Thermal analysis of a high concentration photovoltaic/thermal system

被引：39

作者：

Chen, Haifei ^{[1
]}

Ji, Jie ^{[1
]}

Wang, Yunfeng ^{[1
]}

Sun, Wei ^{[1
]}

Pei, Gang ^{[1
]}

Yu, Zhi ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei City, Anhui Province, Peoples R China

来源：

SOLAR ENERGY | 2014年 / 107卷

基金：

国家高技术研究发展计划(863计划);

关键词：

Photovoltaic/thermal; High concentration ratio; Thermal analysis; Triple-junction solar cells; SOLAR COLLECTORS; PERFORMANCE; DESIGN;

D O I：

10.1016/j.solener.2014.05.043

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：

This paper presents a solar photovoltaic/thermal (PV/T) system with triple-junction solar cells. The essential components of the system are a concentrator of high concentration ratio, a PV/T module and a tracking device. Plane-mirrors array structure is applied to the concentrator, which can provide PV/T module with a uniform light intensity distribution and an adjustable concentration ratio. The PV/T module is an integration of triple-junction solar cells and a heat exchange device, where the heat from triple-junction solar cells is collected and transported for thermal applications by fluid passing through. Considering both photovoltaic and thermal conversion, the total solar utilization efficiency is greatly increased. The simulation results show that the thermal conversion efficiency of this high concentration PV/T system in hybrid operation can achieve about 52%, which is approximately in agreement with the experimental result of 48%, meanwhile the theoretical photovoltaic conversion efficiency can reach 26%. The simulation results also reveal the effect of fluid flow rate on the thermal efficiency of high concentration PV/T system, which is quite opposite to that in non-concentration PV/T system. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：372 / 379

页数：8

共 20 条

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