摘要
为了解决蛇形流场PEMFC阴极流道液态水积聚在流道转角处和末端的问题,本文利用流体动力学软件FLUENT建立了带分流进气口的三维稳态非等温蛇形流场PEMFC模型,分析了在保持给定氧气总量不变时,不同分流进气位置及进气量对PEMFC性能的影响。研究结果表明,分流设计可以显著提升PEMFC水管理及传质能力,且分流进气位置在10%、分流进气量为70%时性能表现最优,最大功率密度较传统设计提升了21.1%。
In order to solve the problem that liquid water accumulates at the corner and end of the flow channel of the PEMFC cathode flow channel in the serpentine flow field,a three-dimensional steady-state non-isothermal serpentine flow field PEMFC model with sub-channel was established by using the fluid dynamics software FLUENT.The effects of sub-channel inlet positions and flow rates on the performance of PEMFC were analyzed when the total amount of oxygen was kept constant.The results show that the sub-channel design can significantly improve the water management and mass transfer capacity of PEMFC,and the performance is optimal when the sub-channel inlet positions is 10%and the flow rates is 70%,and the maximum power density is 21.1%higher than the traditional design.
作者
张可涵
田爱华
张福城
张新峰
张振东
ZHANG Kehan;TIAN Aihua;ZHANG Fucheng;ZHANG Xinfeng;ZHANG Zhendong(School of Mechanical and Electrical Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,China)
出处
《吉林化工学院学报》
2025年第9期31-40,共10页
Journal of Jilin Institute of Chemical Technology
