Experimental and numerical study of proton exchange membrane fuel cell with spiral flow channels

Jiin-Yuh Jang, Chin-Hsiang Cheng, Wang-Ting Liao, Yu-Xian Huang and Ying-Chi Tsai

Applied Energy, 2012, vol. 99, issue C, 67-79

Abstract: Numerical simulation of the performance of a proton exchange membrane fuel cell (PEMFC) with spiral channels is performed in this study. Experiments are also conducted to verify the numerical predictions. The spiral channel pattern produces secondary vortices which lead to enhancement in heat and mass transfer in the curved channels and appreciably improves the performance of the fuel cell. In addition, the spiral channels may also lead to a reduction in the pressure drop of the gas flow through the fuel cell. When the sizes of the outlet channels are designed to be smaller than those of the inlet channels, water flooding in the catalyst layers can be further improved. In the present study, the spiral channel pattern consists of five inlet channels and five outlet channels. Radius and area of the active zone are 28.2mm and 2500mm2, respectively. A comparison between the spiral and the serpentine channels shows that the average current density with the former is higher than that with the latter by 11.9%. It is found that numerical predictions are in close agreement with the experimental results.

Keywords: Proton exchange membrane fuel cell; Channel design; Spiral channels (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (18)

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DOI: 10.1016/j.apenergy.2012.04.011

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