계절별 운전조건에 따른 수직형 지열교환기의 깊이별 지중온도 변화에 대한 사례 연구
A Case Study on the Seasonal Temperature Variations in Depth of a Vertically-installed Geothermal Heat Exchange Pipe
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
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 not 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℃. 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.
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 not 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℃. 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.
참고문헌 (6)
- Stephen P. Kavanaugh, "Ground-Source Heat Pumps : Design of Geothermal Systems for Commercial and Institutional Buildings", ASHRAE (1997)
- GTES Hokkaido University, "Geothermal heat Pump System, Ohmsha", ~ (2007)
- 정영만, "지중열전도도 측정과 지중열교환기의 열확산 특성 분석", 설비공학 논문집, 20(11), pp.739~745 (2008), 대한설비공학회
- 유형규, "PHC 파일 기초를 이용한 지중 열교환기 개발 및 성능 평가", 한국태양에너지학회 논문집, 28(5), pp.56~64 (2008), 한국태양에너지학회
- 우상우, "CFD 해석에 의한 수직형 지열교환기의 성능예측", 한국태양에너지학회 논문집, 27(3), pp.117~126 (2007), 한국태양에너지학회
- 황광일, "복합용도 건물에 적용된 400RT급 수직형 지열시스템의 입주전 성능평가", 한국태양에너지학회 논문집, 28(3), pp.7~14 (2008), 한국태양에너지학회