Browse > Article

Numerical Study of Heat Transfer Efficiency, Performace and Mechanical Behavior induced by Thermal Stress of Energy Pile  

Min, Sun-Hong (School of Civil, Environmental and Architectural. Engineering, Korea University)
Lee, Chul-Ho (School of Civil, Environmental and Architectural. Engineering, Korea University)
Park, Moon-Seo (School of Civil, Environmental and Architectural. Engineering, Korea University)
Koh, Hyung-Seon (Samsung C&T Corporation)
Choi, Hang-Seok (School of Civil, Environmental and Architectural. Engineering, Korea University)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.6, no.2, 2010 , pp. 9-14 More about this Journal
Abstract
The ground source heat pump system is increasingly being considered as an alternative to traditional heating and cooling systems to reduce the emission of ground house gases. In this paper, A series of numerical analysis for energy piles has been performed focusing on heat transfer efficiency, performance and thermal stress. Results of numerical analyses for the W-shape type shows more efficient heat exchange transfer than the coil type. From results of the thermo-mechanical analysis, it is shown that the concentration of thermal stress occurs around the circulating pipe and the interfaces between different materials. The largest deformation caused by thermal stress is observed in the energy pile.
Keywords
Energy pile; Heat transfer; Thermal stress; EWT; W-shape type; Coil type;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Yi Man, HongXing Yang, Nairen Diao, Junhong Liu, Zhaohong Fang, 2010, A new model and analytical solutions for borehole and pile ground heat exchangers, International Journal of Heat and Mass Transfer, Vol. 53, pp. 2593-2061.   DOI   ScienceOn
2 Liu Jun, Zhang Xu, Gao Jun, Yang Jie., 2009, Evaluation of heat exchange rate of GHE in geothermal heat pump system, Renewable Energy 34, pp. 2898-2904.   DOI   ScienceOn
3 Jun Gao, Xu Zhang, Jun Liu, Kuishan Li, Jie Yang, 2008, Numerical and experimental assessment of thermal perrormance of vertical energy piles: An application, Applied Energy, Vol. 85, pp. 901-910.   DOI   ScienceOn
4 백성권, 2004, 중공 말뚝을 이용한 지열 냉난방 시스템 개발에 관한 연구, 박사학위논문, 부산대학교
5 BLN, 2000, BNL Greut Formula Revives NJ Heat pump Industry, Wins Award, Brookhaven Bulletin, Vol. 54 No.23
6 Engineeringtoolbox.com, 2005
7 Yujin Nam, Ryozo Ooka, Suckho Hwang, 2008, Development of a numerical model to predict heat exchang rates for a ground source heat pump system, Energy and Building, Vol. 40, pp. 2113-2140.
8 Yassuhiro Hamada, Hisashi Saitoh, Makoto Nakamura, Hideki Kubota, Kiyoshi Ochifuji, 2007, Field perrormance of an energy pile system for space heating, Energy and Building, Vol.39, pp.517-524.   DOI   ScienceOn
9 유형규, 2008, PHC 파일 기초를 이용한 지중 열교환기 개발 및 성능 평가, 한국태양에너지학회 논문집, Vol. 28, No. 5, pp. 56-64.   과학기술학회마을