Dynamic response characteristics of thermoelectric generator predicted by a three-dimensional heat-electricity coupled model

被引：81

作者：

Meng, Jing-Hui ^{[1
]}

Zhang, Xin-Xin ^{[1
]}

Wang, Xiao-Dong ^{[2
,3
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China

[2] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China

[3] North China Elect Power Univ, Beijing Key Lab Multiphase Flow & Heat Transfer L, Beijing 102206, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2014年 / 245卷

关键词：

Thermoelectric generator; Seebeck effect; Dynamic characteristics; Output power; Conversion efficiency; PERFORMANCE; BEHAVIOR; DEVICE; DESIGN;

D O I：

10.1016/j.jpowsour.2013.06.127

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The practical application environments of thermoelectric generators (TEGs) always change, which make a requirement for studying the dynamic response characteristics of TEGs. This work develops a complete, three-dimensional and transient model to investigate this issue. The model couples the energy and electric potential equations. Seebeck effect, Peltier effect, Thomson effect, Joule heating and Fourier heat conduction are taken into account in this model. Dynamic output power and conversion efficiency of the TEG, which are caused by variations of the hot end temperature, cold end temperature and load current, are studied. The response hysteresis of the output power to the hot end and cold end temperatures, the overshoot or undershoot of the conversion efficiency are found and attributed to the delay of thermal diffusion. However, the output power is synchronous with the load current due to much faster electric response than thermal response. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：262 / 269

页数：8

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