文献类型：期刊文献

英文题名：Numerical investigation of commercial-sized proton exchange membrane fuel cells: Toward larger sizes

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, Inst Clean Coal Technol, 130 Meilong Rd, 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：151

起止页码：287

外文期刊名：JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY

收录：;EI(收录号：20251518201375);WOS:【SCI-EXPANDED(收录号:WOS:001573015500013)】；

基金：The research is supported by Shanghai YangFan Program (24YF2709200) and Fundamental Research Funds for the Central University (JKCB1241102).

语种：英文

外文关键词：Commercial-sized PEM fuel cell; Transition zone; Uniformity; Scale-up; Enhanced transport

摘要：Further scale-up of the active area is one of the future development trends for commercial-sized Proton Exchange Membrane (PEM) fuel cells. In this work, a three-dimensional two-phase numerical model of commercial-sized PEM fuel cells is constructed. Firstly, two fundamental parameters, the transition zone dimension and cell aspect ratio, are explored. The potential impacts of the transition zone on the uniformity and performance of cells are clarified. Secondly, the scale-up effect is elucidated via cells with active areas of 94.2, 165.6, 260, 373.2, and 509.6 cm2. The constraint during scale-up is not the uneven flow but the limited transport capability of parallel straight flow fields. The net power density reduces from 0.5149 W/cm2 to 0.5133 W/cm2 during scale-up, representing a reduction of 0.31 %. Thirdly, a scale-up strategy that adds blocks downstream of the cathode gas flow channel is proposed to effectively enhance reactant transport. The net power density increases from 0.5227 W/cm2 to 0.5269 W/cm2 during scale-up, with a rise of 0.82 %. These findings are promising to provide guidance for further scale-up of commercial-sized PEM fuel cells and emphasize the importance of considering the performance variation during scale-up in future flow field design.