Experimental study of thermal performances of the sloar photovoltaic-thermal hybrid system

Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (s1): 22-26.

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Experimental study of thermal performances of the sloar photovoltaic-thermal hybrid system

WU Xingying¹, GONG Guangcai², WANG Chenguang², YU Qiji¹, GONG Jianwen¹

1. College of Municipal and Mapping Engineering, Hunan City University, Yiyang 413000, Hunan, China;
2. College of Civil Engineering, Hunan University, Changsha 410082, Hunan, China

Online:2015-10-20 Published:2015-09-20

太阳能光电-热一体化系统的热力性能实验研究

吴兴应¹, 龚光彩², 王晨光², 喻骐骥¹, 龚建文¹

1. 湖南城市学院市政与测绘工程学院, 湖南益阳 413000;
2. 湖南大学土木工程学院, 湖南长沙 410082

通讯作者: 吴兴应(1976—),男,硕士,讲师。E-mail wuxyingde@126.com。
作者简介:吴兴应(1976—),男,硕士,讲师。E-mail wuxyingde@126.com。
基金资助:
湖南省教育厅一般项目(13C111)及湖南城市学院大学生科技创新项目(2014xs26)。

Abstract

Abstract: Heat pipe can be applied on the solar photovoltaic-thermal (PV-T) hybrid system to decrease the working temperature of solar cell of which, the photoelectric efficiency of which is increased, and the some of the heat energy is recycled at the same time so that the total energy utilization efficiency of the system is improved greatly.A thermal theoretical model of the PV-T system was established,and the solar-thermal hybrid experimental device with heat pipe is developed.Some related experiments are conducted including the tests of PV efficiency and heat transfer efficiency and exergy efficiency.The results show that the photoelectric efficiency is about 4.7%,the comprehensive efficiency of the system is about 49%, and the maximum exergy efficiency is about 8%.The overall efficiency of this system is higher than that of a pure PV system.Through comparative performance evaluation of several kinds of PV-T system,the heat pipe type PV-T system shows a significant energy-saving potential.Some energy-saving suggestions were also put forward.

Key words: solar photovoltaic-thermal hybrid, thermal performances, photoelectric efficiency, thermal efficiency, exergy efficiency

摘要： 将热管应用于太阳能光电-热一体化(PV-T)系统,在进行光电转换的同时,降低了太阳能电池的工作温度而使其光电效率提高,还回收了部分热能,可以大大提高系统的能量利用效率。研制了热管式太阳能光电-热一体化实验装置,建立了系统的热力性能计算的数学模型,对该实验装置系统进行了光电效率、热效率的测试,并对系统热力性能包括能量效率、(火用)效率进行了计算和分析。实验结果显示:系统的光电效率为4.7%左右,系统的综合效率为49%左右,(火用)效率最大为8%左右,比单独利用太阳能光伏发电系统的效率有显著提高。综合比较了几种太阳能光电一体化系统,该热管式PV-T系统有较好的节能效果,并对系统提出了优化和节能建议。

关键词: 太阳能光电-热一体化, 热力性能, 光电效率, 能量效率, (火用)效率

WU Xingying, GONG Guangcai, WANG Chenguang, YU Qiji, GONG Jianwen. Experimental study of thermal performances of the sloar photovoltaic-thermal hybrid system[J]. Chemical Industry and Engineering Progree, 2015, 34(s1): 22-26.

吴兴应, 龚光彩, 王晨光, 喻骐骥, 龚建文. 太阳能光电-热一体化系统的热力性能实验研究[J]. 化工进展, 2015, 34(s1): 22-26.

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Experimental study of thermal performances of the sloar photovoltaic-thermal hybrid system

太阳能光电-热一体化系统的热力性能实验研究

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