文献类型：期刊文献

英文题名：Performance assessment of large-area proton exchange membrane fuel cells with metal foam flow fields

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：558

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20261620510273);WOS:【SCI-EXPANDED(收录号:WOS:001747605500001)】；

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; Metal foam flow field; Reactant uniformity; Scale-up; Axial and radial flow

摘要：In large-area proton exchange membrane fuel cells with Metal Foam Flow Fields (MFFFs), the influence of the transition zone on reactant uniformity has not been fully clarified. As the active area is further scaled up to meet higher power demands, the underlying mechanisms governing transfer and reaction remain insufficiently understood. To address these gaps, a systematic assessment is conducted in this work. First, the effects of the inlet/ outlet width and the transition zone length on reactant uniformity in the basic MFFF design are investigated, with the former contributing much more significantly. Building on this, the scale-up effects are elucidated. A 17.11 % reduction in reactant uniformity leads to performance degradation during the transverse enlargement. Second, a novel MFFF design with grooves is proposed, yielding a significant performance improvement compared to the basic layout. The core lies in the promoted reactant uniformity and the enhanced radial flow, quantified as an index of 1.43 % and an intensity of 5.70, respectively. During scale-up, the reactants remain uniformly distributed, not acting as a limiting factor. Radial flow intensities increase to 7.12 and 7.31 in the longitudinal and proportional directions, respectively, resulting in further improvements in performance. Third, the applicability of the novel design is validated by its sustained performance advantage over the basic design after accounting for mechanical effects, a broader operating load, and parameter sensitivity. Furthermore, the novel layout achieves a system efficiency of 28.20 %, which is higher than that of the basic design (22.85 %), representing a 23.38 % improvement. It also remains at a high level during scale-up. Fourth, an examination of the geometric and operational parameters is conducted using the response surface methodology and non-dominated sorting genetic algorithm II. The optimal solution yields net power density of 0.834 W cm-2 for the novel design, which represents a 23.27 % enhancement over the basic layout. The net gain is further increased to 25.07 % during scale-up. Additionally, the strengths-weaknesses-opportunities-threats characteristics are presented to provide insights for future research.