...Minh-Quy Le; Huu-Tu Nguyen; Thanh-Lam Bui We study through extensive finite element analysis the lithium diffusion in small elements of Si anodes under the forms of spheres, rods, and circular disks for Li-ion batteries. Elastoplastic properties of the amorphous silicon are assumed to be lithium...

... to mitigate the stringent material tolerances associated with such an approach. fast Fourier transforms finite element analysis solid oxide fuel cells 18 06 2007 17 07 2008 25 03 2011 25 03 2011 2011 American Society of Mechanical Engineers ...

... 2010 01 03 2011 01 03 2011 computational fluid dynamics electrochemical devices electrochemical electrodes finite element analysis solid oxide fuel cells SOFC modeling internal reforming reactions anode-supported transport processes Fuel cells are energy...

... analysis finite element analysis proton exchange membrane fuel cells proton exchange membrane fuel cell gas diffusion layer assembly pressure failure criterion prediction model Proton exchange membrane fuel cells (PEMFCs), due to the advantages of low operating temperature, fast start...

... ) 02 10 2009 16 10 2009 03 11 2010 03 11 2010 electrochemical electrodes finite element analysis finite volume methods freezing proton exchange membrane fuel cells thermal analysis thermal insulation Quick startup of a proton exchange membrane fuel cell (PEMFC...

... the manufacturability perspective because it is also another important factor that should be considered in the design stage. The key geometric dimensions of flow field section, where the rupture occurs, are extracted and parametrized. Finite element analysis model is established to analyze the formability of BPP...

... element analysis finite volume methods iterative methods two-phase flow Direct methanol fuel cells (DMFCs) promise to power future micro- and portable electronic devices owing to their high energy density and inherent simplicity of operation with methanol as the liquid fuel. Basically, a DMFC...

... of real thin metallic BPPs with some process amendment. The first investigation of this study focuses on the forming of micro-channel features with 100 μ m thickness stainless steel sheet. A finite element analysis (FEA) model is built and key process parameters (hardness of soft tools used in FFP...

... due to compression applied from the shoulders of the bipolar plates was modeled as a plain-strain problem and was determined using finite element analysis (FEA). The porosity and the permeability of the gas diffusion layer were then recalculated based on the deformation results. Next, the deformed...

... cells is the feeding of the electrode with reactants and the removal of products. proton exchange membrane fuel cell air-breathing cathode porous transports chemically reactive flow current density electrochemical electrodes finite element analysis mass transfer orifices...

... profiles in various components under different operating conditions. Next, stresses in various cell components are predicted with finite element stress analyses using the temperature profiles generated in the previous EC analyses. failure analysis finite element analysis probability solid oxide...

... in order to provide realistic temperature profiles to the finite-element analysis of the ceramic SOFC membrane-electrode assembly (MEA). The resulting simulation tool is employed for three different analyses: In the first analysis, temperature profiles provided by the thermo-electrochemical model are used...

... and a certain clamping pressure distribution, it was possible to achieve nearly uniform pressure distribution within 10 – 15 bars . The modeling results were verified with pressure-sensitive film experiments. 31 10 2006 19 10 2007 09 09 2008 finite element analysis mass transfer plates...

... was calculated and the improved design was suggested. 16 06 2006 22 01 2007 01 02 2008 finite element analysis proton exchange membrane fuel cells PEM fuel cell cylindrical structure self breathing modeling Proton exchange membrane fuel cell is a promising power source...

... transport in the membrane is described in the solid and liquid phases. Both heat conduction and heat convection are included in the model. catalysts convection drag electrochemistry electrophoresis finite element analysis finite volume methods Galerkin method heat conduction osmosis Poisson...

.... The agreement between the obtained results is very good. electric resistance finite difference methods finite element analysis partial differential equations solid oxide fuel cells fuel cell solid oxide fuel cell ohmic resistance partial differential equation finite elements method finite...

... a promising technology for the future. The main reasons are related to the efficiency of the energy conversion which is higher than that of other technologies and to the lower emissions level. PEM fuel cell dynamic modeling Femlab proton exchange membrane fuel cells finite element analysis...

...). C is the relative humidity, and C 0 is the reference value for C . Material properties used in finite element analysis k W/m/K ρ kg ∕ m 3 E MPa ν α 10 − 6 ∕ K β 10 − 6 ∕ % RH change C p...

... oxide fuel cells. Fracture strengths of 8 mol % YSZ electrolytes as 100 × 100 mm squire plates, 23 mm disks, and 17 mm disks were evaluated using plate tensile, ball-on-ring, and pressure-on-ring testing methodologies, respectively. Finite element analysis (FEA) was validated and used to calculate...

... ionic conductivity values than for large ones. 02 06 2004 25 10 2004 solid oxide fuel cells praseodymium compounds strontium compounds yttrium compounds zirconium compounds electrochemical electrodes finite element analysis electrolytes current density ionic conductivity...