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首页> 外文期刊>Journal of power sources >Non-destructive Inverse method for determination of irregular internal temperature distribution in PEMFCs
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Non-destructive Inverse method for determination of irregular internal temperature distribution in PEMFCs

机译：确定PEMFC内部温度分布不规则的无损逆方法

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A non-destructive inverse method is developed to determine internal temperature distribution of the PEMFCs. In this study, the attention is focused on global measurement" for the irregular temperature distribution at the interface Between the carbon plate and the membrane electrode assembly (MEA) based on the measured temperature data on the outer surface of the end plate. A direct problem solver capable of predicting temperature distribution in the solid layers of the PEMFC under various conditions is incorporated in the inverse approach to provide temperature solutions. In this report, a concept of point-by-point temperature prediction is presented. This approach is particularly suitable for determining irregular temperature distribution that is difficult to handle by the existing polynomial-function approach [C.H. Cheng, M.H. Chang, Predictions of internal temperature distribution of PEMFC by undestructive inverse method, J. Power Sources, in press]. A number of test cases are considered in this study. Some irregular temperature functions are specified and regarded as exact temperature distributions to predict. Meanwhile, the influence of uncertainty in the measured temperature data on the outer surface is evaluated.
机译：开发了一种无损反演方法来确定PEMFC的内部温度分布。在这项研究中，注意力集中在基于在端板外表面上测得的温度数据的碳板和膜电极组件（MEA）之间界面处不规则温度分布的整体测量上。直接的问题能够在各种条件下预测PEMFC固体层中温度分布的求解器被应用到逆方法中，以提供温度解决方案，在此报告中，提出了逐点温度预测的概念，该方法特别适用于确定现有的多项式函数方法难以处理的不规则温度分布[CH Cheng，MH Chang，无损逆方法对PEMFC内部温度分布的预测，J。Power Sources，印刷中]。指定了一些不规则的温度函数并将其视为精确温度di预测的贡献。同时，评估了所测温度数据的不确定性对外表面的影响。

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