Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field

The design of bipolar plates is critical for improving the performance of proton exchange membrane fuel cells (PEMFCs). In this research, a new additional outlet based on a PEMFC’s parallel flow field was proposed, and three different positions of outlet were designed on the target side of gas flowi...

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Autores principales:	Yan Zhang, Chenpeng Liu, Zhongmin Wan, Chen Yang, Shi Li, Zhengkai Tu, Min Wu, Yongqing Chen, Wanchun Zhou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	PEMFC parallel flow field the additional outlet water saturation oxygen concentration peak power density Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/5afbcb739e8e4af4912f947eab5e57cb
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id	oai:doaj.org-article:5afbcb739e8e4af4912f947eab5e57cb
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spelling	oai:doaj.org-article:5afbcb739e8e4af4912f947eab5e57cb2021-11-25T18:51:53ZPerformance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field10.3390/pr91120612227-9717https://doaj.org/article/5afbcb739e8e4af4912f947eab5e57cb2021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/2061https://doaj.org/toc/2227-9717The design of bipolar plates is critical for improving the performance of proton exchange membrane fuel cells (PEMFCs). In this research, a new additional outlet based on a PEMFC’s parallel flow field was proposed, and three different positions of outlet were designed on the target side of gas flowing in parallel channels. The results revealed that the additional outlets are able to increase the gas speed through channels near the additional outlets, which results in a lower water saturation and a more uniform distribution of oxygen concentration at the interface between the catalyst layer (CL) and gas diffusion layer (GDL). With the variation of the outlet position in the target side, it was found that the additional outlet set in the middle of the target side exhibits the highest increase of peak power density, namely, 13%. Furthermore, the optimal position of the additional outlet was proved to be suitable for PEMFCs with various active surface areas, indicating the universality of the present results in the study.Yan ZhangChenpeng LiuZhongmin WanChen YangShi LiZhengkai TuMin WuYongqing ChenWanchun ZhouMDPI AGarticlePEMFCparallel flow fieldthe additional outletwater saturationoxygen concentrationpeak power densityChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 2061, p 2061 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	PEMFC parallel flow field the additional outlet water saturation oxygen concentration peak power density Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	PEMFC parallel flow field the additional outlet water saturation oxygen concentration peak power density Chemical technology TP1-1185 Chemistry QD1-999 Yan Zhang Chenpeng Liu Zhongmin Wan Chen Yang Shi Li Zhengkai Tu Min Wu Yongqing Chen Wanchun Zhou Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field
description	The design of bipolar plates is critical for improving the performance of proton exchange membrane fuel cells (PEMFCs). In this research, a new additional outlet based on a PEMFC’s parallel flow field was proposed, and three different positions of outlet were designed on the target side of gas flowing in parallel channels. The results revealed that the additional outlets are able to increase the gas speed through channels near the additional outlets, which results in a lower water saturation and a more uniform distribution of oxygen concentration at the interface between the catalyst layer (CL) and gas diffusion layer (GDL). With the variation of the outlet position in the target side, it was found that the additional outlet set in the middle of the target side exhibits the highest increase of peak power density, namely, 13%. Furthermore, the optimal position of the additional outlet was proved to be suitable for PEMFCs with various active surface areas, indicating the universality of the present results in the study.
format	article
author	Yan Zhang Chenpeng Liu Zhongmin Wan Chen Yang Shi Li Zhengkai Tu Min Wu Yongqing Chen Wanchun Zhou
author_facet	Yan Zhang Chenpeng Liu Zhongmin Wan Chen Yang Shi Li Zhengkai Tu Min Wu Yongqing Chen Wanchun Zhou
author_sort	Yan Zhang
title	Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field
title_short	Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field
title_full	Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field
title_fullStr	Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field
title_full_unstemmed	Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field
title_sort	performance enhancement of pem fuel cells with an additional outlet in the parallel flow field
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5afbcb739e8e4af4912f947eab5e57cb
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Performance Enhancement of PEM Fuel Cells with an Additional Outlet in the Parallel Flow Field

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