A three-dimensional numerical model of a single-chamber solid oxide fuel cell

作者：Akhtar Naveed^*; Decent Stephen P; Loghin Daniel; Kendall Kevin

来源：International Journal of Hydrogen Energy, 2009, 34(20): 8645-8663.

DOI：10.1016/j.ijhydene.2009.07.113

• Single-chamber
• Solid oxide fuel cell
• Numerical model
• Fuel-oxidant mixture
• COMSOL Multiphysics

The aim of this work is to analyze the hydrodynamic/electrochemical performance of a solid oxide fuel cell operating on nitrogen diluted hydrogen/oxygen mixture. In this respect, a three-dimensional numerical model of a single-chamber solid oxide fuel cell (SC-SOFC) is developed. The model incorporates the coupled effects of fluid flow in a rectangular duct with mass transport in porous electrodes, selective electrochemical reactions (i.e. hydrogen oxidation on anode and oxygen reduction on cathode) on individual electrodes while operating on nitrogen diluted hydrogen-oxygen mixture. Results show the effect of depletion of gaseous mixture due to hydrogen and oxygen consumption along the flow direction. The model can predict hydrodynamic/electrochemical effects by varying the porosity of the gas diffusion electrodes/catalyst layers. The model is formulated in COMSOL Multiphysics 3.4, a commercial Finite Element Method (FEM) based software package.

• 出版日期2009-10