A multiscale model of transport phenomena in a single planar solid oxide fuel cell

摘要

In this work, the results from the numerical simulation of a single planar solid oxide fuel cell (SOFC) are presented. The mathematical model of a SOFC unit is formulated using a set of partial differential equations and the electrochemical kinetics is modeled with the Butler-Volmer equations. The governing equations take into account the microstructure of the cell electrodes derived using focused ion beam and scanning electron microscope (FIB-SEM), the state-of-the-art technique in fuel cell science. The results show the impact of the microstructure and the working conditions on the cell's current-voltage characteristics and temperature field.