Impact of bipolar plate flow channel cross-section shape on PEMFC mass transfer and performance

HAO Zhaoyang; ZHENG Jinbao; MIAO Xuelong; DI Yage

doi:10.12299/jsues.23-0218

Volume 38 Issue 4

Dec. 2024

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Article Navigation > Journal of Shanghai University of Engineering Science > 2024 > 38(4): 382-388

HAO Zhaoyang, ZHENG Jinbao, MIAO Xuelong, DI Yage. Impact of bipolar plate flow channel cross-section shape on PEMFC mass transfer and performance[J]. Journal of Shanghai University of Engineering Science, 2024, 38(4): 382-388. doi: 10.12299/jsues.23-0218

Citation:

HAO Zhaoyang, ZHENG Jinbao, MIAO Xuelong, DI Yage. Impact of bipolar plate flow channel cross-section shape on PEMFC mass transfer and performance[J]. Journal of Shanghai University of Engineering Science, 2024, 38(4): 382-388. doi: 10.12299/jsues.23-0218

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Impact of bipolar plate flow channel cross-section shape on PEMFC mass transfer and performance

doi: 10.12299/jsues.23-0218

School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620，China

Received Date: 2023-10-23
Publish Date: 2024-12-31

Abstract

Abstract

The performance of parallel single-flow channel fuel cells with a rectangular cross-section was investigated using COMSOL software. A performance simulation model was established and its feasibility was verified. On this basis, the impacts of different cross-sectional shapes on the power density, mass transfer, temperature, velocity, pressure drop, and net output efficiency of parallel single channel fuel cells were examined. The result shows that the cross-sectional shape of the flow channel significantly affects the fuel cell performance under low voltage and high current density conditions. The triangular cross-section model generally exhibits a higher maximum power density. The W-shaped cross-section has a higher flow velocity and smaller temperature change compared to the rectangular cross-section, with an increase of 1.8% in hydrogen consumption and a 6.6% in oxygen consumption respectively. It demonstrates a higher power density with a similar net output efficiency, providing support for the design of bipolar plates.
- hydrogen fuel cell,
- cross-section,
- mass transfer,
- power density,
- net output efficiency

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References(20)

References

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