›› 2009, Vol. 30 ›› Issue (4): 933-937.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Working mechanism and application of heat exchanger piles

YU Chuang1,PAN Lin-you1,LIU Song-yu2,CAI Yuan-qiang1   

  1. 1. College of Architecture and Civil Engineering, Wenzhou University, Wenzou 325035, China; 2. Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
  • Received:2007-08-29 Online:2009-04-10 Published:2011-01-30

Abstract:

With combined conventional piles and ground source heat pump, a new type of pile, heat exchanger pile, is presented. Firstly, the concept and working mechanism of heat exchanger pile are presented; and the relevant method for classification is come up with. Loops of plastic tubes for heat exchanger are inserted into a pile, which are connected with air-conditional pipe system. The heat transfer from heat exchanger pile and the ground system takes place via fluid in heat exchangers, pile, the surrounding soil and ground water. Heat exchanger piles act as double functions, conventional pile and the borehole in ground source heat pump. Finally, the current application state of heat exchanger piles and the key issues for research on this field are described. In a word, this innovative method is significantly more cost-effective, environment-friendly and energy-saving technology, which is worth applying widely.

Key words: heat exchanger piles, ground source heat pump, thermal interaction between pile and soil, shallow geothermal energy

CLC Number: 

  • TK 529
[1] JIANG Qiang-qiang, JIAO Yu-yong, LUO Jin, WANG Hao, . Review and prospect on heat transfer and bearing performance of energy piles [J]. Rock and Soil Mechanics, 2019, 40(9): 3351-3362.
[2] ZHAO Jun , LIU Quang-sheng , ZHANG Cheng-yuan . Study of thermo-hydro-mechanical coupling model in U-shaped GSHP [J]. , 2012, 33(S2): 1-006.
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