Abstract
A series of analysis methods is proposed to simulate the liquid–gas two-phase and multi-component transport phenomena in the gas diffusion layer (GDL) of a proton exchange membrane fuel cell (PEMFC). These methods involve measuring and predicting the two-phase flow properties of a GDL, and simulating the two-phase multi-component transport in the GDL. The capillary pressure is measured by the porous diaphragm method and predicted by the pore network model. The relative permeability is measured by the steady-state method and predicted by a combination of the single-phase and the two-phase lattice Boltzmann method. And the simulation of the liquid–gas two-phase transport is done using the multi-phase mixture model. The methods are applied to a carbon-fiber paper GDL to identify the two-phase multi-component transport in the GDL.
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