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http://dx.doi.org/10.6110/KJACR.2013.25.3.156

An Experimental Study on the Cooling and Heating Performance of a Residential Ground Source Heat Pump System  

Kong, Hyoung Jin (Geothermal Energy Education Center, Hoseo University)
Kang, Sung Jae (Renewable Environmental Division, Shinsung Engineering)
Yun, Kyoung Sik (Graduate School of Mechanical Engineering, Hoseo University)
Lim, Hyo Jae (Department of Mechanical Engineering, Hoseo University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.25, no.3, 2013 , pp. 156-163 More about this Journal
Abstract
Ground Source Heat Pump (GSHP) systems utilize geothermal energy as a thermal source or sink, for heating, cooling and domestic hot water. It is well known that GSHP is environmentally friendly, and saves energy dramatically. For this reason, many investigative researches have been conducted on commercial and governmental buildings. However, studies on residential GSHP are few, because of the small capacity and cost. In this study, we experimented with the characteristic performance of heating, cooling and seasonal performance factor for a residential GSHP system, which consisted of two 180 m deep u-tube ground heat exchangers, a heat pump and measurement instruments. The installed capacity of the heat pump was 5RT, and the conditioning area was $62.23m^2$. From the experimental results, the cooling COP of the heat pump was 4.13, and the system COP was 3.51, while the CSPF was 3.32. On the other hand, the heating COP of the heat pump was 3.87, and the system COP was 3.39, while the HSPF was 3.39. Also, in-situ cooling COP and capacity were 93.7% and 96.4% compared with the EWT certification data, respectively, and that of heating were 98.3% and 95.7%, respectively.
Keywords
Ground source heat pump; Coefficient of performance; Seasonal performance factor; Heat rejection rate; Heat extraction rate;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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