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首页> 外文期刊>International Journal of Modern Physics, B. Condensed Matter Physics, Statistical Physics, Applied Physics >THE DEFORMATION OF THE MULTI-LAYERED PANEL OF SHEET METALS UNDER ELEVATED TEMPERATURES
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THE DEFORMATION OF THE MULTI-LAYERED PANEL OF SHEET METALS UNDER ELEVATED TEMPERATURES

机译：高温下板材的多层板变形

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摘要

A Molten Carbonate Fuel Cell (MCFC) stack consists of several layered unit cells. In each unit cell, the stiff structure of the separator plate contains the softer components, such as electrodes. When surface pressure acts on the stack over an extended period of time at elevated temperatures, the stiffness of the separator plate tends to degrade. Moreover, the demands for large electrode area (to increase the electric capacity of a unit cell) and thinner separator plates (to reduce weight) complicate the design of a separator plate with high stiffness. To evaluate the stiffness of the separator plate at elevated temperatures, we design and test a tiny, multi-layered separator plate specimen using a three-point bending tool. To determine the optimal structure of the separator plate, we investigate three design factors: angle, pitch and height. We adopt the Taguchi method to evaluate the experiments, and use finite element analysis to examine the experimental results. Based on these results, pitch is the most effective of these factors. As the pitch narrows, the stiffness of the separator plate increases. Therefore, we propose the pitch factor as a design criterion for the separator plate of the MCFC stack.
机译：熔融碳酸盐燃料电池（MCFC）堆栈由几个分层的单元电池组成。在每个单元电池中，隔板的坚硬结构包含较软的组件，例如电极。当表面压力在升高的温度下长时间作用在电池堆上时，隔板的刚度趋于降低。而且，对大电极面积（以增加单位电池的电容量）和较薄隔板（以减轻重量）的要求使具有高刚度的隔板的设计复杂化。为了评估隔板在高温下的刚度，我们使用三点弯曲工具设计并测试了一个微小的多层隔板样本。为了确定隔板的最佳结构，我们研究了三个设计因素：角度，间距和高度。我们采用田口方法对实验进行评估，并使用有限元分析来检验实验结果。根据这些结果，音高是这些因素中最有效的。随着间距变窄，隔板的刚度增加。因此，我们提出将螺距系数作为MCFC堆隔板的设计标准。

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