Evaluation of self-water-removal in a dead-ended proton exchange membrane fuel cell
Evaluation of self-water-removal in a dead-ended proton exchange membrane fuel cell
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DOI：
10.1016/j.apenergy.2012.12.008
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发表时间：
2013-04
期刊：
影响因子：
11.2
通讯作者：
Z. Wan;Jing Liu;Zhiping Luo;Z. Tu;Zhichun Liu;Wei Liu
中科院分区：
文献类型：
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作者：
Z. Wan;Jing Liu;Zhiping Luo;Z. Tu;Zhichun Liu;Wei Liu
研究了垂直放置的死端质子交换膜燃料电池(PEMFC)的工作特性。从理论上分析了通道几何形状与气体扩散层(GDL)表面润湿性的关系。在理论分析的基础上，采用宽度为2.0 mm、深度为1.0 mm的直流道进行实验研究，并在堆端凝结水分以提高除水效果。结果表明，所设计的燃料电池可以在800mAcm−下工作1h左右，电池的性能随着工作温度的升高而降低。回收的液态水与理论值吻合较好。
In this paper, the operation characteristic of a dead-ended proton exchange membrane fuel cell (PEMFC) placed with vertical orientation is investigated. The relationship between the channel geometry and the wettability of the gas diffusion layer (GDL) surface is theoretically analyzed. Based on the theoretical analysis, straight flow channels with 2.0mm width and 1.0mm depth are used for the experimental investigation and the moisture is condensed at the stack end to improve water removal. The results show that the designed fuel cell can operate for about 1h at 800mAcm−2and the performance of the cell decreases with the increase in the operation temperature. Moreover, the recovered liquid water is corresponded closely to the theoretical values.