Enhancing Power Density of PEMFC with Narrow Distribution Zone Using Parallel Serpentine Hybrid Flow Field

Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 122315 - 122315

Published: Jan. 1, 2025

Language: Английский

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The mass transport characteristics and performance improvement with the nonuniform block flow channel in a proton exchange membrane fuel cell

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(3)

Published: March 1, 2025

The gas flow field significantly impacts the output power of proton exchange membrane fuel cells (PEMFCs). A nonuniform design is developed in this study to optimize arrangement blocks field, thereby enhancing PEMFC power. Numerical simulations indicate block arrangements mass transfer performance compared uniform arrangements. Under 0.4 V working voltage, new has increased density by 4.84%. with three positioned near outlet effectively leverages entrance effect and disrupts thicker boundary layer. This improvement increases reactant concentration catalyst layer, reaction process. efficiency liquid water transport also been enhanced outlet, helping mitigate flooding. impact varying quantities on resistance assessed through pumping cathode. Results that for same number blocks, remains identical both fields. With rear arrangement, increasing raises As count from 3 7, as much 64.7%. However, change current not significant. Therefore, adopting a simple yet effective strategy enhance performance.

Language: Английский

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A comprehensive review of metallic bipolar plates in PEMFCs of surface engineering and new materials development

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 137, P. 553 - 574

Published: May 14, 2025

Language: Английский

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Adaptable design of parallel-leaf vein stratified flow field under different inlet and outlet arrangements in PEM fuel cells

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 146557 - 146557

Published: May 1, 2025

Language: Английский

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