Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
권호 표지

A Study on Horizontal Ground Source Heat Pump Systems

수평형 지열원 히트펌프 시스템에 관한 연구

  • 박용정 (금오공과대학교 대학원 기계공학과) ;
  • 김경훈 (금오공과대학교 기계공학부)
  • Published : 2006.09.30
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Abstract

Ground source heat pump (GSHP) or geothermal heat pump systems (GHPs) are recognized to be outstanding heating and cooling systems. Most of GSHP systems installed and studied in korea are vertical GSHP systems. A horizontal GSHP system was installed in greenhouse and investigated for the performance characteristics. The results of the study showed that the heating coefficient of performance of the heat pump was 3.64 and the overall heating coefficient of performance of the system was 3.31. The pumping power was obtained as 28.0 W/kW and the required ground heat exchanger length was 53.3 m/kW of rejection heat of condenser. The heat extraction rate was, on average, 14.58 W/m of ground heat exchanger length and trench length is 27.7 m/kW of rejection heat of condenser.

지열원 히트펌프 시스템은 난방과 냉방부분에서 두드러진 관심을 보이고 있다. 국내에 설치된 지열원 히트펌프 시스템의 대부분은 수직형 방식으로 연구대상 또한 수직형이 주류이다. 본 연구에서는 수평형 지열원 시스템을 시설하우스에 설치하여 성능을 조사하였다. 연구결과, 히트펌프만 고려한 난방성능계수는 3.64이고 지열순환펌프를 포함한 성능계수는 3.31로 나타났다. 응축기 제거열에 대한 순환펌프의 동력은 28.0 W/kW이고, 열교환기길이는 53.3m/kW였다. 지중으로부터의 평균채열량은 14.58 W/m이고, 응축열에 대한 열교환기가 매립된 트렌치길이는 27.7m/kW였다.

Keywords

References

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