Effects of Inlet Gas Allocations on Performance of an Active Drainage Flow Field Proton Exchange Membrane Fuel Cell

In developing a proton exchange membrane fuel cell, a high current density is encountered, thus requiring a novel flow field with great drainage performance. Our previous study proposed a novel compound flow field called an active drainage flow field with three inlets, which has an excellent output...

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Published inACS omega Vol. 6; no. 47; pp. 31891 - 31900
Main Authors Wu, Mingge, Ji, Xianhang, Wang, Yixiang, Zhou, Yulu, Jiang, Rui
Format Journal Article
LanguageEnglish
Published American Chemical Society 30.11.2021
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Summary:In developing a proton exchange membrane fuel cell, a high current density is encountered, thus requiring a novel flow field with great drainage performance. Our previous study proposed a novel compound flow field called an active drainage flow field with three inlets, which has an excellent output and drainage performance. Furthermore, the influence of muti-inlet reactant gas allocation on the three inlets is discussed in this study. The results showed that the small mass flow in the active drainage (AD) channel causes a waste of active area, while the large mass flow in the AD channel causes under-ribs convection. Considering the output and drainage performance, the 15% AD mass flow case shows the best performance under the high relative humidity investigation.
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ISSN:2470-1343
2470-1343
DOI:10.1021/acsomega.1c04649