粗糙接触界面的蛇形流场PEMFC数值模拟  

Numerical Simulation of PEMFC with Serpentine Flow Channel on Rough Surface

作　　者：张新峰 田爱华[1] 张振东 张可涵 张福城 ZHANG Xinfeng;TIAN Aihua;ZHANG Zhendong;ZHANG Kehan;ZHANG Fucheng(School of Mechanical and Electrical Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,China)

机构地区：[1]吉林化工学院机电工程学院,吉林吉林132022

出　　处：《吉林化工学院学报》2024年第3期76-81,87,共7页Journal of Jilin Institute of Chemical Technology

摘　　要：为了研究粗糙接触界面对蛇形流场PEMFC性能的影响,利用多物理场耦合软件COMSOL建立了三维两相非等温的蛇形流场PEMFC模型,将所有组件间接触热阻耦合到三维模型中,分析了因粗糙接触界面产生的接触热阻对电池温度分布、液态水饱和度分布、性能的影响。研究结果表明,蛇形流场有接触热阻工况下,各组件之间存在明显的温度梯度,气体传输和排水能力有所提高,并表现出较无接触热阻时更为优异的性能。A three-dimensional two-phase non-isothermal serpentine flow field PEMFC model was established by COMSOL to study the effect of rough contact interface on the performance of serpentine flow field PEMFC.The influence of contact thermal resistance on polarization curve,temperature distribution and saturation distribution of liquid water was analyzed with the contact thermal resistance among all components being coupled into the three-dimensional model.The results showed that with contact thermal resistance has a significant effect on the temperature distribution of PEMFC,which improves the gas transmission and drainage capacity and provides better performance when compared with that of PEMFC without contact thermal resistance.

关 键 词：质子交换膜燃料电池 蛇形流场 接触热阻 温度分布 

分 类 号：TM911.4[电气工程—电力电子与电力传动]