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Optimisation of gas access through a thin porous layer with a partially occluded inlet surface

Carrère, Pierre and Prat, Marc Optimisation of gas access through a thin porous layer with a partially occluded inlet surface. (2020) Transport in Porous Media, 133. 49-69. ISSN 0169-3913

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Official URL: https://doi.org/10.1007/s11242-020-01413-0

Abstract

The gas access through a thin porous layer is studied in relation to the reactant gas transfer in the gas diffusion layer (GDL) of polymer electrolyte membrane fuel cells. In the considered situation, the surface through which the gas enters into the porous layer is partially occluded. The aim is to design the porous medium microstructure so that the gas flux is uniformly distributed over the gas exit surface. The method combines pore network simulations and an optimisation method based on a genetic algorithm. The optimisation procedure is performed for a dry GDL. Then, various scenarios of wet GDL are considered in order to check whether the optimised GDL still performs better than the non-optimised GDL in the presence of liquid water.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:06 Jan 2021 19:19

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