Non-isothermal transport phenomenon and cell performance of a cathodic PEM fuel cell with a baffle plate in a tapered channel

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• 作者：Shiang-Wuu Perng ; Horng-Wen Wu
• 关键词：Proton exchange membrane fuel cell ; Performance enhancement ; Non-isothermal tapered flow field ; Gap ratio ; Projection finite element ; Baffle plate
• 刊名：Applied Energy
• 出版年：2011
• 出版时间：January 2011
• 年：2011
• 卷：88
• 期：1
• 页码：52-67
• 全文大小：3679 K

文摘

This study uses a projection finite element analysis with an element-by-element preconditioned conjugate gradient method to investigate the non-isothermal tapered flow channel installed with a baffle plate for enhancing cell performance in the cathodic side of a PEMFC. The parameters studies including tapered ratio (0.25  1.0) and gap ratio (0.005  0.2) on the cell performance have been explored in detail. The results indicate that the stronger composite effect of tapered flow channel and baffle blockage provides a better convection heat transfer performance and a higher fuel flow velocity and thus enhances the cell performance.