电源技术2024，Vol.48Issue(6)：1034-1041,8.DOI:10.3969/j.issn.1002-087X.2024.06.009
基于渐缩结构的质子交换膜燃料电池流道优化
Flow channel optimization of proton exchange membrane fuel cells based on tapered structure
摘要
Abstract
The different flow channel designs affect the performance of proton exchange membrane fuel cell(PEMFC).Based on the traditional parallel flow channel,three kinds of tapered cathode flow channel structures,namely the unidirectional tapering,bidirectional tapering and periodic tapering structure,were proposed,and the three schemes were simulated by using COMSOL Multiphysics.The effect of the tapering flow channel structure on the performance,uniform distribution of gas and water,current density distribution,and pressure drop of PEMFC was studied.The results show that compared with the traditional flow channel,the tapering structure can effectively improve the perfor-mance and the distribution uniformity of gas and water.In addition,the periodic tapering structure with the tapering cross-section area ratio of 0.3 has the best performance with the highest increase of the net power density.At the voltage of 0.6 V,the maximum current density of the structure increases by 9.74%,the oxygen distribution uniformity increases by 19.00%,and the net power density in-creases by 9.80%.关键词
质子交换膜燃料电池/渐缩流道/数值模拟/分布均匀性/净功率Key words
proton exchange membrane fuel cell/tapered flow channel/numerical simulation/distri-bution uniformity/net power分类
信息技术与安全科学引用本文复制引用
铁蕾,沈俊,李昊洋,赵晓东..基于渐缩结构的质子交换膜燃料电池流道优化[J].电源技术,2024,48(6):1034-1041,8.基金项目
湖北省大学生创新创业省级项目(S202310497228) （S202310497228）
