Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
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Performance and Initial Cost Analysis on Various Type of Ground Heat Exchangers

지중 열교환기 종류에 따른 성능 및 시공비 분석

  • Lee, Seung-Rae (Department of Civil and Environmental Engineering, KAIST) ;
  • Yoon, Seok (Department of Civil and Environmental Engineering, KAIST) ;
  • Cho, Nam-Hyun (Research & Development Group, Incheon International Airport Co.) ;
  • Kim, Min-Jun (Department of Civil and Environmental Engineering, KAIST) ;
  • Go, Gyu-Hyun (Department of Civil and Environmental Engineering, KAIST)
  • 이승래 (KAIST 건설및환경공학과 대학원) ;
  • 윤석 (KAIST 건설및환경공학과 대학원) ;
  • 조남현 (인천국제공항공사 공항연구소) ;
  • 김민준 (KAIST 건설및환경공학과 대학원) ;
  • 고규현 (KAIST 건설및환경공학과 대학원)
  • Received : 2014.01.20
  • Accepted : 2014.02.24
  • Published : 2014.03.31
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Abstract

This paper presents a preliminary experimental and computational study on the evaluation of thermal performance and initial cost of U, W and coil type ground heat exchangers (GHEs). Heat exchange rate of the individual GHE was evaluated from the thermal resperformance test (TPT) results, and the construction cost was also calculated. For more information, GLD (ground loop design) simulations of various piping size are carried out. From simulation results, the optimized GHE was suggested based on the thermal performance and construction cost as well. Besides, the required borehole length of U and W type GHEs was calculated considering a real construction condition using GLD program.

Keywords

References

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