燃料电池开槽流场传热传质过程三维仿真分析  

Three-dimensional Simulation Analysis of Heat and Mass Transfer Process in Flow Field of Fuel Cell

作　　者：白鸿玮 张国宾 屈治国[1] 张剑飞[1] BAI Hongwei;ZHANG Guobin;QU Zhiguo;ZHANG Jianfei(Key Laboratory of Thermo-Fluid Science and Engineering of MOE,School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China)

机构地区：[1]西安交通大学热流科学与工程教育部重点实验室,能源与动力工程学院,西安710049

出　　处：《工程热物理学报》2023年第4期1082-1087,共6页Journal of Engineering Thermophysics

基　　金：陕西省重点研发计划(No.2021LLRH-04-04-01);国家自然科学基金项目(No.52076170)。

摘　　要：质子交换膜燃料电池广泛应用于电动汽车领域,流场设计对于电池性能具有重要影响,本文通过三维多相多物理场数值模拟,研究了三种不同流场对电池内部气体分布、温度分布以及除水性能等的影响。结果表明,开槽的流场设计能够显著强化肋下的横向传质,相比平行流场,其气体、温度、电流密度、液态水分布的均匀性有明显改善,性能有所提升。Proton exchange membrane fuel cells are widely used in the field of electric vehicles,and the flow field design has an important impact on the performance of the battery.In this paper,the effects of three different fow fields on the gas distribution,temperature distribution and water removal performance of the battery were studied through three-dimensional multiphase and multiphysical field numerical simulation.The results show that the slot fow field design can significantly enhance the lateral mass transfer under the ribs.Compared with the parallel flow field,the uniformity of the distribution of gas,temperature,current density and liquid water is significantly improved,and the performance is improved.

关 键 词：质子交换膜燃料电池 流场板 开槽流场 数值模拟 

分 类 号：TM911.4[电气工程—电力电子与电力传动]