Abstract:The proposed research examines the feasibility of using solid oxide fuel cell (SOFC) for shipboard electric power generation by substituting new ceramic anode materials able to operate with logistic fuels. These anodes would allow the SOFC to operate witha… more
Abstract:Fuel cells promise unique siting characteristics and operating benefits which can help extend or increase the availability of electrical power in rural communities. Some of these advantages include: availability in small sizes, modularity, fuel efficiency,… more
Abstract:THE OBJECT IS THE DEVELOPMENT OF A MINIATURE HYDROGEN GENERATOR FOR SMALL PROTON EXCHANGE MEMBRANE (PEM) FUEL CELLS. ENERGY DENSITY OF THIS RECHARGEABLE POWER SOURCE IS 6 TO 8 TIMES HIGHER THAN THAT OF RECHARGEABLE BATTERIES. THE HYDROGEN GENERATOR IS THE KEY… more
Abstract:The proton exchange membrane (PEM) fuel cell is being considered as power source for a variety of applications (1-4). Gravimetric and volumetric energy density, life cycle costs, ease and safety of operation are major considerations which may favor a PEM… more
Abstract:The need for environmentally clean sources of energy for vehicular propulsion is driving a worldwide effort to develop high energy density "supercapacitors". These electronic devices are expected to work in tandem with advanced batteries or fuel cells to… more
Abstract:The U.S. Army requires lightweight man-portable power supplies delivering approximately 300 W and weighing less than 5 kG. In this context we propose to develop a polymer electrolyte membrane hydrogen fuel cell with an ultra lightweight cell stack which can… more
Abstract:Proton exchange membrane fuel cells have gained much importance for providing electric power for vehicles and other portable powerplants due to their demonstrated excellent power density and fuel economies. They are particularly suited for man-portable… more
Abstract:Presently available technology for converting logistic fuels to hydrogen for use in fuel cells is unsatisfactory in three fundamental ways. First there is the problem that the hydrogen that is produced in the initial fuel gasification step contains impurities… more
Abstract:… achieve gravimetric energy density of 2.5Wh/kg and volumetric energy density of 2500 kWh/M(3), while also having good hydrogen sorption kinetics, long cycle life, resistance to poisoning and low cost. Such a H-storage system will make the PEM and other types of fuel … more
Abstract:Proton exchange membrane (PEM) fuel cells provide significant advantages over conventional power systems. They operate at very high efficiencies (greater than 50% direct conversion and at system efficiencies which can exceed 40%), generate no emissions, are… more
Abstract:CARBONATE FUEL CELL POWER PLANTS OFFER THE MOST EFFICIENT AND ENVIRONMENTALLY SUPERIOR OPTION TO GENERATE ELECTRICITY FROM NATURAL GAS, COAL GAS, AND OTHER HYDROCARBON FUELS. TO REALIZE THE GREATEST COMMERCIAL POTENTIAL OF THESE POWER PLANTS, ADVANCES ARE… more
Abstract:This program will demonstrate the fabrication of ultra lightweight/high performance composite annular electrodes incorporating the reliability, via strength and toughness, necessary to facilitate efficient, simple assembly of low cost PEM fuel cells for… more
Abstract:Currently, a 300 watt fuel cell stack of bipolar design projects a power density of about 40 watts per kilogram of system, excluding fuel and fuel tankage. In contrast, a battery of identically performing fuel cells which uses the concept of a single sheet… more
There are several categories such as “By Agency”, “By Year”, “By State” etc.
Select a checkbox within a category to refine your search results.
Each of your selections is listed in the “Narrow Search Filters” bar. You can uncheck these selections to remove them.
Search for Either Criteria
When you select multiple values within a category, the results will include values that match either of the selections.
For example, selecting “2005” and “2007” in the “By Year” category will display results that include either 2005 OR 2007 in the results.
Narrowing the Search Results
You can refine your search results across categories. To narrow down your results, select multiple values across different categories. The results will only include values that match the selections across the categories.
For example, selecting “2005” in the “By Year” category and “NASA” in the “By Agency” category will only display the results that contain both “2005” AND “NASA” in the results.