Experimental study of a novel photovoltaic solar-assisted heat pump/loop heat-pipe (PV-SAHP/LHP) system

International Conference on Energy Engineering and Environmental Protection 2016

能源学;生态环境科学

Zhang, Tao^1 ; Pei, Gang^2 ; Zhu, Qunzhi^1 ; Ji, Jie^2

School of Energy and Mechanical Engineering, Shanghai University of Electric Power, #2103 Pingliang Road, Shanghai City, China^1

Department of Thermal Science and Energy Engineering, University of Science and Technology of China, #96 Jinzhai Road, Hefei City, Anhui Province, China^2

关键词: Combined system;    Loop Heat Pipe;    Photo-voltaic efficiency;    Photovoltaic/thermal;    Solar assisted heat pump;    Solar assisted heat pump systems;    Switch operation;    Working fluid;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/52/1/012017/pdf
DOI  :  10.1088/1742-6596/52/1/012017

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A prototype of a photovoltaic solar-assisted heat-pump/loop heat-pipe system (PV-SAHP/LHP) was constructed in this paper. The system was a combination of photovoltaic solar-assisted heat pump system (PV-SAHP) and loop heat pipe photovoltaic/thermal (LHP-PV/T) system. The combined system can carry out with two modes but using the same working fluid, and the two modes can switch operation freely. R600a was employed as the working fluid, and system performance under different working mode was presented in this paper. The results show that the day average photothermal efficiency & photovoltaic efficiency can reach to 43.6% & 11.3% under LHP-PV/T working mode compared with that of 57.5% & 12.1% under PV-SAHP working mode: Besides that, a day average COP of 3.66 was obtained under PV-SAHP working mode.