Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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A Case Study on the Seasonal Temperature Variations in Depth of a Vertically-installed Geothermal Heat Exchange Pipe

계절별 운전조건에 따른 수직형 지열교환기의 깊이별 지중온도 변화에 대한 사례 연구

  • 황광일 (한국해양대학교 기계정보공학부) ;
  • 신동걸 (한국해양대학교 대학원) ;
  • 김중헌 (삼성물산 건설부문 친환경에너지연구소) ;
  • 신승호 (삼성물산 건설부문 친환경에너지연구소)
  • Published : 2009.06.30
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Abstract

To estimate the operating performances of the geothermal heat exchange pipe(GHEX), GHEXs of 400RT geothermal system were measured and analyzed through a year. The followings are the results. The temperature of 2 GHEXs installed 4m apart was fluctuated very similarly. When the geothermal system is nor operating or is operating as heating mode, the temperature of G.L.-170m was always higher than G.L.-70m's. But it reversed when the geothermal system is operating as cooling mode. And through a year, it has been observed that the temperature of G.L.-170m is increased approximately $1.5^{\circ}C$. With previously mentioned results, the heat transfer capacity of G.L.-70m's geological stratum is estimated as higher than that of the G.L.-170m.

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References

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