Influence of contact pressure on the performance of thermoelectric generator

被引：0
作者：
Du, Qing [1 ]
Zhang, Yuhao [1 ]
Yu, Shuhai [1 ]
机构：
[1] State Key Laboratory of Engines, Tianjin University
来源：
Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2014年 / 47卷 / 01期
关键词：
Contact pressure; Thermal contact resistance; Thermoelectric generation; Transient response;
D O I：
10.11784/tdxbz201309029
中图分类号：
学科分类号：
摘要：
In this study, an experimental thermoelectric generator test platform was constructed. The experiments were carried out to examine the influences of contact pressure on thermoelectric generator. Temperature, open circuit voltage, resistance and maximum power output were characterized as a function of generator performance. Throughout the experiments, it can be seen that when the hot side and cold side temperatures of thermoelectric generator are homogeneons, the open circuit voltage and maximum power output increase with the increase of pressure, but their increase rates get smaller. Furthermore, at a certain temperature, the internal contact resistance of thermoelectric generator seems insensitive to contact pressure. Finally, the transient response characteristics of hot side and cold side temperatures seem insensitive to contact pressure, while the transient response rate of open circuit voltage accelerates with increasing pressure. It is proved that contact pressure has great effect on the performance of thermoelectric generator.
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页码：9 / 14
页数：5
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