Performance optimization of a class of combined thermoelectric heating devices

被引：72

作者：

Chen, LinGen ^{[1
,2
]}

Meng, FanKai ^{[3
]}

Ge, YanLin ^{[1
,2
]}

Feng, HuiJun ^{[1
,2
]}

Xia, ShaoJun ^{[1
,2
]}

机构：

[1] Wuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China

[2] Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Peoples R China

[3] Naval Univ Engn, Coll Power Engn, Wuhan 430033, Peoples R China

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2020年 / 63卷 / 12期

基金：

中国国家自然科学基金;

关键词：

thermoelectric generator; thermoelectric heat pump; combined thermoelectric device; heat transfer; finite time thermodynamics; performance optimization; ENTROPY GENERATION MINIMIZATION; TRANSFER SURFACE-AREA; ENTRANSY DISSIPATION MINIMIZATION; DUAL-MILLER CYCLE; EXERGY ANALYSIS; ECOLOGICAL OPTIMIZATION; THERMODYNAMIC ANALYSIS; OPTIMUM ALLOCATION; COP OPTIMIZATION; RECOVERY SYSTEM;

D O I：

10.1007/s11431-019-1518-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A detailed model of thermally-driven combined thermoelectric (TE) heating device is established. The device consists of two-stage TE heat pump (TTEH) and two-stage TE generator (TTEG) with four external heat exchangers (HEXs). Both internal losses and external heat transfer irreversibilities are considered in the model. The heating capacity and the coefficient of performance (COP) of the device are improved through numerical optimization, which is of great significance to the application of the device. The distribution of the total TE element number among four TE devices and the distribution of the total external heat conductance among the four external HEXs are optimized. The results show that both the reservoir temperatures of TTEG and TTEH have significant influences on the performance and the corresponding optimum parameters of the device. The COP can reach 0.14 after optimization when the temperature difference of heat source is 150 K and the temperature difference of heating is 10 K.

引用

页码：2640 / 2648

页数：9

共 124 条

[1] Comparative performance analyses of molten carbonate fuel cell-alkali metal thermal to electric converter and molten carbonate fuel cell-thermo-electric generator hybrid systems [J].