Thermal Stress Analysis of a Segmented Thermoelectric Generator under a Pulsed Heat Source

被引：10

作者：

Yu, Jia ^{[1
]}

Kong, Li ^{[1
]}

Zhu, Qingshan ^{[1
]}

Zhu, Hongji ^{[1
]}

Wang, Haoqing ^{[1
]}

Guan, Jialin ^{[2
]}

Yan, Qing ^{[3
]}

机构：

[1] Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Peoples R China

[2] Harbin HIT Middle Sch, Harbin 150001, Peoples R China

[3] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2020年 / 49卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Thermoelectric generators; pulsed heat flux; thermal stress; structure design; NUMERICAL-SIMULATION; HIGH-PERFORMANCE; WASTE HEAT; POWER; BEHAVIOR; GEOMETRY; DESIGN;

D O I：

10.1007/s11664-020-08163-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The power generation and thermal stress of a segmented thermoelectric generator (TEG) under a pulsed heat source are analyzed in this paper. The distribution of thermal stress in four-part thermoelectric materials and its development over time are discussed. The influence of duty cycle on the maximum thermal stress is analyzed. The effects of welding layer thickness on thermal stress and output energy are also discussed. The results show that reducing the duty cycle can increase the amount of power generated, accompanied by an increase in thermal stress. Increasing the thickness of the welding layer can effectively reduce the thermal stress in the bismuth telluride layer. Detailed analysis of thermal stress in thermoelectric materials under pulsed heat sources with different duty cycles can provide guidance for the structural design and reliability analysis in the practical application of a TEG.

引用

页码：4392 / 4402

页数：11

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