논문 국내 국내전문학술지(KCI급) 지중열교환기의 고밀도폴리에틸렌 배관 형상에 따른열전달 성능 특성에 대한 수치해석적 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2016-12
- 저자명 최종민
- 학술지명 한국지열에너지학회논문집
- 발행처명 한국지열에너지학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 2
홈페이지논문 초록 (Abstract)
A ground source heat pump (GSHP) system is recommended as a heating and cooling system to solve the pending energy problem in thefield of air conditioning, because it has the highest efficiency. However, higher initial construction cost works as a barrier to the pr omotion and dissemination of GSHP system. In this study, numerical analysis on the characteristics of high density polyethylene (HDPE) pi pe with spiral inside was executed. The heat transfer and flow charac teristics of it were compared with those of a conventional smooth HDPE pipe. The heat transfer coefficient and pressure drop of the spiral H DPE pipe were higher than those of the smooth HDPE pipes at the same fluid flow rate. By decreasing the flow rate, the spiral HDPE pipe repr esented similar values of heat transfer coefficient and pressure drop to the smooth HDPE pipe. The lower flow rate of thespiral HDPE pip e comparing with it of the smooth HDPE pipe is estimated to reduce the length of the ground loop heat exchanger.