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An Experimental Study of Ground Water Source Two Well Type Geothermal Heat Pump System  

Lim, Hyo-Jae (Department of Mechanical Engineering, Hoseo University)
Kwon, Jeong-Tae (Department of Mechanical Engineering, Hoseo University)
Kim, Chang-Eob (Department of Electrical Engineering, Hoseo University)
Kong, Hyoung-Jin (Geothermal Energy Education Center)
Park, Seong-Koo (Geotech Inc.)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.21, no.8, 2009 , pp. 468-474 More about this Journal
Abstract
Ground water source heat pump system is the oldest one of the ground source heat pump systems. Despite of this, little formal design information has been available until recently. The important design parameters for open system are the identification of optimum ground water flow, heat exchanger selection and well pump. In this study, the capacity of 50 RT system of two well type ground water heat pump system was used. As a result, static water level was -7 m and the level during the heating operation was -32 m, cooling operation was -40 m. The initial static water level recovered within 48 hrs. The temperature of ground water is $15.6^{\circ}C$ for heating season and $16.2^{\circ}C$ for cooling season and does not depend on the outdoor temperature. Operation efficiency of the system shows that, COP 3.1 for heating and COP 4.2 for cooling.
Keywords
Ground water source heat pump; Two well; COP; Drawdown; Static water level;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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