| Summary: | 碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 98 === The study create a two-dimensional two-phase proton exchange membrane fuel cell model by COMSOL Multiphysics. The calculated region has contained anode and cathode gas diffusion layers, catalyst layers and proton exchange membrane.
This study uses the continuity equation and Brinkman equation to describe the reactant gas and production flowing and the pressure distribution in the gas-diffusion layers, catalyst layers. The gas diffusion layer and catalyst layer considering the two-phase (gas or liquid) mass transfer, and water saturation. The Maxwell-Stefan equation is to calculate species tansport of multi-component mixture gas. The potential is use charge conservation equation to decribe. The electrochemical reation is use Butler-Vomer equation to calculate.
The main research objective is to change the operating parameters, and study the current density and power density and liquid water saturation effect.
Key word：Two phase flow, PEMFC, COMSOL.
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