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A Case Study on the Seasonal Temperature Variations in Depth of a Vertically-installed Geothermal Heat Exchange Pipe  

Hwang, Kwang-Il (Dept. of Mechanical and Information Engineering, Korea Maritime University)
Shin, Dong-Keol (Graduate School of Korea Maritime University)
Kim, Joong-Hun (Samsung C&T)
Shin, Seung-Ho (Samsung C&T)
Publication Information
Journal of the Korean Solar Energy Society / v.29, no.3, 2009 , pp. 45-50 More about this Journal
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.
Keywords
Geothermal System; Geothermal Heat Enchanger; Gound Temperature; Season; Performance Evaluation;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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