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Abstract
Abstract The use of circulating gas self-humidification for fuel cell anodes will reduce the use of external humidifiers, thus reducing the cost and layout space, so most fuel cells use the anode self-humidification cycle mode. However, there is little research on the 3D simulation of PEMFC considering the anodic self-humidification cycle. In this paper, a three-dimensional PEMFC model considering the anode self-humidification cycle was established to explore the effects of working current density and cathode inlet humidity on the fuel cell performance of the anode self-humidification cycle. The results show that in anode cycling mode, higher working current density has advantages, but the advantages of high cathode inlet humidity are not obvious, and the performance of low cathode inlet humidity is not bad in anode cycling mode. In anode cycling mode, it is recommended to use high current density between medium and high current density. Between medium and high cathode intake humidity, a medium cathode intake humidity is recommended.
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