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1차원 모델에 의한 지중열교환기의 열거동 해석

A Study on the Thermal Behavior of Vertical Borehole Heat Exchanger with 1-Dimensional Model

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참고문헌

키워드

주제분류기타공학

초록

Abstract

A one-dimensional heat transfer model for the vertical borehole system is derived in this study to predict the thermal behavior of the system and surrounding soil. In this model the U-tube is replaced with one effective tube of effective diameter which is surrounded by concentric grout region. All thermal resistances of borehole are counted in the grout region with effective thermal conductivity of grout. Effective thermal conductivity of grout and sand are calculated through parameter estimation. The validity of this model is accomplished through comparison of the predicted temperature profiles of the model with experimental data

참고문헌 (10)

  1. "Theory of the Ground Pipe heat Source for the Heat Pump", pp.119~47 122 (1948)
  2. "TED-A Mobile Equipment for Thermal Response Test" (1996)
  3. "S.P. 2000", pp.1118~ (2000), Investigation of Methods for Determining Soil and Rock Formation Thermal Properties from Short-Term Field Tests
  4. "Heat Conduction with Engineering" (1954), McGraw-Hill.
  5. "Simulation of Vertical U-tube Ground-cupled Heat Pump Systems using the Cylindrical Heat Source Solution", 97, pp.287~1 295 (1991)
  6. "P. Thermal Analysis of Heat Extraction Boreholes", dept. of math. physics (1987)
  7. "Ground Heat Storage", dept. of math. physics (1991)
  8. "Simulation of a Single Vertical U-tube Ground Heat Exchanger in an Infinite Medium", 103(2), pp.651~\659 (1997)
  9. "Determining Effective Soil Formation Thermal Properties from Field Data Using a Parameter Estimation Technique", Vol. 105(1), pp.458~466 (1999)
  10. "Determining Effective Soil Formation Thermal Properties from Field Data Using a Parameter Estimation Technique", pp.458~466 (1999)

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