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Impact of flow field geometry, hydraulic diameter, operating temperature, and gas diffusion layer materials on PEM fuel cell performance: A numerical investigation
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DOI：10.1016/j.ijhydene.2026.156859.png)
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Abstract
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• The PEMFCs optimized with Trapezoidal geometry, hydraulic diameter (Hd) and GDLs. • Trapezoidal with Hd 0.4 mm optimized mass transfer and reduced localized depletion. • Nickel foam reduced pumping power and improved mass transfer due to high porosity. • Optimized PEMFCs delivered current density 1.79 A/cm2 and power density 0.84 W/cm2. • Optimized PEMFCs improved water management, cell stability and efficiency.
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