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• W2904336296 abstract "Abstract New flow field configurations are developed to improve the performance of polymer electrolyte membrane fuel cells (PEMFCs). The developed designs aim to uniformly distribute the reactants over the reaction area of the catalyst layer surface, boost the under-rib convection mass transport through the gas diffusion layer, decrease the water flooding effect in the gas diffusion layer-catalyst layer interface, and maintain the membrane water content within the required range to augment protonic conductivity. To evaluate the performance parameters of a PEMFC, a comprehensive three-dimensional, two-phase mathematical model has been developed. The model includes the charge transport, electrochemical reactions, mass conservation, momentum, energy, and water transport equations. The results signify that the improved flow field patterns attain a considerable boosting of the output power, the under-rib convection mass transport, improvement of the reactant distribution over the catalyst layer surface and decline of the liquid water saturation in the gas diffusion layer-catalyst layer interface. The developed configurations achieve a higher power density of 0.82 W/cm2 at a current density of 1.74 A/cm2, compared to the standard serpentine configuration, which attains about 0.67 W/cm2 at a current density of 1.486 A/cm2.Accordingly, the develop configurations demonstrate a 22.6% enhancement in power density." @default.
• W2904336296 created "2018-12-22" @default.
• W2904336296 creator A5030754859 @default.
• W2904336296 creator A5032994076 @default.
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• W2904336296 date "2019-11-01" @default.
• W2904336296 modified "2023-10-17" @default.
• W2904336296 title "Enhancing under-rib mass transport in proton exchange membrane fuel cells using new serpentine flow field designs" @default.
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• W2904336296 doi "https://doi.org/10.1016/j.ijhydene.2018.11.147" @default.
• W2904336296 hasPublicationYear "2019" @default.
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