of the GDL. The performance of PEM fuel cell varies with different porosity and thickness of the GDL. Hence, a three … dimensional model is simulated to find out the effects of porosity and thickness of GDL on PEMFC performance using a commercial … code CFD-ACE+. It was observed that high porosity gave high current density by allowing more reactants to reach the …

cell voltage. The effects of isotropic and anisotropic permeability of gas diffusion layer have also been studied and the … simulated results show that the high isotropic permeability or a combination of high in-plane and low through-plane permeability … deteriorates with low in-plane and high through-plane permeability of gas diffusion layer. …

size distribution, gas permeability, surface structure, and contact angle on the surface of the GDL were measured in four …; Toray paper without PTFE loading; and Toray paper with 20wt% of PTFE loading. After repeated freezing cycles, the porosity … in its width and length after repeated freezing cycles. The through-plane gas permeability of the GDL with the MPL …