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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 85, 2024 - Issue 9
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Articles

Numerical investigation of effective thermal conductivity of gas diffusion layer of the PEM fuel cell

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Pages 1356-1378 | Received 02 Dec 2022, Accepted 05 Apr 2023, Published online: 28 Apr 2023
 

Abstract

A three-dimensional multicomponent multiphase (MCMP) thermally coupled lattice Boltzmann model (LBM) was developed to investigate the effect of water content on the effective thermal conductivity (ETC) of the gas diffusion layer (GDL) of a polymer electrolyte membrane fuel cell (PEMFC). A stochastic model was then used to reconstruct the 3D GDLs, and the effects of the material conditions on the heat and mass transfer characteristics were examined in detail. The results showed that the more the liquid water was saturated, the higher the estimated ETC of the GDL. When the wettability of the carbon fiber was constant, the distribution of liquid water played a more critical role in predicting the ETC.

Declaration of interest statement

On behalf of all the authors, the corresponding author states that there are no conflicts of interest.

Additional information

Funding

This research was supported by the GRRC program of Gyeonggi province [GRRC KGU 2020-B02, Research on Innovation Intelligent Manufacturing System].

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