Experimental study on the operating characteristics of a novel photovoltaic/thermal integrated dual-source heat pump water heating system

被引：60
|
作者：
Qu, Minglu [1 ]
Chen, Jianbo [1 ]
Nie, Linjie [1 ]
Li, Fengshu [1 ]
Yu, Qian [1 ]
Wang, Tan [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Environm & Architecture, 516 Jungong Rd, Shanghai, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2016年 / 94卷
基金：
中国国家自然科学基金;
关键词：
Photovoltaic-thermal; Dual-source heat pump; Electrical conversion efficiency; Experimental; PERFORMANCE EVALUATION; SOLAR;
D O I：
10.1016/j.applthermaleng.2015.10.126
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper proposed a novel solar photovoltaic/thermal (PV/T) integrated dual-source heat pump (DSHP) water heating system. This system used the circulating water in solar photovoltaic thermal system and air source to provide domestic hot water for domestic usage, and meanwhile decreased the cooling water temperature for the PV/T panel to improve the electrical conversion efficiency. An experimental PV/T integrated DSHP unit was established in Shanghai to examine its performance. The influences of the inlet temperature of the evaporator and the hot water temperature under water-water mode and the influence of the outdoor temperature under air-water mode on the system performance were studied. Energy analysis was conducted between water-water mode and air-water mode. The cooling effect and photovoltaic efficiency of the PV/T panel were evaluated. The results showed that when water side evaporator was used, the PV/T panel operating temperature can be decreased up to 45 degrees C, and the electrical conversion efficiency yielded a surplus of 10.3%. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：819 / 826
页数：8
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