质子交换膜燃料电池分支波浪形流道电性能及传质分析  

Analysis of electrical performance and mass transfer of branched wave-shaped flow channel in PEMFC

作　　者：付鑫 胡国豪 蒋尚峰 宋光吉 韩勇 谢安 FU Xin;HU Guohao;JIANG Shangfeng;SONG Guangji;HAN Yong;XIE An(School of Mechanical and Automotive Engineering,Xiamen University of Technology,Xiamen Fujian 361000,China;Fujian Key Laboratory of Advanced Design and Manufacture for Bus and Coach,Xiamen Fujian 361000,China;Engineering Research Institute,Xiamen Kinglong United Automobile Industry Co.,Ltd.,Xiamen Fujian 361000,China;School of Materials Science and Engineering,Xiamen University of Technology,Xiamen Fujian 361000,China)

机构地区：[1]厦门理工学院机械与汽车工程学院,福建厦门361000 [2]福建省客车先进设计与制造重点实验室,福建厦门361000 [3]厦门金龙联合汽车工业有限公司工程研究院,福建厦门361000 [4]厦门理工学院材料科学与工程学院,福建厦门361000

出　　处：《电源技术》2025年第4期841-847,共7页Chinese Journal of Power Sources

基　　金：厦门市科技计划揭榜挂帅项目(3502Z20241009);厦门理工学院高层次人才引进项目(YKJ22018R)。

摘　　要：质子交换膜燃料电池因其效能高与环境友好等特点,展现出极为广泛的发展潜力。其中,流道作为燃料电池不可缺少的关键部件之一,其结构尺寸对气体运输、液态水的去除有着极为重要的影响。以传统分支直流道为基础,提出了R1、R1.5、R2三种不同半径的分支波浪形流道并建立三维多相、非等温数值模型,对比分析了4种不同流道电池的电流密度、气体传质、除水能力以及流道内压降大小。研究结果显示,相较于传统的分支直流道设计,分支波浪形流道能够有效地改善电池内部的气体传输、除水效果和输出性能,其中R1效果最好,当输出电压为0.55 V时,电流密度提升3.52%,但随着半径的减少,流道内压降会逐渐增大。Proton exchange membrane fuel cells(PEMFCs)demonstrate immense development potential due to their high efficiency and environmental friendliness.Among them,the flow channel,as one of the indispensable key components of fuel cells,has a crucial impact on gas transport and liquid water removal.Based on the traditional branched straight flow channel,this paper proposed three types of branched wavy flow channels with different radii of R1,R1.5,and R2,and established a threedimensional,multiphase,and non-isothermal numerical model to comparatively analyze the current density,gas mass transfer,water removal capability,and pressure drop within the flow channel of four different flow channel cells.The research results show that compared with the traditional branched straight flow channel design,the branched wavy flow channel can effectively improve the gas transport,water removal effect,and output performance within the cell.Among them,the R1 design has the best effect.When the output voltage is 0.55 V,the current density increases by 3.52%.However,as the radius decreases,the pressure drop within the flow channel gradually increases.

关 键 词：质子交换膜燃料电池 分支流道 数值模拟 电流密度 

分 类 号：TM911.4[电气工程—电力电子与电力传动]