Experimental studies on a ground coupled heat pump with solar thermal collectors for space heating

被引：102
作者：
Chen Xi [1 ]
Yang Hongxing [1 ]
Lu Lin [1 ]
Wang Jinggang [2 ]
Liu Wei [3 ]
机构：
[1] Hong Kong Polytech Univ, Dept Bldg Serv Engn, Hong Kong, Hong Kong, Peoples R China
[2] Hebei Univ Engn, Handan, Peoples R China
[3] Hebei Acad Sci, Shijiazhuang, Peoples R China
来源：
ENERGY | 2011年 / 36卷 / 08期
关键词：
SAGCHP; Experiment; Heating; Operation modes; Borehole temperature; RESIDENTIAL BUILDINGS; PERFORMANCE ANALYSIS; SYSTEM; STORAGE; TEMPERATURE; SIMULATION; CHINA;
D O I：
10.1016/j.energy.2011.06.037
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents experimental studies on a solar-assisted ground coupled heat pump (SAGCHP) system for space heating. The system was installed at the Hebei Academy of Sciences in Shijiazhuang (lat. N38 degrees 03', long. E114 degrees 26'), China. Solar collectors are in series connection with the borehole array through plate heat exchangers. Four operation modes of the system were investigated throughout the coldest period in winter (Dec 5th to Dec 27th). The heat pump performance, borehole temperature distributions and solar colleting characteristics of the SAGCHP system are analyzed and compared when the system worked in continuous or intermittent modes with or without solar-assisted heating. The SAGCHP system is proved to perform space heating with high energy efficiency and satisfactory solar fraction, which is a promising substitute for the conventional heating systems. It is also recommended to use the collected solar thermal energy as an alternative source for the heat pump instead of recharging boreholes for heat storage because of the enormous heat capacity of the earth. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5292 / 5300
页数：9
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