Mathematical Modeling of a Solid Oxide Fuel Cell with Nearly Spherical-Shaped Electrode Particles - CaSciModOT (calcul scientifique et modelisation Orleans-Tours)
Article Dans Une Revue Journal of Sustainable Energy and Environment Année : 2010

Mathematical Modeling of a Solid Oxide Fuel Cell with Nearly Spherical-Shaped Electrode Particles

Résumé

A micro-scale model of a Solid Oxide Fuel Cell (SOFC) involving electrochemical reactions and mass transport behaviors throughout electrodes packed with nearly spherical-shaped particles was mathematically developed. The model was validated by comparing the predicted results with already available experimental results. By minimizing the cell overpotential, the model provides the optimal size of electrode particles corresponding to the specified porosities. The optimal volumetric ratio between ionic and electronic conducting particles is also proposed. The study results substantiate the fact that SOFC overpotential could be effectively decreased by increasing the operating temperature as well as operating pressure. The present study reveals the working mechanisms of SOFC at the micro-scale level, while demonstrating the use of microstructure relations to enhance the SOFC performance.

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Dates et versions

hal-00581564 , version 1 (31-03-2011)

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  • HAL Id : hal-00581564 , version 1

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Penyarat Chinda, Somchai Chanchaona, Pascal Brault, Wishsanuruk Wechsatol. Mathematical Modeling of a Solid Oxide Fuel Cell with Nearly Spherical-Shaped Electrode Particles. Journal of Sustainable Energy and Environment, 2010, 1, pp.185-196. ⟨hal-00581564⟩
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