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Leakage Analysis of PEMFC Sealing System Considering Temperature Cycling

Author

Listed:
  • Zhi Chen

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

  • Yanfeng Xing

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

  • Juyong Cao

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

  • Fuyong Yang

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

  • Xiaobing Zhang

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

Abstract

Addressing the leakage rate prediction problem of the PEMFC sealing system is of great importance for its stable operation. The leakage calculation method of the PEMFC sealing system is proposed based on thermal coupling. The parallel plate leakage model is improved to make it applicable to the leakage rate calculation with a variable channel cross-section height. The interface macroscopic contact pressure is solved using a finite element simulation for solid mechanics analysis. The Greenwood–Williamson model is used for contact mechanics analysis to solve for the average height of the leakage channel. The effects of the ambient temperature, compression ratio, bipolar plate misalignment, and gasket size on the cell sealing effect were studied numerically. The data indicated that as the ambient temperature, compression ratio, and gasket size became larger, the volume leakage rate began to be reduced. The leakage rate as a parameter to characterize the sealing performance, considering the influence of gasket size, operating conditions, and other factors on the cell sealing effect, is more meaningful for the durability study and failure analysis of PEMFC.

Suggested Citation

  • Zhi Chen & Yanfeng Xing & Juyong Cao & Fuyong Yang & Xiaobing Zhang, 2023. "Leakage Analysis of PEMFC Sealing System Considering Temperature Cycling," Energies, MDPI, vol. 16(14), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:14:p:5475-:d:1197357
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    References listed on IDEAS

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    1. Chen, Chen-Yu & Su, Sheng-Chun, 2018. "Effects of assembly torque on a proton exchange membrane fuel cell with stamped metallic bipolar plates," Energy, Elsevier, vol. 159(C), pages 440-447.
    2. Shusheng Xiong & Zhankuan Wu & Wei Li & Daize Li & Teng Zhang & Yu Lan & Xiaoxuan Zhang & Shuyan Ye & Shuhao Peng & Zeyu Han & Jiarui Zhu & Qiujie Song & Zhixiao Jiao & Xiaofeng Wu & Heqing Huang, 2021. "Improvement of Temperature and Humidity Control of Proton Exchange Membrane Fuel Cells," Sustainability, MDPI, vol. 13(19), pages 1-14, September.
    3. Song, Ke & Wang, Yimin & Ding, Yuhang & Xu, Hongjie & Mueller-Welt, Philip & Stuermlinger, Tobias & Bause, Katharina & Ehrmann, Christopher & Weinmann, Hannes W. & Schaefer, Jens & Fleischer, Juergen , 2022. "Assembly techniques for proton exchange membrane fuel cell stack: A literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 153(C).
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