Performance optimization for a two-stage thermoelectric heat-pump with internal and external irreversibilities

被引：68

作者：

Chen, Lingen ^{[1
]}

Li, Jun ^{[1
]}

Sun, Fengrui ^{[1
]}

Wu, Chih ^{[2
]}

机构：

[1] Naval Univ Engn, Postgrad Sch, Wuhan 430033, Peoples R China

[2] USN Acad, Dept Mech Engn, Annapolis, MD 21402 USA

来源：

APPLIED ENERGY | 2008年 / 85卷 / 07期

关键词：

two-stage semiconductor thermoelectric heat-pump; finite-time thermodynamics; non-equilibrium thermodynamics; optimization;

D O I：

10.1016/j.apenergy.2007.10.005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A model of the behaviour of a two-stage semiconductor thermoelectric heat-pump with external heat transfer is devised. Performance of the heat-pump, assuming Newton's beat-transfer law, is analyzed using the combination of finite-time thermodynamics and non-equilibrium thermodynamics. The analytical formula describing the heating load versus working electric-current, and the coefficient of performance (COP) versus working electric-current are derived. For the fixed total number of thermoelectric elements, the ratio of number of thermoelectric elements of the top stage to the total number of thermoelectric elements is also optimized for maximizing the heating load and the COP of the thermoelectric heat-pump. The effects of design factors on the performance are analyzed. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：641 / 649

页数：9

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