Multi-scale analysis of plate-shaped solid oxide fuel cell based on numerical plate testing

Abstract

In this study, the authors incorporate the electrochemical analysis in the numerical plate testing (NPT) for multistage analysis by considering thermal strain, reduction strain and creep deformation of solid oxide fuel cell (SOFC). First, we perform an electrochemical analysis for an unit microstructure of flat plane SOFC classified into a composite plate composed of in-plane periodic structures. Based on the obtained distributions of oxygen potential and temperature from the electrochemical analysis, reduction and thermal strains are calculated. Considering these strains, we conduct a NPT for the unit microstructure by a commercial FEM software. Finally, we compare the NPT results with and without consideration of data from electrochemical analysis.