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Numerical Analysis on the Heat Transfer Characteristics of HDPE Pipe with the Variation of Geometries for Ground Loop Heat Exchangers
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지중열교환기의 고밀도폴리에틸렌 배관 형상에 따른 열전달 성능 특성에 대한 수치해석적 연구

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Type
Academic journal
Author
Kwesi Mensah (한밭대학교) Jong Min Choi (한밭대학교)
Journal
Korean Society for Geothermal and Hydrothermal Energy Transactions of the Korean Society for Geothermal and Hydrothermal Energy Vol.12 No.4 KCI Accredited Journals
Published
2016.12
Pages
33 - 39 (7page)

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Numerical Analysis on the Heat Transfer Characteristics of HDPE Pipe with the Variation of Geometries for Ground Loop Heat Exchangers
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A ground source heat pump (GSHP) system is recommended as a heating and cooling system to solve the pending energy problem in the field of air conditioning, because it has the highest efficiency. However, higher initial construction cost works as a barrier to the promotion and dissemination of GSHP system. In this study, numerical analysis on the characteristics of high density polyethylene (HDPE) pipe with spiral inside was executed. The heat transfer and flow characteristics of it were compared with those of a conventional smooth HDPE pipe. The heat transfer coefficient and pressure drop of the spiral HDPE 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 represented similar values of heat transfer coefficient and pressure drop to the smooth HDPE pipe. The lower flow rate of the spiral HDPE pipe comparing with it of the smooth HDPE pipe is estimated to reduce the length of the ground loop heat exchanger.

Contents

Abstract
1. 서론
2. 수치해석
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2017-533-002166811