Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27598
Title: Experimental studies on a ground coupled heat pump with solar thermal collectors for space heating
Authors: Chen, X
Yang, H 
Lu, L 
Wang, J
Liu, W
Keywords: Borehole temperature
Experiment
Geothermal applications
Heat pumps
Heating
Operation modes
SAGCHP
Solar thermal applications
Issue Date: 2011
Publisher: Pergamon Press
Source: Energy, 2011, v. 36, no. 8, p. 5292-5300 How to cite?
Journal: Energy 
Abstract: 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°03', long. E114°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.
URI: http://hdl.handle.net/10397/27598
ISSN: 0360-5442
EISSN: 1873-6785
DOI: 10.1016/j.energy.2011.06.037
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