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8 February 2024 Simulation of droplet removal processes in proton exchange membrane fuel cell flow channel using lattice Boltzmann method
Ziheng Jiang, Jiadong Liao, Guogang Yang, Shian Li, Qiuwan Shen
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Proceedings Volume 13066, International Conference on Optoelectronic Materials and Devices (ICOMD 2023); 1306602 (2024) https://doi.org/10.1117/12.3025133
Event: 2023 International Conference on Optoelectronic Materials and Devices (COMD 2023), 2023, Chongqing, China
Abstract
Water management in the flow channel can enhance the mass transfer of proton exchange membrane fuel cells (PEMFC). A lattice Boltzmann method (LBM) that can reflect the real physical properties of the fluid is proposed to explore the purging behavior of liquid water. The effects of temperatures and channel heights are investigated, and the results show that purging should be done immediately after shutdown to avoid the increase in droplet discharge time due to temperature reduction. The discharge time of droplets at 75°C is 31.03% less than that at 25°C. The height of the channel affects the shape change and speed of the droplet, and the reduction of height from 300 μm to 200 μm leads to a 45.76% reduction in droplet discharge time.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Ziheng Jiang, Jiadong Liao, Guogang Yang, Shian Li, and Qiuwan Shen "Simulation of droplet removal processes in proton exchange membrane fuel cell flow channel using lattice Boltzmann method", Proc. SPIE 13066, International Conference on Optoelectronic Materials and Devices (ICOMD 2023), 1306602 (8 February 2024); https://doi.org/10.1117/12.3025133
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KEYWORDS
Viscosity
Porosity
Thermodynamics
Hydrogen fuel cells
Numerical simulations
Water content
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