| Title |
A Study on the Estimation of Soil Formation Thermal Conductivities and Borehole Resistances with One-Dimensional Numerical Model and In-Situ Field Tests |
| Keywords |
Borehole heat exchanger ; 보어홀 열교환기 ; 1-Dimensional model ; 1차원 모델 ; Thermal conductivities of soil formations ; 지중열전도율 ; Borehole resistances ; 보어홀 저항 |
| Abstract |
A one-dimensional numerical model coupled with parameter estimation is used to predict the effective thermal conductivities of soil formations and borehole resistances from in situ field test data. In this application a new method of using initial ignoring time(IIT) obtained from error estimation is tried and turned out to be successful in determining soil thermal conductivities. This method is used for single-U and double-U borehole system. The results of this method are compared and agreed well with those of existing software(GPM) in the analysis of single-U borehole data. In the analysis of double-U borehole data this method seems to be better in predicting soil and borehole properties. |