Abstract
A numerical simulation of SOFC mixed conducting cathode polarization based on electrochemical local equilibrium is conducted. Gaseous, ionic and electronic transport equations, and the electrochemical reaction at mixed conductor surface are solved using the Lattice Boltzmann Method (LBM). In the LBM, the gas mole fraction, electronic and ionic electrochemical potential distributions are considered. Gas transport is modeled using the Dusty Gas Model (DGM). The numerical simulation is conducted under 0.01, 0.05, 0.1, 0.3 A/cm^2. This numerical method can be applied to porous cathode, and it will be a promising tool for predicting SOFC electrode polarization.
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