Design and Experimental Testing of a Ground Source Heat Pump System Based on Energy-Saving Solar Collector
Publication: Journal of Energy Engineering
Volume 142, Issue 3
Abstract
A ground source heat pump system can cause the fluctuation of the underground temperature field in the working process. If this system is used for a long time, the “heat accumulation” phenomenon will occur, the unit coefficient of performance (COP) value will be reduced, and the system energy consumption will be increased. In order to solve this problem, a new type of heat storage of solar and ground source heat pump coupling system was developed in this paper. The solar collector system can achieve high quality heating seasonal storage, i.e., high quality heating in winter and high quality cooling in summer. The falling film evaporation process was adopted to obtain efficient refrigeration. The experimental results show that the buried tube heat exchanger and the intermittent heat storage tank can operate well in the system. In addition, the COP value of the system is 6.96, which demonstrates that the working efficiency of the designed solar ground source heat pump system is high. The working efficiency and service life of the ground source heat pump were improved. Therefore, the new system has remarkable economic benefit.
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Published In
Journal of Energy Engineering
Volume 142 • Issue 3 • September 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Dec 17, 2014
Accepted: Apr 30, 2015
Published online: Jun 16, 2015
Discussion open until: Nov 16, 2015
Published in print: Sep 1, 2016
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