Electrochemical numerical analysis of anode supported solid oxide fuel cell
CAI Donggen1， CAI Xiongfeng1， YANG Yunzhen 1， XIA Weisheng 2
1.Hubei Key Laboratory of Advanced Technology for Automotive Components， Wuhan University of Technology， Wuhan 430070， China；2.State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology， Huazhong University of Science & Technology， Wuhan 430074， China
Abstract：According to the working principle of the anode-supported solid oxide fuel cell， the three-dimensional heat flow electrochemical model of the solid oxide fuel cell was established. The effects of fuel cell intake mode， intake rate and fuel gas composition on the temperature field， fuel efficiency and battery performance were studied. The results show that the temperature distribution is more uniform and the thermal stress is smaller when the fuel gas and air are in the same direction. Increasing the air flow rate at the cathode side will reduce the average battery temperature and the thermal stress， as well as improve the battery power density and fuel efficiency. Increasing fuel gas mole fraction will speed up the reaction rate， and boost the system temperature gradient and power density. The increase of the temperature gradient eventually leads to the augment of thermal stress.
2018, Vol. 52 
