文献类型：期刊文献

英文题名：Impacts of scale-up and flow uniformity on performance of PEM fuel cells with wave flow fields

作者：Wang, Bin[1];Pan, Weitong[1,2];Hu, Zichao[1];Zhang, Guoyu[1];Tang, Longfei[1];Chen, Xueli[1];Wang, Fuchen[1]

机构：[1]East China Univ Sci & Technol, Engn Res Ctr Resource Utilizat Carbon Containing W, Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Div Proc Equipment Sci & Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：255

外文期刊名：RENEWABLE ENERGY

收录：;EI(收录号：20252518650381);WOS:【SCI-EXPANDED(收录号:WOS:001519913200008)】；

基金：The research is supported by National Key Research and Develop-ment Program of China (2024YFB4006705) .

语种：英文

外文关键词：PEM fuel cell; Scale-up; Flow uniformity; Wave flow field; Flow pattern

摘要：As a flow field type in automotive applications, the potential of the wave flow field under the development trend of further scale-up of Proton Exchange Membrane (PEM) fuel cells has not been explored. The effects of the flow nonuniformity induced by scale-up have not been fully understood. In this work, a three-dimensional two-phase numerical model of PEM fuel cells is constructed. The Conventional Parallel Flow Field (CPFF), Sinusoidal Wave Flow Field (SWFF), Opposite Sinusoidal Wave Flow Field (OSWFF), and Staggered Opposite Sinusoidal Flow Field (SOSWFF) which is a newly proposed design are examined. The impacts of scale-up and flow uniformity are revealed by varying the length of the cell (Lcell) and Flow Uniformity Index (FUI), respectively. The transport mechanisms are elucidated. The results indicate that during scale-up, the benefits of the SOSWFF configuration become increasingly pronounced due to the substantial enhancement of the cross-rib flow. When the flow is uneven, the SOSWFF configuration consistently outperforms the other three configurations, owing to its enhanced compensatory flow. Net output performance calculations indicate a 9.46 % improvement over the CPFF configuration. These findings suggest that the SOSWFF design can be a promising option for the reaction zone in commercial-sized cells.