高温発電条件におけるPEFC単セル内連成現象の数値解析

抄録

According to the NEDO roadmap, the operation temperature over 90 ℃ and 100 ℃ is the target of PEFC systems for stationary and vehicle application respectively from 2020 to 2030. Numerical analysis using COMSOL Multi-physics was performed to clarify the mechanism and dominant factor of various coupled phenomena in a single cell of PFFC under high temperature operation condition. The relative humidity of inflow gas was also changed. As a result, it was found that the amount of produced H2O as well as current density decreased with increase in operating temperature irrespective of relative humidity condition.