文献类型：期刊文献

英文题名：Performance evaluation of large-area PEM fuel cells with mesh-type transition zone and staggered opposite sinusoidal wave reaction zone

作者：Wang, Bin[1,2,3];Pan, Weitong[1,2,3];Tian, Xinming[1,2,3];Tang, Longfei[1,2,3];Chen, Xueli[1,2,3];Wang, Fuchen[1,2,3]

机构：[1]East China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Resource Utilizat Carbon containing W, Minist Educ, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Coal Liquefact Gasificat & Utilizat, Shanghai 200237, Peoples R China

年份：2026

卷号：538

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20261920658125);WOS:【SCI-EXPANDED(收录号:WOS:001765327700004)】；

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：Large-area proton exchange membrane fuel cell; Scale-up; Mesh-type transition zone; Staggered opposite sinusoidal wave reaction; zone; Transfer and reaction; Uniformity

摘要：The scale-up effects of large-area Proton Exchange Membrane (PEM) fuel cells have not been sufficiently understood. Specifically, the performance evolution under distinct directions has not been thoroughly clarified. The coupled behavior of flow distribution, species transport, and thermal characteristics has not been systematically resolved. The flow field plays a pivotal role in enhancing fuel cell performance. It consists of a reaction zone that enables radial supply of reactants to the porous electrodes, and a transition zone that connects the inlet/outlet to the reaction zone to promote uniform axial delivery of reactants. Herein, the objective of this work is to conduct a comprehensive evaluation of such large-area fuel cells and to propose a novel design that integrates a mesh-type transition zone and a staggered opposite sinusoidal wave reaction zone. First, this novel configuration is established. The Pearson correlation coefficients reveal that a transition zone proportion of 5% is appropriate. Building on this, the novel layout significantly enhances flow uniformity and intensifies transport processes, yielding an 8.96% improvement in net power output relative to the basic layout. The core lies in the effective flow induction by the mesh structure, the more uniform pressure drop distribution resulting from the converging-diverging channel regions, and the formation of cross-rib flow. Second, the applicability of the proposed design is demonstrated under various operational parameters. Net performance gains consistently exceed 8%. Third, the future prospects of the proposed design are assessed by elucidating the longitudinal and transverse scale-up effects. It delivers continuous performance improvement during longitudinal scale-up and maintains a high output level during transverse scale-up, consistently outperforming the basic design in terms of gas, water, and heat transfer characteristics.