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Abstract:
To improve the performance stability and efficiency of proton exchange membrane fuel cell (PEMFC), an integrated proton exchange membrane fuel cell based on micro heat pipe array (MHPA) for thermal management was proposed, and a three-dimensional simulation model of the PEMFC was established. This study has addressed the thermal and water management challenges inherent to PEMFC. The effects of MHPA on the electrochemical parameters of the fuel cells were analyzed via simulation, and the effects of the air stoichiometric ratio and hydrogen supply pressure on the performance and parameters of the MHPA-PEMFC were studied. Results demonstrated that integrating a MHPA can reduce the operating temperature of PEMFC by 8.1 K and increase the average current density by 385 A/m2 at a working voltage of 0.619 V. Optimal performance in terms of current density and uniformity could be achieved when the air stoichiometry was 111. At a hydrogen pressure of 70 kPa, the current fluctuation rate was 2.31 %, and the hydrogen utilization rate was 74.3 %. Overall, these results provide guidance for improving hydrothermal management in MHPA-PEMFC.
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FUEL
ISSN: 0016-2361
Year: 2025
Volume: 386
7 . 4 0 0
JCR@2022
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SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 12
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