Title: An experimental research on the net output power and current density distribution of <scp>PEM</scp> fuel cells with trapezoid baffled flow fields
Abstract: International Journal of Energy ResearchVolume 45, Issue 15 p. 21464-21475 RESEARCH ARTICLE An experimental research on the net output power and current density distribution of PEM fuel cells with trapezoid baffled flow fields Xun Zhang, Xun Zhang orcid.org/0000-0002-9620-8361 State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, ChinaSearch for more papers by this authorXiaolong Yang, Corresponding Author Xiaolong Yang [email protected] State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, China Correspondence Xiaolong Yang, State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, Hunan, China. Email: [email protected] Cheng Wang, Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, China. Email: [email protected] for more papers by this authorWeitao Gao, Weitao Gao orcid.org/0000-0002-0988-2906 Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, ChinaSearch for more papers by this authorCheng Wang, Corresponding Author Cheng Wang [email protected] orcid.org/0000-0002-6082-4015 Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, China Correspondence Xiaolong Yang, State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, Hunan, China. Email: [email protected] Cheng Wang, Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, China. Email: [email protected] for more papers by this author Xun Zhang, Xun Zhang orcid.org/0000-0002-9620-8361 State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, ChinaSearch for more papers by this authorXiaolong Yang, Corresponding Author Xiaolong Yang [email protected] State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, China Correspondence Xiaolong Yang, State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, Hunan, China. Email: [email protected] Cheng Wang, Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, China. Email: [email protected] for more papers by this authorWeitao Gao, Weitao Gao orcid.org/0000-0002-0988-2906 Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, ChinaSearch for more papers by this authorCheng Wang, Corresponding Author Cheng Wang [email protected] orcid.org/0000-0002-6082-4015 Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, China Correspondence Xiaolong Yang, State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, Hunan, China. Email: [email protected] Cheng Wang, Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing, China. Email: [email protected] for more papers by this author First published: 24 August 2021 https://doi.org/10.1002/er.7194 Funding information: National Key R&D Program of China, Grant/Award Numbers: 2016YFB0101200, 2018YFE0202000; National Natural Science Foundation of China, Grant/Award Numbers: 21773136, 51775179, U1664259 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Summary The net output power and current density distribution uniformity of proton exchange membrane (PEM) fuel cells are particularly important evaluation criteria in the flow field design. In recent years, the flow field with baffles has become research hotspots, and the trapezoid baffled flow field has been proved to increase the performance of fuel cells. However, most of the research studies only stay at the level of single flow channel simulation and little experimental data on the flow field of the entire bipolar plate. In this study, the performance, pressure drop, and current density distribution of PEM fuel cells with different baffled flow field plates are tested experimentally. The results indicate that adding baffles in the conventional parallel flow field can significantly improve the output performance and current density distribution uniformity of the fuel cell, and the improvement effect is better with the increase in baffle height. However, increasing the baffle height will inevitably raise the pressure drop of the flow field. To solve this problem, the flow field with a half baffle arrangement is innovatively designed. The proposed half-baffled flow field can keep the uniformity of current density distribution and reduce the pressure drop at the same time. This method provides a new inspiration for the design of the flow field. Volume45, Issue15December 2021Pages 21464-21475 RelatedInformation