Three-Dimension Numerical Analysis of Proton Exchange Membrane Fuel Cell with a Novel Cathode Flow Channel Shape

• Main Authors: I-Hong Ch, 儲益宏
• Other Authors: Ching-Huang Chiu
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/t2wey7

碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 100 === The study creates a three-dimensional proton exchange membrane fuel cell model by COMSOL Multiphysics. The calculated region has contained cathode flow channel, gas diffusion layers, and catalyst layers . This study uses the continuity equation and Brinkman equation to describe the reactant gas, production flow, the pressure distribution in the gas-diffusion layers, and catalyst layers. The Maxwell-Stefan equation is used to calculate species transport of multi-component mixture gas. The potential is described using charge conservation equation. The electrochemical reaction is calculated using Butler-Volmer equation . The main research objective is to explore six different flow channel geometric shapes (parallel flow, shrink parallel flow, tow serpentine, three serpentine, octangle flow, spiral flow). Besides, the effect of the concentration, pressure, velocity, current density, power density on the flow fields will be studied in detail.