Analysis of Water Transport in PEFCs by Magnetic Resonance Imaging Measurement
Analysis of Water Transport in PEFCs by Magnetic Resonance Imaging Measurement
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DOI：
10.1149/1.2167954
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发表时间：
2006-04
影响因子：
3.9
通讯作者：
K. Teranishi;S. Tsushima;S. Hirai
中科院分区：
文献类型：
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作者：
K. Teranishi;S. Tsushima;S. Hirai
水的管理是限制聚合物电解质燃料电池（PEFC）运行的最重要的问题之一。为了更好地理解聚合物电解质膜（PEM）中的水传输，已经分析了PEM中的水传输的一维模型。为了提高模型的准确性，磁共振成像（MRI）的实验进行，以确定最佳参数的模型。使用所得的参数，我们编程的燃料电池中的膜的最大水含量和膜表面的水传递系数的测量数。在各种操作条件下，PEM的水分布与先前的MRI测量结果一致。
Management of water is one of the most important issues that limits the operation of polymer electrolyte fuel cells (PEFCs). To better understand water transport in polymer electrolyte membranes (PEMs), a one-dimensional model has been analyzed for water transport in a PEM. To increase the model accuracy, magnetic resonance imaging (MRI) experiments were done to determine the optimum parameters for the model. Using the resulting parameters, we programmed the measured number of maximum water content of the membrane in a fuel cell and water transfer coefficient of the membrane surface. The resulting water distribution of the PEM under various operation conditions was consistent with previous MRI measurements.