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Ex-situ experimental study on dynamic behaviors and detachment characteristics of liquid water in a transparent channel of PEMFC

Author

Listed:
  • Yin, Yan
  • Li, Yu
  • Qin, Yanzhou
  • Li, Mengjie
  • Liu, Guokun
  • Zhang, Junfeng
  • Zhao, Jian

Abstract

A transparent model cell for direct ex-situ visualization of the dynamic characteristics of the growth, deformation and detachment of liquid water in the flow channel of the proton exchange membrane fuel cell (PEMFC) is designed. It fulfills the requirements of clear side imaging of water droplet behaviors in the channel. Different air velocities are implemented in the experiments to measure the droplet growth and detachment characteristics on the gas diffusion layer (GDL) surface. The results show that the droplet detachment time is shorter and detachment size is smaller with higher air velocity. Three stages of the droplet dynamic behaviors are defined, which are the growth, oscillation and removal stages of the droplet. The evolution of droplet dynamic contact angle and contact line at different stages is extracted and relevant characteristics are revealed. These results are important to quantitative characterization of droplet deformation and detachment on the GDL surface, and can also provide valuable parameters and validation for liquid water transport simulations in PEMFC.

Suggested Citation

  • Yin, Yan & Li, Yu & Qin, Yanzhou & Li, Mengjie & Liu, Guokun & Zhang, Junfeng & Zhao, Jian, 2022. "Ex-situ experimental study on dynamic behaviors and detachment characteristics of liquid water in a transparent channel of PEMFC," Renewable Energy, Elsevier, vol. 187(C), pages 1037-1049.
    • Handle: RePEc:eee:renene:v:187:y:2022:i:c:p:1037-1049
    DOI: 10.1016/j.renene.2022.02.031
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    References listed on IDEAS

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    1. Shao, Heng & Qiu, Diankai & Peng, Linfa & Yi, Peiyun & Lai, Xinmin, 2019. "Modeling and analysis of water droplet dynamics in the dead-ended anode gas channel for proton exchange membrane fuel cells," Renewable Energy, Elsevier, vol. 138(C), pages 842-851.
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    Cited by:

    1. Fan, Lixin & Liu, Yang & Luo, Xiaobing & Tu, Zhengkai & Chan, Siew Hwa, 2023. "Comparison and evaluation of mega watts proton exchange membrane fuel cell combined heat and power system under different waste heat recovery methods," Renewable Energy, Elsevier, vol. 210(C), pages 295-305.
    2. Liu, Yang & Zhao, Junjie & Tu, Zhengkai, 2024. "Detecting performance degradation in a dead-ended hydrogen-oxygen proton exchange membrane fuel cell used for an unmanned underwater vehicle," Renewable Energy, Elsevier, vol. 222(C).
    3. Chen, Jinxing & Bao, Zhiming & Xu, Yunfei & Fan, Linhao & Du, Qing & Qu, Guanshu & Li, Feiqiang & Jiao, Kui, 2024. "Investigation of liquid retention behavior in the flow field plate of large-size proton exchange membrane fuel cells: Effects of sub-distribution zone," Applied Energy, Elsevier, vol. 358(C).

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