| Title |
An Experimental Study of Ground Water Source Two Well Type Geothermal Heat Pump System |
| Authors |
임효재(Hyo Jae Lim) ; 권정태(Jeong-Tae Kwon) ; 김창업(Chang Eob Kim) ; 공형진(Hyoung Jin Kong) ; 박성구(Seong Koo Park) |
| Keywords |
지하수 열원 열펌프 ; 복수정 ; 성능계수 ; 수위하강 ; 정적수위 Ground water source heat pump ; Two well ; COP ; Drawdown ; Static water level |
| 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 50RT system of two well type ground water heat pump system was used. As a result, static water level was -7m and the level during the heating operation was -32m, cooling operation was -40m. The initial static water level recovered within 48hrs. The temperature of ground water is 15.6℃ for heating season and 16.2℃ 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. |