Effect of various leg geometries on thermo-mechanical and power generation performance of thermoelectric devices
Effect of various leg geometries on thermo-mechanical and power generation performance of thermoelectric devices
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DOI：
10.1016/j.applthermaleng.2014.07.027
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发表时间：
2014-12-05
影响因子：
6.4
通讯作者：
Mossi, Karla
中科院分区：
文献类型：
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作者：
Erturun, Ugur;Erermis, Kaan;Mossi, Karla
本研究旨在探讨不同热电腿几何形状对热电装置热机械及发电性能的可能影响。为此，热电模块与各种腿的几何形状进行了建模和有限元分析，两种不同的温度梯度进行了使用ANSYS。每个模型的温度分布，功率输出，转换效率，在腿的热应力进行了评估。由于腿几何形状的变化，腿中热应力的大小和分布出现显着差异。对于100（C）2014 Elsevier Ltd.的温度梯度，矩形棱柱和圆柱形支腿中的热应力分别为49.9 MPa和43.3 MPa。保留所有权利。
This study aims to investigate possible effect of various thermoelectric leg geometries on thermo-mechanical and power generation performances of thermoelectric devices. For this purpose, thermoelectric modules with various leg geometries were modeled and finite-element analyses for two different temperature gradients were carried out using ANSYS. Temperature distributions, power outputs, conversion efficiencies, thermal stresses in the legs were evaluated for each model. Significant differences in magnitudes and distributions of the thermal stresses in the legs occurred due to changing leg geometries. Thermal stresses in the rectangular prism and the cylindrical legs were 49.9 MPa and 43.3 MPa respectively for the temperature gradient of 100 (C) 2014 Elsevier Ltd. All rights reserved.