonically and thermally bonded MEAs using more diagnostics applied during the entire fabrication and cell build process, and (b) development of rapid, yet simple quality control measurement techniques for use by industry.

  3. Identification and Characterization of Near-Term Direct Hydrogen PEM Fuel Cell Markets

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

    Identification and Characterization of Near-Term Direct Hydrogen PEM Fuel Cell Markets Kathya Mahadevan, Battelle July 11, 2007 2 Project Objectives To assist DOE in developing fuel cell systems by analyzing the technical, economic, and market drivers of direct hydrogen PEM fuel cell (H-PEMFC) adoption. 2006 support included the following: * Market segmentation of 1-250 kW H-PEMFC into near-term (2008) and mid-term (2012) market opportunities * Lifecycle cost analysis of H-PEMFC and competing

  4. H2S removal with ZnO during fuel processing for PEM fuel cell applications

    SciTech Connect (OSTI)

    Li, Liyu; King, David L.

    2006-09-15

    The possibility of using ZnO as a H2S absorbent to protect catalysts in the gasoline and diesel fuel processor for PEM fuel cell applications was studied. It is possible to use commercial ZnO absorbent as a guard bed to protect the PROX catalyst and PEM fuel cell. However, it is not feasible to use ZnO to protect high and low temperature WGS catalysts, most likely due to COS formation via reactions CO + H2S = COS + H2 and CO2 + H2S = COS + H2O.

  5. Stationary Liquid Fuel Fast Reactor

    SciTech Connect (OSTI)

    Yang, Won Sik; Grandy, Andrew; Boroski, Andrew; Krajtl, Lubomir; Johnson, Terry

    2015-09-30

    For effective burning of hazardous transuranic (TRU) elements of used nuclear fuel, a transformational advanced reactor concept named SLFFR (Stationary Liquid Fuel Fast Reactor) was proposed based on stationary molten metallic fuel. The fuel enters the reactor vessel in a solid form, and then it is heated to molten temperature in a small melting heater. The fuel is contained within a closed, thick container with penetrating coolant channels, and thus it is not mixed with coolant nor flow through the primary heat transfer circuit. The makeup fuel is semi- continuously added to the system, and thus a very small excess reactivity is required. Gaseous fission products are also removed continuously, and a fraction of the fuel is periodically drawn off from the fuel container to a processing facility where non-gaseous mixed fission products and other impurities are removed and then the cleaned fuel is recycled into the fuel container. A reference core design and a preliminary plant system design of a 1000 MWt TRU- burning SLFFR concept were developed using TRU-Ce-Co fuel, Ta-10W fuel container, and sodium coolant. Conservative design approaches were adopted to stay within the current material performance database. Detailed neutronics and thermal-fluidic analyses were performed to develop a reference core design. Region-dependent 33-group cross sections were generated based on the ENDF/B-VII.0 data using the MC2-3 code. Core and fuel cycle analyses were performed in theta-r-z geometries using the DIF3D and REBUS-3 codes. Reactivity coefficients and kinetics parameters were calculated using the VARI3D perturbation theory code. Thermo-fluidic analyses were performed using the ANSYS FLUENT computational fluid dynamics (CFD) code. Figure 0.1 shows a schematic radial layout of the reference 1000 MWt SLFFR core, and Table 0.1 summarizes the main design parameters of SLFFR-1000 loop plant. The fuel container is a 2.5 cm thick cylinder with an inner radius of 87.5 cm. The fuel

  6. Next Generation Bipolar Plates for Automotive PEM Fuel Cells

    SciTech Connect (OSTI)

    Orest Adrianowycz; Julian Norley; David J. Stuart; David Flaherty; Ryan Wayne; Warren Williams; Roger Tietze; Yen-Loan H. Nguyen; Tom Zawodzinski; Patrick Pietrasz

    2010-04-15

    The results of a successful U.S. Department of Energy (DoE) funded two-year $2.9 MM program lead by GrafTech International Inc. (GrafTech) are reported and summarized. The program goal was to develop the next generation of high temperature proton exchange membrane (PEM) fuel cell bipolar plates for use in transportation fuel cell applications operating at temperatures up to 120 °C. The bipolar plate composite developed during the program is based on GrafTech’s GRAFCELL resin impregnated flexible graphite technology and makes use of a high temperature Huntsman Advanced Materials resin system which extends the upper use temperature of the composite to the DoE target. High temperature performance of the new composite is achieved with the added benefit of improvements in strength, modulus, and dimensional stability over the incumbent resin systems. Other physical properties, including thermal and electrical conductivity of the new composite are identical to or not adversely affected by the new resin system. Using the new bipolar plate composite system, machined plates were fabricated and tested in high temperature single-cell fuel cells operating at 120 °C for over 1100 hours by Case Western Reserve University. Final verification of performance was done on embossed full-size plates which were fabricated and glued into bipolar plates by GrafTech. Stack testing was done on a 10-cell full-sized stack under a simulated drive cycle protocol by Ballard Power Systems. Freeze-thaw performance was conducted by Ballard on a separate 5-cell stack and shown to be within specification. A third stack was assembled and shipped to Argonne National Laboratory for independent performance verification. Manufacturing cost estimate for the production of the new bipolar plate composite at current and high volume production scenarios was performed by Directed Technologies Inc. (DTI). The production cost estimates were consistent with previous DoE cost estimates performed by DTI for

  7. Transportation and Stationary Power Integration Workshop Session II: State

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

    and Industry Perspectives | Department of Energy Integration Workshop Session II: State and Industry Perspectives Transportation and Stationary Power Integration Workshop Session II: State and Industry Perspectives Opportunities and questions regarding transportation and stationary power integration tspi_devlin.pdf (130.36 KB) More Documents & Publications Transportation and Stationary Power Integration Workshop Agenda, October 27, 2008, Phoenix, Arizonia Transportation and Stationary

  8. Patriot Script 1.0.13 User Guide for PEM 1.3.2

    SciTech Connect (OSTI)

    Cleland, Timothy James; Kubicek, Deborah Ann; Stroud, Phillip David; Cuellar-Hengartner, Leticia; Mathis, Mark

    2015-11-02

    This document provides an updated user guide for Patriot Script Version 1.0.13, for release with PEM 1.3.1 (LAUR-1422817) that adds description and instructions for the new excursion capability (see section 4.5.1).

  9. 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

  10. PEM fuel cell cost minimization using ``Design For Manufacture and Assembly`` techniques

    SciTech Connect (OSTI)

    Lomax, F.D. Jr.; James, B.D.; Mooradian, R.P.

    1997-12-31

    Polymer Electrolyte Membrane (PEM) fuel cells fueled with direct hydrogen have demonstrated substantial technical potential to replace Internal Combustion Engines (ICE`s) in light duty vehicles. Such a transition to a hydrogen economy offers the potential of substantial benefits from reduced criteria and greenhouse emissions as well as reduced foreign fuel dependence. Research conducted for the Ford Motor Co. under a US Department of Energy contract suggests that hydrogen fuel, when used in a fuel cell vehicle (FCV), can achieve a cost per vehicle mile less than or equal to the gasoline cost per mile when used in an ICE vehicle. However, fuel cost parity is not sufficient to ensure overall economic success: the PEM fuel cell power system itself must be of comparable cost to the ICE. To ascertain if low cost production of PEM fuel cells is feasible, a powerful set of mechanical engineering tools collectively referred to as Design for Manufacture and Assembly (DFMA) has been applied to several representative PEM fuel cell designs. The preliminary results of this work are encouraging, as presented.

  11. Self-Organized Stationary States of Tokamaks

    SciTech Connect (OSTI)

    Jardin, S. C.; Ferraro, N.; Krebs, I.

    2015-11-17

    We demonstrate that in a 3D resistive magnetohydrodynamic (MHD) simulation, for some parameters it is possible to form a stationary state in a tokamak where a saturated interchange mode in the center of the discharge drives a near helical flow pattern that acts to non-linearly sustain the configuration by adjusting the central loop voltage through a dynamo action. This could explain the physical mechanism for maintaining stationary non-sawtoothing “hybrid” discharges, often referred to as “flux-pumping”.

  12. Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility

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

    3-0501 Unlimited Release Printed February 2013 Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility Joseph W. Pratt and Aaron P. Harris Prepared by Sandia National Laboratories Albuquerque, New Mexico 87185 and Livermore, California 94550 Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security

  13. Panel 3, PEM Electrolysis Technology R&D and Near-Term Market Potential

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

    Technology R&D and Near-Term Market Potential 5/15/14 Stephen Szymanski Director - Government Business sszymanski@protononsite.com 203.678.2338 Proton OnSite: Current Status * Industrial markets form base for commercial sales - 50% growth over last 2 years g y - Clear technology leader in PEM electrolysis - >2000 fielded units, 10 MW capacity shipped , p y pp * Continuing to scale output and manufacturing capability Industrial Markets Power Plants Energy Markets capability Power Plants

  14. Process for recycling components of a PEM fuel cell membrane electrode assembly

    SciTech Connect (OSTI)

    Shore, Lawrence

    2012-02-28

    The membrane electrode assembly (MEA) of a PEM fuel cell can be recycled by contacting the MEA with a lower alkyl alcohol solvent which separates the membrane from the anode and cathode layers of the assembly. The resulting solution containing both the polymer membrane and supported noble metal catalysts can be heated under mild conditions to disperse the polymer membrane as particles and the supported noble metal catalysts and polymer membrane particles separated by known filtration means.

  15. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for

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

    Automotive Applications: 2010 Update | Department of Energy Applications: 2010 Update Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Applications: 2010 Update This report is the fourth annual update of a comprehensive automotive fuel cell cost analysis. It contains estimates for material and manufacturing costs of complete 80 kWnet direct-hydrogen proton exchange membrane fuel cell systems suitable for powering light-duty automobiles. Mass Production Cost

  16. Accelerated Stress Test and Polarization Curve Protocols for PEM Fuel Cells

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

    Appendix A: FCTT AST and Polarization Curve Protocols for PEMFCs U.S. DRIVE Fuel Cell Tech Team Cell Component Accelerated Stress Test and Polarization Curve Protocols for PEM Fuel Cells (Electrocatalysts, Supports, Membranes, and Membrane Electrode Assemblies) Last Revision: January 14, 2013 Fuel cells, especially for automotive propulsion, must operate over a wide range of operating and cyclic conditions. The desired operating range encompasses temperatures from below the freezing point to

  17. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Application

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

    Mass Production Cost Estimation for Direct H 2 PEM Fuel Cell Systems for Automotive Applications: 2008 Update March 26, 2009 v.30.2021.052209 Prepared by: Brian D. James & Jeffrey A. Kalinoski One Virginia Square 3601 Wilson Boulevard, Suite 650 Arlington, Virginia 22201 703-243-3383 Prepared for: Contract No. GS-10F-0099J to the U.S. Department of Energy Energy Efficiency and Renewable Energy Office Hydrogen, Fuel Cells & Infrastructure Technologies Program Foreword Energy security is

  18. Mass Production Cost Estimation of Direct Hydrogen PEM Fuel Cell Systems for Transportation Applications: 2012 Update

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

    Mass Production Cost Estimation of Direct H 2 PEM Fuel Cell Systems for Transportation Applications: 2012 Update October 18, 2012 Prepared By: Brian D. James Andrew B. Spisak Revision 4 2 Sponsorship and Acknowledgements This research was conducted under Award Number DE-EE0005236 to the US Department of Energy. The authors wish to thank Dr. Dimitrios Papageorgopoulos and Mr. Jason Marcinkoski of DOE's Office of Energy Efficiency and Renewable Energy (EERE) Fuel Cell Technologies (FCT) Program

  19. Analysis of the Durability of PEM FC Membrane Electrode Assemblies in Automotive Applications

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

    g y Analysis of the Durability of PEM FC Membrane Electrode Assemblies in Automotive Applications Through the Fundamental Understanding of Membrane and MEA Degradation Pathways DE-EE0003772 2010 DOE Hydrogen Program Fuel Cell Project Kick-Off Randal L. Perry E.I. duPont de Nemours September 28 2010 September 28, 2010 This presentation does not contain any proprietary, confidential, or otherwise restricted information" 2 Overview Timeline (tentative) Start date: Oct 1 2010 Start date: Oct 1,

  20. Improving Costs and Efficiency of PEM Fuel Cell Vehicles by Modifying the

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

    Surface of Stainless Steel Bipolar Plates - Energy Innovation Portal Hydrogen and Fuel Cell Hydrogen and Fuel Cell Find More Like This Return to Search Improving Costs and Efficiency of PEM Fuel Cell Vehicles by Modifying the Surface of Stainless Steel Bipolar Plates National Renewable Energy Laboratory Contact NREL About This Technology Technology Marketing SummaryFuel cell vehicles have the potential to reduce our dependence on foreign oil and lower emissions. Running the vehicle's motor

  1. Stationary and Portable Fuel Cell Systems Codes and Standards Citations |

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

    Department of Energy and Portable Fuel Cell Systems Codes and Standards Citations Stationary and Portable Fuel Cell Systems Codes and Standards Citations This document lists codes and standards typically used for U.S. stationary and portable fuel cell systems. Stationary and Portable Fuel Cell Systems Codes and Standards Citations (293.25 KB) More Documents & Publications Hydrogen Vehicle and Infrastructure Codes and Standards Citations National Template: Stationary & Portable Fuel

  2. Molten Carbonate and Phosphoric Acid Stationary Fuel Cells: Overview and

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

    Gap Analysis | Department of Energy Molten Carbonate and Phosphoric Acid Stationary Fuel Cells: Overview and Gap Analysis Molten Carbonate and Phosphoric Acid Stationary Fuel Cells: Overview and Gap Analysis This report describes the technical and cost gap analysis performed to identify pathways for reducing the costs of molten carbonate fuel cell (MCFC) and phosphoric acid fuel cell (PAFC) stationary fuel cell power plants. Molten Carbonate and Phosphoric Acid Stationary Fuel Cells:

  3. Table IV: Technical Targets for Membranes: Stationary | Department of

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

    Energy IV: Technical Targets for Membranes: Stationary Table IV: Technical Targets for Membranes: Stationary "Technical targets for fuel cell membranes in stationary applications defined by the High Temperature Working Group (February 2003). " technical_targets_membr_stat.pdf (83.24 KB) More Documents & Publications Table II: Technical Targets for Membranes: Automotive Table III: Technical Targets for Catalyst Coated Membranes (CCMs): Stationary Table I: Technical Targets for

  4. Transportation and Stationary Power Integration Workshop Agenda, October

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

    27, 2008, Phoenix, Arizonia | Department of Energy Agenda, October 27, 2008, Phoenix, Arizonia Transportation and Stationary Power Integration Workshop Agenda, October 27, 2008, Phoenix, Arizonia Agenda for the Transportation and Stationary Power Integration Workshop held on October 27, 2008 in Phoenix, AZ tspi_agenda.pdf (84.52 KB) More Documents & Publications Transportation and Stationary Power Integration Workshop Attendees List Transportation and Stationary Power Integration:

  5. Transportation and Stationary Power Integration: Workshop Proceedings

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

    Transportation and Stationary Power Integration WORKSHOP PROCEEDINGS Phoenix, Arizona October 27, 2008 Acknowledgements This workshop was planned under the guidance of Marc Melaina of the National Renewable Energy Laboratory (NREL) and Fred Joseck of the Department of Energy's Hydrogen, Fuel Cells & Infrastructure Technologies Program. Workshop organization and facilitation was provided by Energetics, Incorporated in Columbia, Maryland. Breakout group facilitators included Shawna McQueen,

  6. Stationary High-Pressure Hydrogen Storage

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

    Stationary High-Pressure Hydrogen Storage Zhili Feng Oak Ridge National Laboratory 2 Managed by UT-Battelle for the U.S. Department of Energy Technology Gap Analysis for Bulk Storage in Hydrogen Infrastructure Gaseous Hydrogen Delivery Pathway * Bulk storage in hydrogen delivery infrastructure * * Needed at central production plants, geologic storage sites, terminals, and refueling sites * Important to provide surge capacity for hourly, daily, and seasonal demand variations Technical challenges

  7. Table IV: Technical Targets for Membranes: Stationary

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

    IV: Technical Targets for Membranes: Stationary All targets must be achieved simultaneously Characteristics Units Calendar year 2002 status a 2005 2010 Membrane conductivity, operating temperature Ω-cm 2 0.1 0.1 0.1 Oxygen cross-over b mA/cm 2 5 5 2 Hydrogen cross-over b mA/cm 2 5 5 2 Cost $/kW 50 5 Operating Temperature o C 160 160 170 Durability Hours 5000 >15000 >40000 Survivability o C -20 -30 -40 Notes: a) Status is present day 80 o C unless otherwise noted; targets are for new

  8. 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

  9. Final Scientific Report : Development of Transition Metal/ Chalcogen Based Cathode Catalysts for PEM Fuel Cells

    SciTech Connect (OSTI)

    Campbell, Stephen, A.

    2008-02-29

    The aim of this project was to investigate the potential for using base metal sulfides and selenides as low cost replacements for precious metal catalysts, such as platinum, currently being used in PEM fuel cells. The approach was to deposit thin films of the materials to be evaluated onto inert electrodes and evaluate their activity for the cathode reaction (oxygen reduction) as well as ex-situ structural and compositional characterization. The most active materials identified are CoS2 and the 50:50 solid solution (Co,Ni)S2. However, the OCP of these materials is still considered too low, at 0.83V and 0.89V vs. RHE respectively, for testing in fuel cells. The methods employed here were necessary to compare with the activity of platinum as, when nano-dispersed on carbon supports, the active surface area of these materials is difficult to measure, making comparisons inaccurate. This research adds to the knowledge of potential candidates for platinum replacement in order to reduce the cost of PEM fuel cell technology and promote commercialization. Although the fabrication methods employed here are strictly experimental, methods were also developed to produce nano-dispersed catalysts with similar compositions, structure and activity. Cycling of these catalysts to highly oxidizing potentials resulted in an increase of the open circuit voltage to approach that of platinum, however, it proved difficult to determine why using these dispersed materials. The potential for non-precious, non-metallic, low cost, compound catalysts for PEM fuel cells has been investigated and demonstrated.

  10. Platinum-Loading Reduction in PEM Fuel Cells - Energy Innovation Portal

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

    Platinum-Loading Reduction in PEM Fuel Cells Pacific Northwest National Laboratory Contact PNNL About This Technology TEM bright-field and dark-field images of a commercial Pt/C catalyst and a nanoscale Pt-embedded tantalum oxide catalyst. TEM bright-field and dark-field images of a commercial Pt/C catalyst and a nanoscale Pt-embedded tantalum oxide catalyst. Half-cell test results of a commercial Pt/C and a nanoscale Pt-embedded tantalum oxide catalyst for the oxygen reduction reaction.

  11. EXPERIMENTAL AND NUMERICAL ANALYSIS OF SUBFREEZING OPERATION IN PEM FUEL CELLS

    SciTech Connect (OSTI)

    Mukherjee, Partha P

    2010-01-01

    In this work, we present the neutron radiography and analysis, as well as modeling predictions of cold-start operation of PEM fuel cells. Fuel cells with Gore or LANL MEAs and SGL or E-Tek ELAT GDLs are tested in varying subfreezing temperatures (-40 to 0 C) to determine time to failure, amount of water formation, and place of water formation. Theoretical modeling is also conducted and model predictions are compared with the cell voltage evolution during subfreezing operation. A higher PTFE-loading in the MPL is found to decrease loss in ESCA in our case.

  12. Transportation and Stationary Power Integration Workshop | Department of

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

    Energy Transportation and Stationary Power Integration Workshop Transportation and Stationary Power Integration Workshop On October 27, 2008, more than 55 participants from industry, state and federal government, utilities, national laboratories, and other groups met to discuss the topic of integrating stationary fuel cell combined heat and power (CHP) systems and hydrogen production infrastructure for vehicles. The workshop was co-hosted by the U.S. Department of Energy, the U.S. Fuel Cell

  13. Cost Analysis of NOx Control Alternatives for Stationary Gas Turbines,

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

    November 1999 | Department of Energy Cost Analysis of NOx Control Alternatives for Stationary Gas Turbines, November 1999 Cost Analysis of NOx Control Alternatives for Stationary Gas Turbines, November 1999 The use of stationary gas turbines for power generation has been growing rapidly with continuing trends predicted well into the future. This study compares the costs of the principal emission control technologies being employed or nearing commercialization for control of oxides of

  14. Transportation and Stationary Power Integration Workshop Attendees List |

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

    Department of Energy Attendees List Transportation and Stationary Power Integration Workshop Attendees List List of attendees for the Transportation and Stationary Power Integration Workshop tspi_attendees.pdf (84.9 KB) More Documents & Publications Transportation and Stationary Power Integration: Workshop Proceedings DOE Fuel Cell Pre-Solicitation Workshop Participants 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Final List of Attendees

  15. Advanced Materials and Devices for Stationary Electrical Energy Storage

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

    Applications | Department of Energy Materials and Devices for Stationary Electrical Energy Storage Applications Advanced Materials and Devices for Stationary Electrical Energy Storage Applications Reliable access to cost-effective electricity is the backbone of the U.S. economy, and electrical energy storage is an integral element in this system. Without significant investments in stationary electrical energy storage, the current electric grid infrastructure will increasingly struggle to

  16. Power Generating Stationary Engines Nox Control: A Closed Loop Control

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

    Technology | Department of Energy Power Generating Stationary Engines Nox Control: A Closed Loop Control Technology Power Generating Stationary Engines Nox Control: A Closed Loop Control Technology Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. p-11_servati.pdf (355.97 KB) More Documents & Publications A Low-Cost Continuous Emissions Monitoring System for Mobile and Stationary Engine SCR/DPF

  17. Stationary Fuel Cell System Composite Data Products: Data through...

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

    Stationary Fuel Cell System Composite Data Products Data through Quarter 4 of 2014 Genevieve Saur, Jennifer Kurtz, Chris Ainscough, Sam Sprik, Matt Post April 2015 NREL...

  18. Transportation and Stationary Power Integration Workshop: A California...

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

    A California Perspective Transportation and Stationary Power Integration Workshop: A California Perspective Overview of California regulations, latest funded hydrogen stations, and ...

  19. Electron Broadening of Isolated Lines with Stationary Non-Equilibrium...

    Office of Scientific and Technical Information (OSTI)

    Title: Electron Broadening of Isolated Lines with Stationary Non-Equilibrium Level Populations It is shown that a quantum kinetic theory approach to line broadening, extended to ...

  20. Procuring Fuel Cells for Stationary Power: A Guide for Federal...

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

    Decision Makers Procuring Fuel Cells for Stationary Power: A Guide for Federal Decision Makers Download presentation slides from the May 8, 2012, Fuel Cell Technologies Program ...

  1. Stationary and Portable Fuel Cell Systems Codes and Standards...

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

    and portable fuel cell systems. Stationary and Portable Fuel Cell Systems Codes and Standards Citations (293.25 KB) More Documents & Publications Hydrogen Vehicle and ...

  2. Advanced Materials and Devices for Stationary Electrical Energy...

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

    (e.g., the distributed grid and electric vehicles), and the projected increase in renewable energy sources. Advanced Materials and Devices for Stationary Electrical Energy...

  3. Power Generating Stationary Engines Nox Control: A Closed Loop...

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

    Power Generating Stationary Engines Nox Control: A Closed Loop Control Technology Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) ...

  4. 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.

  5. Advanced Materials and Devices for Stationary Electrical Energy...

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

    Materials and Devices for Stationary Electrical Energy Storage Applications Advanced Materials ... the U.S. economy, and electrical energy storage is an integral element in this system. ...

  6. Evaluation of Stationary Fuel Cell Deployments, Costs, and Fuels (Presentation)

    SciTech Connect (OSTI)

    Ainscough, C.; Kurtz, J.; Peters, M.; Saur, G.

    2013-10-01

    This presentation summarizes NREL's technology validation of stationary fuel cell systems and presents data on number of deployments, system costs, and fuel types.

  7. The Greenhouse Gas Protocol Initiative: GHG Emissions from Stationary...

    Open Energy Info (EERE)

    Interface: Spreadsheet Website: www.ghgprotocol.orgcalculation-toolsall-tools Cost: Free References: Stationary Combustion Guidance1 The Greenhouse Gas Protocol tool for...

  8. Stationary turbine component with laminated skin

    DOE Patents [OSTI]

    James, Allister W.

    2012-08-14

    A stationary turbine engine component, such as a turbine vane, includes a internal spar and an external skin. The internal spar is made of a plurality of spar laminates, and the external skin is made of a plurality of skin laminates. The plurality of skin laminates interlockingly engage the plurality of spar laminates such that the external skin is located and held in place. This arrangement allows alternative high temperature materials to be used on turbine engine components in areas where their properties are needed without having to make the entire component out of such material. Thus, the manufacturing difficulties associated with making an entire component of such a material and the attendant high costs are avoided. The skin laminates can be made of advanced generation single crystal superalloys, intermetallics and refractory alloys.

  9. 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.

  10. PEM fuel cell stack performance using dilute hydrogen mixture. Implications on electrochemical engine system performance and design

    SciTech Connect (OSTI)

    Inbody, M.A.; Vanderborgh, N.E.; Hedstrom, J.C.; Tafoya, J.I.

    1996-12-31

    Onboard fuel processing to generate a hydrogen-rich fuel for PEM fuel cells is being considered as an alternative to stored hydrogen fuel for transportation applications. If successful, this approach, contrasted to operating with onboard hydrogen, utilizes the existing fuels infrastructure and provides required vehicle range. One attractive, commercial liquid fuels option is steam reforming of methanol. However, expanding the liquid methanol infrastructure will take both time and capital. Consequently technology is also being developed to utilize existing transportation fuels, such as gasoline or diesel, to power PEM fuel cell systems. Steam reforming of methanol generates a mixture with a dry gas composition of 75% hydrogen and 25% carbon dioxide. Steam reforming, autothermal reforming, and partial oxidation reforming of C{sub 2} and larger hydrocarbons produces a mixture with a more dilute hydrogen concentration (65%-40%) along with carbon dioxide ({approx}20%) and nitrogen ({approx}10%-40%). Performance of PEM fuel cell stacks on these dilute hydrogen mixtures will affect the overall electrochemical engine system design as well as the overall efficiency. The Los Alamos Fuel Cell Stack Test facility was used to access the performance of a PEM Fuel cell stack over the range of gas compositions chosen to replicate anode feeds from various fuel processing options for hydrocarbon and alcohol fuels. The focus of the experiments was on the anode performance with dilute hydrogen mixtures with carbon dioxide and nitrogen diluents. Performance with other anode feed contaminants, such as carbon monoxide, are not reported here.

  11. Transportation and Stationary Power Integration Workshop: A California

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

    Perspective | Department of Energy A California Perspective Transportation and Stationary Power Integration Workshop: A California Perspective Overview of California regulations, latest funded hydrogen stations, and funding mechanisms tspi_tollstrup.pdf (398.75 KB) More Documents & Publications QER - Comment of California Air Resources Board Transportation and Stationary Power Integration: Workshop Proceedings National Idling Reduction Network News - March 2013

  12. Irreversible reactions and diffusive escape: Stationary properties

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

    Krapivsky, Paul L.; Ben-Naim, Eli

    2015-05-01

    We study three basic diffusion-controlled reaction processes—annihilation, coalescence, and aggregation. We examine the evolution starting with the most natural inhomogeneous initial configuration where a half-line is uniformly filled by particles, while the complementary half-line is empty. We show that the total number of particles that infiltrate the initially empty half-line is finite and has a stationary distribution. We determine the evolution of the average density from which we derive the average total number N of particles in the initially empty half-line; e.g. for annihilationmore » $$\\langle N\\rangle = \\frac{3}{16}+\\frac{1}{4\\π}$$ . For the coalescence process, we devise a procedure that in principle allows one to compute P(N), the probability to find exactly N particles in the initially empty half-line; we complete the calculations in the first non-trivial case (N = 1). As a by-product we derive the distance distribution between the two leading particles.« less

  13. Stationary power fuel cell commercialization status worldwide

    SciTech Connect (OSTI)

    Williams, M.C.

    1996-12-31

    Fuel cell technologies for stationary power are set to play a role in power generation applications worldwide. The worldwide fuel cell vision is to provide powerplants for the emerging distributed generation and on-site markets. Progress towards commercialization has occurred in all fuel cell development areas. Around 100 ONSI phosphoric acid fuel cell (PAFC) units have been sold, with significant foreign sales in Europe and Japan. Fuji has apparently overcome its PAFC decay problems. Industry-driven molten carbonate fuel cell (MCFC) programs in Japan and the U.S. are conducting megawatt (MW)-class demonstrations, which are bringing the MCFC to the verge of commercialization. Westinghouse Electric, the acknowledged world leader in tubular solid oxide fuel cell (SOFC) technology, continues to set performance records and has completed construction of a 4-MW/year manufacturing facility in the U.S. Fuel cells have also taken a major step forward with the conceptual development of ultra-high efficiency fuel cell/gas turbine plants. Many SOFC developers in Japan, Europe, and North America continue to make significant advances.

  14. A Novel Non-Platinum Group Electrocatalyst for PEM Fuel Cell Application

    SciTech Connect (OSTI)

    Kim, Jin Yong; Oh, Takkeun; Shin, Yongsoon; Bonnett, Jeff F.; Weil, K. Scott

    2011-04-01

    Precious-metal catalysts (predominantly Pt or Pt-based alloys supported on carbon) have traditionally been used to catalyze the electrode reactions in polymer electrolyte membrane (PEM) fuel cells. However as PEM fuel systems begin to approach commercial reality, there is an impending need to replace Pt with a lower cost alternative. The present study investigates the performance of a carbon-supported tantalum oxide material as a potential oxygen reduction reaction (ORR) catalyst for use on the cathode side of the PEM fuel cell membrane electrode assembly. Although bulk tantalum oxide tends to exhibit poor electrochemical performance due to limited electrical conductivity, it displays a high oxygen reduction potential; one that is comparable to Pt. Analysis of the Pourbaix electrochemical equilibrium database also indicates that tantalum oxide (Ta2O5) is chemically stable under the pH and applied potential conditions to which the cathode catalyst is typically exposed during stack operation. Nanoscale tantalum oxide catalysts were fabricated using two approaches, by reactive oxidation sputtering and by direct chemical synthesis, each carried out on a carbon support material. Nanoscale tantalum oxide particles measuring approximately 6nm in size that were sputtered onto carbon paper exhibited a mass-specific current density as high as one-third that of Pt when measured at 0.6V vs. NHE. However because of the two-dimensional nature of this particle-on-paper structure, which limits the overall length of the triple phase boundary junctions where the oxide, carbon paper, and aqueous electrolyte meet, the corresponding area-specific current density was quite low. The second synthesis approach yielded a more extended, three-dimensional structure via chemical deposition of nanoscale tantalum oxide particles on carbon powder. These catalysts exhibited a high ORR onset potential, comparable to that of Pt, and displayed a significant improvement in the area-specific current

  15. Iron-based alloy and nitridation treatment for PEM fuel cell bipolar plates

    DOE Patents [OSTI]

    Brady, Michael P. [Oak Ridge, TN; Yang, Bing [Oak Ridge, TN; Maziasz, Philip J. [Oak Ridge, TN

    2010-11-09

    A corrosion resistant electrically conductive component that can be used as a bipolar plate in a PEM fuel cell application is composed of an alloy substrate which has 10-30 wt. % Cr, 0.5 to 7 wt. % V, and base metal being Fe, and a continuous surface layer of chromium nitride and vanadium nitride essentially free of base metal. A oxide layer of chromium vanadium oxide can be disposed between the alloy substrate and the continuous surface nitride layer. A method to prepare the corrosion resistant electrically conductive component involves a two-step nitridization sequence by exposing the alloy to a oxygen containing gas at an elevated temperature, and subsequently exposing the alloy to an oxygen free nitrogen containing gas at an elevated temperature to yield a component where a continuous chromium nitride layer free of iron has formed at the surface.

  16. Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility.

    SciTech Connect (OSTI)

    Pratt, Joseph William; Harris, Aaron P

    2013-01-01

    A barge-mounted hydrogen-fueled proton exchange membrane (PEM) fuel cell system has the potential to reduce emissions and fossil fuel use of maritime vessels in and around ports. This study determines the technical feasibility of this concept and examines specific options on the U.S. West Coast for deployment practicality and potential for commercialization.The conceptual design of the system is found to be straightforward and technically feasible in several configurations corresponding to various power levels and run times.The most technically viable and commercially attractive deployment options were found to be powering container ships at berth at the Port of Tacoma and/or Seattle, powering tugs at anchorage near the Port of Oakland, and powering refrigerated containers on-board Hawaiian inter-island transport barges. Other attractive demonstration options were found at the Port of Seattle, the Suisun Bay Reserve Fleet, the California Maritime Academy, and an excursion vessel on the Ohio River.

  17. On-board diesel autothermal reforming for PEM fuel cells: Simulation and optimization

    SciTech Connect (OSTI)

    Cozzolino, Raffaello Tribioli, Laura

    2015-03-10

    Alternative power sources are nowadays the only option to provide a quick response to the current regulations on automotive pollutant emissions. Hydrogen fuel cell is one promising solution, but the nature of the gas is such that the in-vehicle conversion of other fuels into hydrogen is necessary. In this paper, autothermal reforming, for Diesel on-board conversion into a hydrogen-rich gas suitable for PEM fuel cells, has investigated using the simulation tool Aspen Plus. A steady-state model has been developed to analyze the fuel processor and the overall system performance. The components of the fuel processor are: the fuel reforming reactor, two water gas shift reactors, a preferential oxidation reactor and H{sub 2} separation unit. The influence of various operating parameters such as oxygen to carbon ratio, steam to carbon ratio, and temperature on the process components has been analyzed in-depth and results are presented.

  18. Bootstrapping a Sustainable North American PEM Fuel Cell Industry: Could a Federal Acquisition Program Make a Difference?

    SciTech Connect (OSTI)

    Greene, David L; Duleep, Dr. K. G.

    2008-10-01

    The North American Proton Exchange Membrane (PEM) fuel cell industry may be at a critical juncture. A large-scale market for automotive fuel cells appears to be several years away and in any case will require a long-term, coordinated commitment by government and industry to insure the co-evolution of hydrogen infrastructure and fuel cell vehicles (Greene et al., 2008). The market for non-automotive PEM fuel cells, on the other hand, may be much closer to commercial viability (Stone, 2006). Cost targets are less demanding and manufacturers appear to be close, perhaps within a factor of two, of meeting them. Hydrogen supply is a significant obstacle to market acceptance but may not be as great a barrier as it is for hydrogen-powered vehicles due to the smaller quantities of hydrogen required. PEM fuel cells appear to be potentially competitive in two markets: (1) Backup power (BuP) supply, and (2) electrically-powered MHE (Mahadevan et al., 2007a, 2007b). There are several Original Equipment Manufacturers (OEMs) of PEM fuel cell systems for these applications but production levels have been quite low (on the order of 100-200 per year) and cumulative production experience is also limited (on the order of 1,000 units to date). As a consequence, costs remain above target levels and PEM fuel cell OEMs are not yet competitive in these markets. If cost targets can be reached and acceptable solutions to hydrogen supply found, a sustainable North American PEM fuel cell industry could be established. If not, the industry and its North American supply chain could disappear within a year or two. The Hydrogen Fuel Cell and Infrastructure Technologies (HFCIT) program of the U.S. Department of Energy (DOE) requested a rapid assessment of the potential for a government acquisition program to bootstrap the market for non-automotive PEM fuel cells by driving down costs via economies of scale and learning-by-doing. The six week study included in-depth interviews of three manufacturers

  19. "Stationary Flowing Liquid Lithium System For Pumping Out Atomic...

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

    Lithium System For Pumping Out Atomic Hydrogen Isotopes and Ions" Leonid E. Zakharov and Charles Gentile The system is comprised of a stationary closed loop for liquid lithium flow ...

  20. Stationary/Distributed Generation Projects- Non-DOE Projects

    Broader source: Energy.gov [DOE]

    In addition to the stationary/distributed generation technology validation projects sponsored by DOE, universities, along with state and local government entities across the U.S., are partnering...

  1. Geophysics-based method of locating a stationary earth object

    DOE Patents [OSTI]

    Daily, Michael R.; Rohde, Steven B.; Novak, James L.

    2008-05-20

    A geophysics-based method for determining the position of a stationary earth object uses the periodic changes in the gravity vector of the earth caused by the sun- and moon-orbits. Because the local gravity field is highly irregular over a global scale, a model of local tidal accelerations can be compared to actual accelerometer measurements to determine the latitude and longitude of the stationary object.

  2. Intergovernmental Stationary Fuel Cell System Demonstration | Department of

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

    Energy Intergovernmental Stationary Fuel Cell System Demonstration Intergovernmental Stationary Fuel Cell System Demonstration Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 7b_plugpwr.pdf (23.35 KB) More Documents & Publications State of the States: Fuel Cells in America 2011 State of the States: Fuel Cells in America 2012 State of the States: Fuel Cells in America 2010

  3. Bootstrapping a Sustainable North American PEM Fuel Cell Industry: Could a Federal Acquisition Program Make a Difference?

    Broader source: Energy.gov [DOE]

    The North American Proton Exchange Membrane (PEM) fuel cell industry may be at a critical juncture. A large-scale market for automotive fuel cells appears to be several years away and in any case will require a long-term, coordinated commitment by government and industry to insure the co-evolution of hydrogen infrastructure and fuel cell vehicles (Greene et al., 2008). The market for non-automotive PEM fuel cells, on the other hand, may be much closer to commercial viability (Stone, 2006). Cost targets are less demanding and manufacturers appear to be close, perhaps within a factor of two, of meeting them. Hydrogen supply is a significant obstacle to market acceptance but may not be as great a barrier as it is for hydrogen-powered vehicles due to the smaller quantities of hydrogen required.

  4. THE EFFECT OF LOW CONCENTRATIONS OF TETRACHLOROETHYLENE ON THE PERFORMANCE OF PEM FUEL CELLS

    SciTech Connect (OSTI)

    COLON-MERCHADO, H.; MARTINEZ-RODRIGUEZ, M.; FOX, E.; RHODES, W.; MCWHORTER, C.; GREENWAY, S.

    2011-04-18

    Polymer electrolyte membrane (PEM) fuel cells use components that are susceptible to contaminants in the fuel stream. To ensure fuel quality, standards are being set to regulate the amount of impurities allowable in fuel. The present study investigates the effect of chlorinated impurities on fuel cell systems using tetrachloroethylene (PCE) as a model compound for cleaning and degreasing agents. Concentrations between 0.05 parts per million (ppm) and 30 ppm were studied. We show how PCE causes rapid drop in cell performances for all concentrations including 0.05 ppm. At concentrations of 1 and 0.05 ppm, PCE poisoned the cell at a rate dependent on the dosage of the contaminant delivered to the cell. PCE appears to affect the cell when the cell potential was over potentials higher than approximately 0.2 V. No effects were observed at voltages around or below 0.2 V and the cells could be recovered from previous poisoning performed at higher potentials. Recoveries at those low voltages could be induced by changing the operating voltage or by purging the system. Poisoning did not appear to affect the membrane conductivity. Measurements with long-path length IR results suggested catalytic decomposition of the PCE by hydrogen over the anode catalyst.

  5. Analysis of on-board fuel processing designs for PEM fuel cell vehicles

    SciTech Connect (OSTI)

    Kartha, S.; Fischer, S.; Kreutz, T.

    1996-12-31

    As a liquid fuel with weight and volume energy densities comparable to those of gasoline, methanol is an attractive energy carrier for mobile power systems. It is available without contaminants such as sulfur, and can be easily reformed at relatively low temperatures with inexpensive catalysts. This study is concerned with comparing the net efficiencies of PEM fuel cell vehicles fueled with methanol and hydrogen, using fuel cell system models developed using ASPEN chemical process simulation software. For both the methanol and hydrogen systems, base case designs are developed and several variations are considered that differ with respect to the degree of system integration for recovery of heat and compressive work. The methanol systems are based on steam reforming with the water-gas shift reaction and preferential oxidation, and the hydrogen systems are based on compressed hydrogen. This analysis is an exercise in optimizing the system design for each fuel, which ultimately entails balancing system efficiency against a host of other considerations, including system complexity, performance, cost, reliability, weight and volume.

  6. Ice formation in PEM fuel cells operated isothermally at sub-freezing temperatures

    SciTech Connect (OSTI)

    Mukundan, Rangachary; Luhan, Roger W; Davey, John R; Spendelow, Jacob S; Borup, Rodney L; Hussey, Daniel S; Jacobson, David L; Arif, Muhammad

    2009-01-01

    The effect of MEA and GDL structure and composition on the performance of single-PEM fuel cells operated isothermally at subfreezing temperatures is presented. The cell performance and durability are not only dependent on the MEA/GDL materials used but also on their interfaces. When a cell is operated isothermally at sub-freezing temperatures in constant current mode, the water formation due to the current density initially hydrates the membrane/ionomer and then forms ice in the catalyst layer/GDL. An increase in high frequency resistance was also observed in certain MEAs where there is a possibility of ice formation between the catalyst layer and GDL leading to a loss in contact area. The total water/ice holding capacity for any MEA was lower at lower temperatures and higher current densities. The durability of MEAs subjected to multiple isothermal starts was better for LANL prepared MEAs as compared to commercial MEAs, and cloth GDLs when compared to paper GDLs. The ice formation was monitored using high-resolution neutron radiography and was found to be concentrated near the cathode catalyst layer. However, there was significant ice formation in the GDLs especially at the higher temperature ({approx} -10 C) and lower current density (0.02 A/cm{sup 2}) operations. These results are consistent with the longer-term durability observations that show more severe degradation at the lower temperatures.

  7. Final Project Report: Development of Micro-Structural Mitigation Strategies for PEM Fuel Cells: Morphological Simulations and Experimental Approaches

    SciTech Connect (OSTI)

    Wessel, Silvia; Harvey, David

    2013-06-28

    The durability of PEM fuel cells is a primary requirement for large scale commercialization of these power systems in transportation and stationary market applications that target operational lifetimes of 5,000 hours and 40,000 hours by 2015, respectively. Key degradation modes contributing to fuel cell lifetime limitations have been largely associated with the platinum-based cathode catalyst layer. Furthermore, as fuel cells are driven to low cost materials and lower catalyst loadings in order to meet the cost targets for commercialization, the catalyst durability has become even more important. While over the past few years significant progress has been made in identifying the underlying causes of fuel cell degradation and key parameters that greatly influence the degradation rates, many gaps with respect to knowledge of the driving mechanisms still exist; in particular, the acceleration of the mechanisms due to different structural compositions and under different fuel cell conditions remains an area not well understood. The focus of this project was to address catalyst durability by using a dual path approach that coupled an extensive range of experimental analysis and testing with a multi-scale modeling approach. With this, the major technical areas/issues of catalyst and catalyst layer performance and durability that were addressed are: 1. Catalyst and catalyst layer degradation mechanisms (Pt dissolution, agglomeration, Pt loss, e.g. Pt in the membrane, carbon oxidation and/or corrosion). a. Driving force for the different degradation mechanisms. b. Relationships between MEA performance, catalyst and catalyst layer degradation and operational conditions, catalyst layer composition, and structure. 2. Materials properties a. Changes in catalyst, catalyst layer, and MEA materials properties due to degradation. 3. Catalyst performance a. Relationships between catalyst structural changes and performance. b. Stability of the three-phase boundary and its effect on

  8. Development and testing of a PEM SO2-depolarized electrolyzer and an operating method that prevents sulfur accumulation

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

    Steimke, John L.; Steeper, Timothy J.; Colon-Mercado, Hector R.; Gorensek, Maximilian B.

    2015-09-02

    The hybrid sulfur (HyS) cycle is being developed as a technology to generate hydrogen by splitting water, using heat and electrical power from a nuclear or solar power plant. A key component is the SO2-depolarized electrolysis (SDE) cell, which reacts SO2 and water to form hydrogen and sulfuric acid. SDE could also be used in once-through operation to consume SO2 and generate hydrogen and sulfuric acid for sale. A proton exchange membrane (PEM) SDE cell based on a PEM fuel cell design was fabricated and tested. Measured cell potential as a function of anolyte pressure and flow rate, sulfuric acidmore » concentration, and cell temperature are presented for this cell. Sulfur accumulation was observed inside the cell, which could have been a serious impediment to further development. A method to prevent sulfur formation was subsequently developed. As a result, this was made possible by a testing facility that allowed unattended operation for extended periods.« less

  9. Stationary Fuel Cell Systems Analysis Project: Partnership Opportunities; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-06-01

    This fact sheet describes opportunities for interested stationary fuel cell developers and end users to participate in an objective and credible analysis of stationary fuel cell systems to benchmark the current state of the technology and support industry growth.

  10. Heat-transfer characteristics of flowing and stationary particle-bed-type fusion-reactor blankets

    SciTech Connect (OSTI)

    Nietert, R.E.

    1983-02-01

    The following five appendices are included: (1) physical properties of materials, (2) thermal entrance length Nusselt number variations, (3) stationary particle bed temperature variations, (4) falling bed experimental data and calculations, and (5) stationary bed experimental data and calculations. (MOW)

  11. Stationary power applications for polymer electrolyte fuel cells

    SciTech Connect (OSTI)

    Wilson, M.S.; Zawodzinski, C.; Gottesfeld, S.; Landgrebe, A.R.

    1996-02-01

    The benefits provided by Polymer Electrolyte Fuel Cells (PEFC) for power generation (e.g. low operating temperatures, and non-corrosive and stable electrolyte), as well as advances in recent years in lowering their cost and improving anode poisoning tolerance, are stimulating interest in the system for stationary power applications. A significant market potentially exists for PEFCs in certain stationary applications where PEFC technology is a more attractive alternative to other fuel cell technologies. A difficulty with the PEFC is its operation on reformed fuels containing CO, which poisons the anode catalyst. This difficulty can be alleviated in several ways. One possible approach is described whereby the product reformate is purified using a relatively low cost, high-throughput hydrogen permselective separator. Preliminary experiments demonstrate the utility of the concept.

  12. NREL: Hydrogen and Fuel Cells Research - Stationary Fuel Cell Units Greater

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

    Than 100 kW Achieve 2015 Target for Electrical Efficiency Stationary Fuel Cell Units Greater Than 100 kW Achieve 2015 Target for Electrical Efficiency Project Technology Validation: Stationary Fuel Cell Evaluation Contact Genevieve Saur Related Publications Stationary Fuel Cell System Composite Data Products Stationary Fuel Cell Systems Analysis Project: Partnership Opportunities In a newly released composite data product (CDP), NREL's National Fuel Cell Technology Evaluation Center (NFCTEC)

  13. Webinar: Procuring Fuel Cells for Stationary Power: A Guide for Federal

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

    Decision Makers | Department of Energy Procuring Fuel Cells for Stationary Power: A Guide for Federal Decision Makers Webinar: Procuring Fuel Cells for Stationary Power: A Guide for Federal Decision Makers Download presentation slides from the May 8, 2012, Fuel Cell Technologies Program webinar, "Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers." Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers Webinar

  14. Stationary and Portable Fuel Cell Systems Codes and Standards Citations (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-05-01

    This document lists codes and standards typically used for U.S. stationary and portable fuel cell systems.

  15. DOE Technical Targets for Fuel Cell Systems for Stationary (Combined Heat

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

    and Power) Applications | Department of Energy Stationary (Combined Heat and Power) Applications DOE Technical Targets for Fuel Cell Systems for Stationary (Combined Heat and Power) Applications These tables list the U.S. Department of Energy (DOE) technical targets for stationary fuel cell applications. These targets have been developed with input from developers of stationary fuel cell power systems. More information about targets can be found in the Fuel Cells section of the Fuel Cell

  16. Transportation and Stationary Power Integration Workshop: A California Perspective

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

    NERL Workshop October 27th 1 of 18 Mike Tollstrup Transportation and Stationary Power Integration Workshop A California Perspective Monday, October 27th, 2008 Mike Tollstrup California Air Resources Board DOE/NERL Workshop October 27th 2 of 18 Mike Tollstrup Fuel Cell Sites in California Tulare * Wastewater treatment * Hydrogen refueling * College campuses * Manufacturing * Hotels * Offices * Military * CHP DOE/NERL Workshop October 27th 3 of 18 Mike Tollstrup Horizontal lines indicate 2007 CARB

  17. Freeze drying for gas chromatography stationary phase deposition

    DOE Patents [OSTI]

    Sylwester, Alan P.

    2007-01-02

    The present disclosure relates to methods for deposition of gas chromatography (GC) stationary phases into chromatography columns, for example gas chromatography columns. A chromatographic medium is dissolved or suspended in a solvent to form a composition. The composition may be inserted into a chromatographic column. Alternatively, portions of the chromatographic column may be exposed or filled with the composition. The composition is permitted to solidify, and at least a portion of the solvent is removed by vacuum sublimation.

  18. Alpha Channeling in Rotating Plasma with Stationary Waves

    SciTech Connect (OSTI)

    A. Fetterman and N.J. Fisch

    2010-02-15

    An extension of the alpha channeling effect to supersonically rotating mirrors shows that the rotation itself can be driven using alpha particle energy. Alpha channeling uses radiofrequency waves to remove alpha particles collisionlessly at low energy. We show that stationary magnetic fields with high n? can be used for this purpose, and simulations show that a large fraction of the alpha energy can be converted to rotation energy.

  19. Transportation and Stationary Power Integration with Hydrogen and Fuel Cell

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

    Technology in Connecticut | Department of Energy with Hydrogen and Fuel Cell Technology in Connecticut Transportation and Stationary Power Integration with Hydrogen and Fuel Cell Technology in Connecticut Overview of strengths, weaknesses, and barriers, deployment phases, military sites, environmental value, and potential partnerships tspi_rinebold.pdf (2.22 MB) More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

  20. Engineered Nano-scale Ceramic Supports for PEM Fuel Cells. Tech Team Meeting Presentaion

    SciTech Connect (OSTI)

    Brosha, Eric L.; Elbaz Alon, Lior; Henson, Neil J.; Rockward, Tommy; Roy, Aaron; Serov, Alexey; Ward, Timothy

    2012-08-13

    Catalyst support durability is currently a technical barrier for commercialization of polymer electrolyte membrane (PEM) fuel cells, especially for transportation applications. Degradation and corrosion of the conventional carbon supports leads to losses in active catalyst surface area and, consequently, reduced performance. As a result, the goal of this work is to develop support materials that interact strongly with Pt, yet sustain bulk-like catalytic activities with very highly dispersed particles. Ceramic materials that are prepared using conventional solid-state methods have large grain sizes and low surface areas that can only be minimally ameliorated through grinding and ball milling. Other synthesis routes to produce ceramic materials must be investigated and utilized in order to obtain desired surface areas. In this work, several different synthesis methods are being utilized to prepare electronically conductive ceramic boride, nitride, and oxide materials with high surface areas and have the potential for use as PEMFC catalyst supports. Polymer-assisted deposition (PAD) and aerosol-through plasma (A-T-P) torch are among several methods used to obtain ceramic materials with surface areas that are equal to, or exceed Vulcan XC-72R supports. Cubic Mo-based ceramic phases have been prepared with average XRD-determined crystallite sizes as low as 1.6 nm (from full profile, XRD fitting) and a BET surface area exceeding 200 m{sup 2}/g. Additionally, black, sub-stoichiometric TiO{sub 2-x}, have been prepared with an average crystallite size in the 4 nm range and surface areas exceeding 250 m{sup 2}/gr. Pt disposition using an incipient wetness approach produced materials with activity for hydrogen redox reactions and ORR. Cyclic voltammetry data will be shown for a variety of potential Pt/ceramic catalysts. Initial experiments indicate enhanced Pt metal-support interactions as well. Plane wave periodic density functional calculations (VASP) are being used to

  1. Fuel Quality Issues in Stationary Fuel Cell Systems

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

    Quality Issues in Stationary Fuel Cell Systems ANL/CSE/FCT/FQ-2011-11 Chemical Sciences and Engineering Division Availability of This Report This report is available, at no cost, at http://www.osti.gov/bridge. It is also available on paper to the U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Offce of Scientifc and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone (865) 576-8401 fax (865) 576-5728 reports@adonis.osti.gov

  2. Longer life for glyco-based stationary engine coolants

    SciTech Connect (OSTI)

    Hohlfeld, R.

    1996-07-01

    Large, stationary diesel engines used to compress natural gas that is to be transported down pipelines generate a great deal of heat. Unless this heat is dissipated efficiently, it will eventually cause an expensive breakdown. Whether the coolant uses ethylene glycol or propylene glycol, the two major causes of glycol degradation are heat and oxidation. The paper discusses inhibitors that enhance coolant service life and presents a comprehensive list of do`s and don`ts for users to gain a 20-year coolant life.

  3. Superconducting PM undiffused machines with stationary superconducting coils

    DOE Patents [OSTI]

    Hsu, John S.; Schwenterly, S. William

    2004-03-02

    A superconducting PM machine has a stator, a rotor and a stationary excitation source without the need of a ferromagnetic frame which is cryogenically cooled for operation in the superconducting state. PM material is placed between poles on the rotor to prevent leakage or diffusion of secondary flux before reaching the main air gap, or to divert PM flux where it is desired to weaken flux in the main air gap. The PM material provides hop-along capability for the machine in the event of a fault condition.

  4. Table III: Technical Targets for Catalyst Coated Membranes (CCMs): Stationary

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

    III: Technical Targets for Catalyst Coated Membranes (CCMs): Stationary All targets must be achieved simultaneously Characteristics Units Calendar year 2002 status a 2005 2010 Membrane Areal Resistance in cell, operating temperature Ω-cm 2 0.1 0.1 0.1 Cost b $/kW --TBD 250 100 Operating Temperature o C 160 120-160 c 140-180 Durability Hours 5000 >15000 >40000 Survivability o C -20 -30 -40 Catalyst loading mg/cm 2 2 1 0.25 Performance (0.7 V) --EOL A/cm 2 0.15 0.25 0.35 G/kW for loading

  5. Stationary bubbles and their tunneling channels toward trivial geometry

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

    Chen, Pisin; Domènech, Guillem; Sasaki, Misao; Yeom, Dong-han

    2016-04-07

    In the path integral approach, one has to sum over all histories that start from the same initial condition in order to obtain the final condition as a superposition of histories. Applying this into black hole dynamics, we consider stable and unstable stationary bubbles as a reasonable and regular initial condition. We find examples where the bubble can either form a black hole or tunnel toward a trivial geometry, i.e., with no singularity nor event horizon. We investigate the dynamics and tunneling channels of true vacuum bubbles for various tensions. In particular, in line with the idea of superposition ofmore » geometries, we build a classically stable stationary thin-shell solution in a Minkowski background where its fate is probabilistically given by non-perturbative effects. Since there exists a tunneling channel toward a trivial geometry in the entire path integral, the entire information is encoded in the wave function. This demonstrates that the unitarity is preserved and there is no loss of information when viewed from the entire wave function of the universe, whereas a semi-classical observer, who can see only a definitive geometry, would find an effective loss of information. Ultimately, this may provide a resolution to the information loss dilemma.« less

  6. Fuel quality issues in stationary fuel cell systems.

    SciTech Connect (OSTI)

    Papadias, D.; Ahmed, S.; Kumar, R.

    2012-02-07

    Fuel cell systems are being deployed in stationary applications for the generation of electricity, heat, and hydrogen. These systems use a variety of fuel cell types, ranging from the low temperature polymer electrolyte fuel cell (PEFC) to the high temperature solid oxide fuel cell (SOFC). Depending on the application and location, these systems are being designed to operate on reformate or syngas produced from various fuels that include natural gas, biogas, coal gas, etc. All of these fuels contain species that can potentially damage the fuel cell anode or other unit operations and processes that precede the fuel cell stack. These detrimental effects include loss in performance or durability, and attenuating these effects requires additional components to reduce the impurity concentrations to tolerable levels, if not eliminate the impurity entirely. These impurity management components increase the complexity of the fuel cell system, and they add to the system's capital and operating costs (such as regeneration, replacement and disposal of spent material and maintenance). This project reviewed the public domain information available on the impurities encountered in stationary fuel cell systems, and the effects of the impurities on the fuel cells. A database has been set up that classifies the impurities, especially in renewable fuels, such as landfill gas and anaerobic digester gas. It documents the known deleterious effects on fuel cells, and the maximum allowable concentrations of select impurities suggested by manufacturers and researchers. The literature review helped to identify the impurity removal strategies that are available, and their effectiveness, capacity, and cost. A generic model of a stationary fuel-cell based power plant operating on digester and landfill gas has been developed; it includes a gas processing unit, followed by a fuel cell system. The model includes the key impurity removal steps to enable predictions of impurity breakthrough

  7. Overview of Hydrogen and Fuel Cell Activities: 2011 IPHE Stationary Fuel

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

    Cell Workshop | Department of Energy 1 IPHE Stationary Fuel Cell Workshop Overview of Hydrogen and Fuel Cell Activities: 2011 IPHE Stationary Fuel Cell Workshop Presentation by Rick Farmer at the IPHE Stationary Fuel Cell Workshop on March 1, 2011. Overview of Hydrogen and Fuel Cell Activities (1.4 MB) More Documents & Publications Fuel Cell Technologies Program - DOD-DOE Workshop: Shipboard APUs Overview DOE Fuel Cell Technologies Office: 2013 Fuel Cell Seminar and Energy Exposi

  8. Webinar: Procuring Fuel Cells for Stationary Power: A Guide for Federal

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

    Facility Decision Makers | Department of Energy Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers Webinar: Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers Below is the text version of the webinar titled "Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers," originally presented on May 8, 2012. In addition to this text version of the audio, you can access the

  9. Balance of Plant Needs and Integration of Stack Components for Stationary

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

    Power and CHP Applications | Department of Energy Balance of Plant Needs and Integration of Stack Components for Stationary Power and CHP Applications Balance of Plant Needs and Integration of Stack Components for Stationary Power and CHP Applications Presentation on Balance of Plant Needs and Integration of Stack Components for Stationary Power and CHP Applications for Fuel Cell Pre-solicitation Workshop March 10, 2010 fuelcell_pre-solicitation_wkshop_mar10_ainscough.pdf (525.4 KB) More

  10. 1-10 kW Stationary Combined Heat and Power Systems Status and Technical

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

    Potential: Independent Review | Department of Energy -10 kW Stationary Combined Heat and Power Systems Status and Technical Potential: Independent Review 1-10 kW Stationary Combined Heat and Power Systems Status and Technical Potential: Independent Review This independent review examines the status and technical potential of 1-10 kW stationary combined heat and power fuel cell systems and analyzes the achievability of the DOE cost, efficiency, and durability targets for 2012, 2015, and 2020.