Effect of configuration size of thermoelectric couple on performance of annular thermoelectric generator

被引：0
|
作者：
Zhang A.-B. [1 ]
Yan W.-K. [1 ]
Pang D.-D. [2 ]
Wang B.-L. [3 ]
Wang J. [1 ]
机构：
[1] Piezoelectric Device Laboratory, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo
[2] Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan
[3] Centre for Infrastructure Engineering, School of Engineering, Western Sydney University, Penrith
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2020年 / 54卷 / 05期
关键词：
Annular thermoelectric generator; Configuration size of thermoelectric couple; Contact resistance; Energy conversion efficiency; Output power;
D O I：
10.3785/j.issn.1008-973X.2020.05.012
中图分类号：
学科分类号：
摘要：
A theoretical model was provided for the annular thermoelectric generator (ATEG) based on the one-dimensional steady heat transport theory. Effects of configuration size of P-type and N-type thermoelectric couple, asymmetry of material properties of thermoelectric couple and interface contact resistance on the output performance of ATEG were considered. The relationship between configuration size of P-type and N-type thermoelectric couple and their material properties was determined for the ideal ATEG based on the principle of maximum energy conversion efficiency. The influence of interface contact heat resistance and electrical resistance was considered, and the linear simplified solution which is more convenient to use than exact solution was obtained. The optimized angle ratio of N-type to P-type thermoelectric legs in the direction of circumference was also determined when the maximum output power and maximum conversion efficiency of ATEG attained. The interface contact resistance has a significant effect on the optimized anlge ratio for the short ATEG, and this ratio approaches to the ideal solution gradually as the configuration size of ATEG increases. Resluts obtained based on the ideal model can be used to guide the design of the realistic ATEG device when the size parameter sr is greater than 2. © 2020, Zhejiang University Press. All right reserved.
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页码：947 / 953
页数：6
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