Frontiers in Energy
>> 2014,
Volume 8,
Issue 3
doi:
10.1007/s11708-014-0310-1
RESEARCH ARTICLE
Evaluation of the performance of a centralized ground-water heat pump system in cold climate region
1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.2. China Aerospace Construction Group Co., Ltd., Beijing 100071, China
Accepted: 2014-07-25
Available online: 2014-09-09
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Abstract
The aim of this study is to evaluate the performance of a centralized open-loop ground-water heat pump (GWHP) system for climate conditioning in Beijing with a cold climate in China. Thus, a long-time test was conducted on a running GWHP system for the heating season from December 2011 to March 2012. The analysis of the testing data indicates that the average heat-pump coefficient of performance (COP) and the COP of the system (COPs) are 4.27 and 2.59. The low value and large fluctuation in the range of COP are found to be caused by the heat transfixion in the aquifer and the bypass in the circulation loop. Therefore, some suggestions are proposed to improve the performance for GWHPs in the cold climate region in China.
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