期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 37, 期 16, 页码 11904-11911出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2012.05.091
关键词
Fuel cell; Proton exchange membrane fuel cell PEMFC; Flow field design; Water management; Hydrogen
资金
- Brazilian Government Agency Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES/PROCAD) [200/2007]
- Brazilian Government Agency Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
In a proton exchange membrane fuel cell (PEMFC) water management is one of the critical issues to be addressed. Although the membrane requires humidification for high proton conductivity, water in excess decreases the cell performance by flooding. In this paper an improved strategy for water management in a fuel cell operating with low water content is proposed using a parallel serpentine-baffle flow field plate (PSBFFP) design compared to the parallel serpentine flow field plate (PSFFP). The water management in a fuel cell is closely connected to the temperature control in the fuel cell and gases humidifier. The PSBFFP and the PSFFP were evaluated comparatively under three different humidity conditions and their influence on the PEMFC prototype performance was monitored by determining the current density-voltage and current density-power curves. Under low humidification conditions the PEMFC prototype presented better performance when fitted with the PSBFFP since it retains water in the flow field channels. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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