Experimental study on the operating characteristics of a novel photovoltaic/thermal integrated dual-source heat pump water heating system
Experimental study on the operating characteristics of a novel photovoltaic/thermal integrated dual-source heat pump water heating system
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新型光热一体化双源热泵热水系统运行特性实验研究
DOI：
10.1016/j.applthermaleng.2015.10.126
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发表时间：
2016-02
影响因子：
6.4
通讯作者：
Wang Tan
中科院分区：
文献类型：
--
作者：
Qu Minglu;Chen Jianbo;Nie Linjie;Li Fengshu;Yu Qian;Wang Tan
提出了一种新型的太阳能光伏/光热（PV/T）集成双源热泵（DSHP）热水系统。该系统利用太阳能光伏热系统中的循环水和空气源为居民提供生活热水，同时降低PV/T板的冷却水温度，提高电能转换效率。在上海建立了一个实验性的PV/T集成DSHP机组，以检查其性能。研究了水-水模式下蒸发器入口温度和热水温度以及空气-水模式下室外温度对系统性能的影响。对水-水模式和空气-水模式进行了能量分析。评价了PV/T板的冷却效果和光伏效率。结果表明，使用水侧蒸发器时，PV/T板工作温度可降低45 °C，电转换效率可盈余10.3%。
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 °C, and the electrical conversion efficiency yielded a surplus of 10.3%.
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