Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 661-680 of 854
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Performance of Internal and External Reforming Molten Carbonate Fuel Cell Systems
(The American Society of Mechanical Engineers (ASME), 2007)Molten carbonate fuel cells (MCFC) are a promising alternative power source for distributed or residential power plants. Therefore, thermodynamic models are built in an Aspen customer modeler for ... -
Novel Nanostructured Media for Gas Storage and Transport: Clathrate Hydrates of Methane and Hydrogen
(The American Society of Mechanical Engineers (ASME), 2007)In the last years the development of fuel cell (FC) technology has highlighted the correlated problem of storage and transportation of gaseous fuels, particularly hydrogen and methane. In fact, ... -
Strain Accumulation in Polymer Electrolyte Membrane and Membrane Electrode Assembly Materials During a Single Hydration/Dehydration Cycle
(The American Society of Mechanical Engineers (ASME), 2007)A digital image correlation technique was used to measure drying-induced strains in perfluorosulfonic acid (PFSA) membrane and membrane electrode assembly (MEA) materials which are key components ... -
Quality Assurance and Solid Oxide Fuel Cell Testing at Forschungszentrum Juelich
(The American Society of Mechanical Engineers (ASME), 2007)Standardization of fuel cell testing to allow comparisons presents one of the major challenges to the fuel cell community. This becomes more critical when there is a need to take commercial ... -
Characterization of Fuel Cells and Fuel Cell Systems Using Three-Dimensional X-Ray Tomography
(The American Society of Mechanical Engineers (ASME), 2007)Three dimensional (3D) computer aided X-ray tomography (CT) has proven to be an extremely useful tool in developing our own as well as in examining commercially available solid oxide fuel ... -
Novel Deposition of Pt∕C Nanocatalysts and Nafion® Solution on Carbon-Based Electrodes via Electrophoretic Process for PEM Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2007)Nanosized platinum particles supported on carbon black carriers (Pt∕C) are popular for use in fabrication of proton exchange membrane fuel cells (PEMFCs). Here, an electrophoretic deposition (EPD) ... -
How Far Are Direct Alcohol Fuel Cells From Our Energy Future?
(The American Society of Mechanical Engineers (ASME), 2007)Direct alcohol fuel cells (DAFCs) have been attracting more and more attention and interest during the last decade due to their simplicity, the easy handle and the high power density of the ... -
Preparation of Highly Stable Ion Exchange Membranes by Radiation-Induced Graft Copolymerization of Styrene and Bis(vinyl phenyl)ethane Into Crosslinked Polytetrafluoroethylene Films
(The American Society of Mechanical Engineers (ASME), 2007)We prepared novel ion exchange membranes for possible use in polymer electrolyte fuel cells (PEFCs) by the radiation-induced graft copolymerization of styrene and new crosslinker bis(vinyl ... -
Review of Materials and Characterization Methods for Polymer Electrolyte Fuel Cell Flow-Field Plates
(The American Society of Mechanical Engineers (ASME), 2007)The role of the flow-field plate is of major importance in determining the performance of a polymer electrolyte fuel cell. The flow-field plate constitutes the largest volumetric and gravimetric ... -
Processing of Raney-Nickel Catalysts for Alkaline Fuel Cell Applications
(The American Society of Mechanical Engineers (ASME), 2007)Platinum and other platinum group metals, either as singles or in combinations, have been preferred for use in low temperature fuel cells, mainly alkaline fuel cells (AFCs), polymer membrane ... -
A Comparative Study Between Resistance Measurements in Model Experiments and Solid Oxide Fuel Cell Stack Performance Tests
(The American Society of Mechanical Engineers (ASME), 2007)Several combinations of glass-ceramic and steel compositions with excellent chemical and physical properties have been tested in the past in solid oxide fuel cell (SOFC) stacks, but there have ... -
Conjugate Mass Transfer in Gas Channels and Diffusion Layers of Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2007)Prediction of mass transfer effects is a key element in fuel cell design. In this paper, the results of a generalized analysis appropriate to a wide range of designs and flow conditions are ... -
A Temperature-Programmed-Reduction Study on La1−xSrxCrO3 and Surface-Ruthenium-Modified La1−xSrxCrO3
(The American Society of Mechanical Engineers (ASME), 2007)A series of La1−xSrxCrO3(0⩽x⩽0.3) composite oxides were prepared by a modified citric method. These perovskite oxides were further modified with Ru through impregnation. X-ray diffraction, X-ray ... -
Effects of Electrical Feedbacks on Planar Solid Oxide Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2007)Planar-solid-oxide-fuel-cell stacks (PSOFCSs), in PSOFC-based power-conditioning systems (PCSs), are subjected to electrical feedbacks due to the switching power electronics and the application loads. ... -
Aqueous Deposition of Metals on Multiwalled Carbon Nanotubes to be Used as Electrocatalyst for Polymer Exchange Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2007)The polymer exchange membrane fuel cell (PEMFC) is considered the new power source technology for portable applications. Pt and Pt–alloy nanoparticles supported on carbon black have been used ... -
Optimum Battery Size for Fuel Cell Hybrid Electric Vehicle— Part I
(The American Society of Mechanical Engineers (ASME), 2007)This study explores different hybridization levels of a midsized vehicle powered by a polymer electrolyte membrane fuel cell stack. The energy buffer considered is a lead-acid-type battery. The ... -
Energy Savings for Silent Camp™ Hybrid Technologies
(The American Society of Mechanical Engineers (ASME), 2007)In military base camp operations, the standard method of power generation is via the use of diesel generators. Unfortunately, these generators are often noisy and inefficient. Base camps could ... -
Optimum Battery Size for Fuel Cell Hybrid Electric Vehicle With Transient Loading Consideration—Part II
(The American Society of Mechanical Engineers (ASME), 2007)This study presents a simplified model of a midsized vehicle powered by a polymer electrolyte membrane fuel cell stack together with a lead-acid battery as an energy buffer. The model is used ... -
SOFCRoll Development at St. Andrews Fuel Cells Ltd.
(The American Society of Mechanical Engineers (ASME), 2007)St. Andrews Fuel Cells Ltd. is a spin-off company (formed in February 2005) from the University of St. Andrews. The company’s focus is on the development of the SOFCRoll fuel cell. The ... -
Modeling of Convective Heat and Mass Transfer Characteristics of Anode-Supported Planar Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2007)Convective heat and mass transfer in a planar, trilayer, solid oxide fuel cell (SOFC) module is considered for a uniform supply of volatile species (80%H2+20%H2O vapor) and oxidant (20%O2+80%N2) ...