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이세균(李世均) 교수(敎授) 정년퇴임기념특집(停年退任紀念特輯) : 지중 열전도율이 보어홀 길이에 미치는 영향에 관한 연구
이세균 ( Se Kyoun Lee ),노정근 ( Jeong Geun Ro ) 충북대학교 산업과학기술연구소 2010 산업과학기술연구 논문집 Vol.24 No.2
The effect of soil thermal conductivity on the borehole length is studied. In performing this work the solution of line source model is used. A new concept, (L/Q) , borehole length per unit geothermal load ratio, is developed to compare the effect of soil thermal conductivity on the borehole length. It is shown that (L/Q) is a function of soil thermal conductivity(K) and onlyvery weak function of borehole thermal resistance(R(b)). There is no functional dependency of the (L/Q) on the temperature(L/Q). Thus it is easy to estimate the effect of K on the borehole length with (L/Q) . The result of this study is also examined with EED analysis.