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Performance and mass transfer evaluation of PEM fuel cells with straight and wavy parallel flow channels of various wavelengths using CFD simulation

Authors
Kaiser, RashedAhn, Chi-YeongKim, Yun-HoPark, Jong-Chun
Issue Date
1월-2024
Publisher
Elsevier
Keywords
Computational fluid dynamics (CFD); Convection mass transfer; Diffusion mass transfer; Polymer electrolyte membrane fuel cell (PEMFC); Straight and wavy channels; Wavelengths
Citation
International Journal of Hydrogen Energy, v.51, pp 1326 - 1344
Pages
19
Journal Title
International Journal of Hydrogen Energy
Volume
51
Start Page
1326
End Page
1344
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/10346
DOI
10.1016/j.ijhydene.2023.05.025
ISSN
0360-3199
1879-3487
Abstract
Polymer electrolyte membrane fuel cells (PEMFC) have the potential to replace conventional fossil fuels. The flow channel is a key part of the PEMFC that facilitates reactant mass transfer into the gas diffusion layer, catalyst layer, and membrane. Overall performance of the PEMFC mostly depends on the efficient mass transfer, pressure drop, and water management within this channel. In the straight channel mass transfer occurs by diffusion while in the wavy channel mass transfer occurs through convection. In this study, the performance and mass transfer evaluation of a PEMFC with a straight flow channel and wavy flow channels of different wavelengths (λ = 4, 4.8, and 6) were compared using a commercial solver (STAR-CCM+16.04). The simulation results were validated experimentally and the results were in good agreement. Comparison of the simulation results established that the mass transfer through diffusion and convection was more enhanced in the case of wavy channels. ? 2023 Hydrogen Energy Publications LLC
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Ahn, Chi Yeong
친환경해양개발연구본부 (친환경연료추진연구센터)
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