Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 521-540 of 854
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Basic Electrochemical Thermodynamic Studies of Fuel Cells and Fuel Cell Hybrids
(The American Society of Mechanical Engineers (ASME), 2009)It is important to understand the maximum possible thermal efficiency a device is capable of obtaining and then what of this it actually achieves. In this paper it is shown that the thermal ... -
Advances in Research, Development, and Testing of Single Cells at Forschungszentrum Jülich
(The American Society of Mechanical Engineers (ASME), 2009)This paper presents an overview of the main advances in solid oxide fuel cells (SOFCs) research and development (R&D), measurement standardization, and quality assurance in SOFC testing at ... -
Basic Electrochemical Thermodynamic Studies of Fuel Cells Using MALT2
(The American Society of Mechanical Engineers (ASME), 2009)There are at least four basic fuel cell thermodynamic features: maximum intrinsic thermal efficiency (electrical efficiency), reversible potential, and two new ones—intrinsic cooling requirement and ... -
Adjoint-Based Sensitivity Analysis and Error Correction Methods Applied to Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2009)Sensitivity analysis and design optimization of solid oxide fuel cells are presented. Multispecies diffusion, low speed convection, and chemical kinetics are included in a two-dimensional numerical ... -
Spatially Resolved Measuring Technique for Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2009)In order to optimize solid oxide fuel cells for operation in highly efficient systems, a new measuring system with segmented cells has been developed, which allows us to determine local effects ... -
Fuel Cell Development for NASA’s Human Exploration Program: Benchmarking With “The Hydrogen Economy”
(The American Society of Mechanical Engineers (ASME), 2009)The theoretically high efficiency and low temperature operation of hydrogen-oxygen fuel cells have motivated them to be the subject of much study since their invention in the 19th century, but ... -
Fabrication of High Precision PEMFC Membrane Electrode Assemblies by Sieve Printing Method
(The American Society of Mechanical Engineers (ASME), 2009)A sieve printing technique has been developed for the preparation of gas diffusion electrodes for proton exchange membrane fuel cells (PEMFCs). The results of the preparation of membrane electrode ... -
Hydrogen Fuel: Opportunities and Barriers
(The American Society of Mechanical Engineers (ASME), 2009)The fact that 65% of the oil use is by the transportation sector, the increasing gap between the oil supply and demand, and the need to reduce greenhouse gas emissions make the introduction ... -
Reconstruction of Electric Currents in a Fuel Cell by Magnetic Field Measurements
(The American Society of Mechanical Engineers (ASME), 2009)In this paper the tomographic problem arising in the diagnostics of a fuel cell is discussed. This is concerned with how well the electric current density j(r) be reconstructed by measuring ... -
Probabilistic-Based Design Methodology for Solid Oxide Fuel Cell Stacks
(The American Society of Mechanical Engineers (ASME), 2009)A probabilistic-based component design methodology is developed for a solid oxide fuel cell (SOFC) stack. This method takes into account the randomness in SOFC material properties as well as ... -
Viscoelastic Stress Analysis of Constrained Proton Exchange Membranes Under Humidity Cycling
(The American Society of Mechanical Engineers (ASME), 2009)Many premature failures in proton exchange membrane (PEM) fuel cells are attributed to crossover of the reactant gas from microcracks in the membranes. The formation of these microcracks is ... -
Fabrication and Demonstration of 1 kW Class SOFC Stack and System for Residential Power Generation Application
(The American Society of Mechanical Engineers (ASME), 2009)The planar type 1 kW class solid oxide fuel cell (SOFC) stack using metallic interconnects such as ferritic stainless steel has been developed for application in a residential power generation ... -
Efficiency Evaluation of Solid-Oxide Fuel Cells in Combined Cycle Operations
(The American Society of Mechanical Engineers (ASME), 2009)Solid oxide fuel cells (SOFCs) are high-temperature, high-efficiency, combustionless electrochemical energy conversion devices that have potential for combined cycle applications. This paper intends ... -
Phase Stability and Sintering Behavior of 10mol%Sc2O3–1mol%CeO2–ZrO2 Ceramics
(The American Society of Mechanical Engineers (ASME), 2009)The phase composition and sintering behavior of two commercially available 10mol%Sc2O3–1mol%CeO2–ZrO2 ceramics produced by Daiichi Kigenso Kagaku Kogyo (DKKK) and Praxair have been studied. DKKK ... -
The Current Density Distribution in a Segmented-in-Series SOFC
(The American Society of Mechanical Engineers (ASME), 2009)A common tubular solid oxide fuel cell (SOFC) design consists of segmented-in-series electrochemical cells fabricated onto the outside of a porous support tube. Predicting the performance of this ... -
Conversion of Syngas From Biomass in Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2009)Conversion of biomass in syngas by means of indirect gasification offers the option to improve the economic situation of any fuel cell system due to lower costs for feedstock and higher power ... -
Hydrocarbon Condensation Heating of Natural Gas by an Activated Carbon Desulfurizer
(The American Society of Mechanical Engineers (ASME), 2009)A phenomenon was observed after exposing a fresh bed of activated carbon to a flow of natural gas that included several percent of ethane and propane in addition to the bulk methane. For ... -
Effect of Processing Conditions on Curvature of Anode/Electrolyte SOFC Half-Cells Fabricated by Electrophoretic Deposition
(The American Society of Mechanical Engineers (ASME), 2009)Thin-electrolyte anode-supported solid oxide fuel cells (YSZ/NiO–YSZ) were fabricated for intermediate-temperature operation using electrophoretic deposition (EPD). During cosintering, the half-cells ... -
European Fuel Cell Technology and Applications, December 2007
(The American Society of Mechanical Engineers (ASME), 2009)Currently at its second edition, the European Fuel Cell Technology & Applications Conference (EFC) created a forum with the main aim of integrating several disciplines pertinent to fuel ... -
A Solar-Hydrogen Fuel-Cell Home and Research Platform
(The American Society of Mechanical Engineers (ASME), 2009)The Solar-Hydrogen Fuel-Cell Home located at the United States Merchant Marine Academy, one of America’s five federal service academies, is believed to be the first of its kind in New York ...