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Showing 1 to 20 of 89 for “"Solid Oxide Fuel Cell"”.
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A microfabricated solid oxide fuel cell
… a significantly higher energy density, and so fuel conversion systems only need to have several percent efficiency to match and surpass the specific energy of conventional batteries. Thus, there is a strong market for successful portable fuel powered electric generators. The goal of this thesis …
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Distributed computing & solid oxide fuel cell modelling
Solid oxide fuel cells (SOFC) are a power generation technology that offers the potential to revolutionize the energy industry. Lower emissions and higher energy efficiencies than conventional thermal generation but, moreover, the ability to deliver these improvements in small generators, enables …
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Glass-ceramics for solid oxide fuel cell seals
… of glass and glass-ceramic sealants for solid oxide fuel cells (SOFC), including the critical issues for sealant design. Section two describes a quantitative approach to characterize the isothermal crystallization of glass using differential thermal analysis (DTA)<strong>, </strong>with …
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Evaluation of micro solid oxide fuel cell technology
Micro solid oxide fuel cells are one type of fuel cell being researched for use in portable electronic devices or applications requiring portable power. This emerging technology combines fuel cell technology with microfabrication technology to achieve a micro sized fuel cell on a small silicon die. …
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An Enhanced Transient Solid Oxide Fuel Cell Performance Model
In order to facilitate the application of solid oxide fuel cells, in conjunction with reduced research and development costs, there is a need for accurate performance models to aid scientists and engineers in component and process design. To this end, an enhanced transient performance model has …
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DESIGN & DEVELOPMENT OF PLANAR SOLID OXIDE FUEL CELL STACK
In the present work, planar anode-supported Solid Oxide Fuel Cell short-stacks have been designed, assembled, tested and characterized. The design of the stacks and its components (frame, housing, interconnect, compressive and bonded seals) required a great attention to the materials properties …
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Modeling of solid oxide fuel cell performance with coal gasification
… systems that integrate coal gasification with solid oxide fuel cells (SOFCs) have been championed by the Department of Energy for the past couple of decades. However, many fundamental questions about this system still need to be addressed by modeling the complex coupling between SOFC's and …
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Impedance model of a solid oxide fuel cell for degradation diagnosis
… state and alternating current behaviour of a solid-oxide fuel cell is presented to explore the possibilities to diagnose and identify degradation mechanisms in a minimally invasive way using impedance spectroscopy. This is the first report of an SOFC impedance model to incorporate degradation, …
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Inkjet deposition of segmented-in-series solid oxide fuel cell architectures
Includes bibliographical references (pages 49-54).
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Thermo-mechanical modeling of a micro-fabricated solid oxide fuel cell
A micro-fabricated solid oxide fuel cell is currently being designed by the Micro-chemical Power Team(funded under the Multidisciplinary University Research Initiative(MURI) Research Program). In the current design a plate structure vital to power generation is exposed to harsh thermal operation …
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Formulation and Process of Powder Coating for Solid Oxide Fuel Cell Interconnects
Solid oxide fuel cell (SOFC) interconnects, which are made of chromia-forming ferritic stainless steels, are used to connect individual SOFCs in series to increase the overall cell voltage output. They are usually exposed to high operating temperature (around 800oC) and both oxidative and reductive …
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High efficiency air delivery system for solid oxide fuel cell power generation
… energy system with distinct advantages is a Solid Oxide Fuel Cell (SOFC) integrated with an Internal Combustion Engine (ICE) which has the capability to operate at electric efficiencies as high as 70%. This research aimed to produce and test a high efficiency air delivery system that supports …
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Surface phase emergence and evolution of solid oxide fuel cell cathode materials
Solid Oxide Fuel Cell (SOFC) technology is an effective method of energy conversion due to its high efficiency and fuel flexibility. A limiting factor for SOFC performance is the oxygen reduction reaction (ORR) that occurs at cathode surface. This research involves the study of changes in the …
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Mechanical Characterization and Modeling of Solid Oxide Fuel Cell Electrolytes with Honeycomb Support
<p>Planar solid oxide fuel cells (SOFCs) are made up of repeating sequences of electrolytes, electrodes, seals, interconnects, and current collectors. For electro-chemical reasons it is best to keep the electrolyte as thin as possible. However, for electrolyte-supported cells, the thin electrolytes …
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Theoretical and experimental study of solid oxide fuel cell (SOFC) using impedance spectra
Solid oxide fuel cell (SOFC) is a promising alternative energy source, with its advantages of high operating efficiency, fuel flexibility, low emissions and relatively low cost. However, there are several challenges concerning the SOFC research. Little is known about the complex interfacial …
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Thermomechanical properties and performance of microfabricated solid oxide fuel cell ([mu]SOFC) structures
The mechanical properties of a ceramic electrolyte, sputtered yttria-stabilized zirconia (YSZ), in thin film (<1Clm) form were studied in order to design and fabricate thermomechanically stable microfabricated SOFCs (SOFCs) at high operation temperature. YSZ films of 70-600nm thickness were …
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Improvement of Cathode Material for Solid Oxide Fuel Cell through Surface Infiltration and Electrospinning
… (LSCF/CGO; LSCF:CGO = 1:1) cathode in solid oxide fuel cell applications. One method involved altering the surface of the LSCF/CGO by including metal oxide nanoparticles. By utilizing an infiltration approach, Co<sub>3</sub>O<sub>4</sub>, NiO and CuO nanoparticles with a particle size …
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Solid oxide fuel cell electrolytes produced via very low pressure suspension plasma spray and electrophoretic deposition
<p>Solid oxide fuel cells (SOFCs) are a promising element of comprehensive energy policies due to their direct mechanism for converting the oxidization of fuel, such as hydrogen, into electrical energy. Both very low pressure plasma spray and electrophoretic deposition allow working with high …
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