期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 54, 期 21-22, 页码 4462-4472出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2011.06.037
关键词
CFD analysis; Process intensification; Proton exchange membrane fuel cell; Energy; Multiphase heat and mass transfer
资金
- National Petroleum Agency (ANP) [PRH009]
- CNPq [504102/2009-5]
In this study it is investigated the performance of a proton exchange membrane fuel cell. The results show that an inclination of 0.75 degrees in the flow channel can effectively increase the current density generated by almost 9.5% and the maximum power density by 8%. With the use of more tapered channels the distribution of the reactants in the porous media leads to a better effective oxygen distribution, affecting directly the heat transfer inside the cell. In contrast, the pressure drop in the flow channel increase by factors of approximately 2 and 3.5 for angles of 0.5 degrees and 0.75 degrees, respectively. (C) 2011 Elsevier Ltd. All rights reserved.
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