Study on performance optimization of a new conical Ⅰ-type thermoelectric cooler
In this paper,a three-dimensional model of a new conical Ⅰ-type thermoelectric cooler was established by COMSOL,and the optimization of the conical Ⅰ-type thermoelectric cooler cooling performance was performed by finite element method.The effect of the thermoelectric leg sizes and the segmented leg structure on the cooling performance of TEC in different temperature regions was analyzed.The results show that the minimum cold end temperature of the conical Ⅰ-type leg can reach 235.48 K,which are decreased by 8.47 K,8.46 K and 1.77 K in comparison with the cold end temperatures of the traditional leg,the cylindrical leg and the conical X-type leg at the same current,respectively.The thermoelectric cooler performance can be improved by increasing the height of the conical Ⅰ-type and the contact area of the cold and hot ends,reducing the cross-sectional area of the cylindrical section and adopting the segmented thermoelectric structure.
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