A Study of Channel Shapes and Bends on the Performance of Fuel Cells

• Main Authors: Shin-Jie Yang, 楊仕杰
• Other Authors: Ruei-Yih Tsai
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/66319148588223240235

碩士 === 中原大學 === 機械工程研究所 === 94 === First，the purpose of this study is to investigate different channel shape，and find out better from them for cell，then to investigate and discuss phenomenon for two bending place of channel. The method of this study was used computational fluid dynamic software FLUENT to simulate the different channel shape and bending place of channel ：one is rectangular；and the other is full round . Using different mass flow rate in the anode channel，different gas diffusion layer porosity and different temperature to observe and compare effect for the cell. The results of simulation reveal that enhance temperature and increase porosity can improve current density. The effect of increasing Reynold number is not huge to current density，but can make consumption of concentration delay. On the other hand，result reveals performance of rectangular bend channel is much better full round bend channel.