Thermal response of energy piles with embedded tube and tied tube

被引：0

作者：

Liu H.-L. ^{[1
,2
,3
]}

Wu D. ^{[1
,2
]}

Kong G.-Q. ^{[2
,3
]}

Wang C.-L. ^{[1
,2
]}

Charles W.W.N. ^{[4
]}

机构：

[1] College of Civil Engineering, Chongqing University, Chongqing

[2] Key Laboratory of New Technology for Construction of Cities in Mountain area of Ministry of Education, Chongqing University, Chongqing

[3] College of Civil and Transportation Engineering, Hohai University, Nanjing, 210098, Jiangsu

[4] Civil Engineering Department, Hong Kong University of Science and Technology

来源：

Yantu Lixue/Rock and Soil Mechanics | 2017年 / 38卷 / 02期

基金：

中国国家自然科学基金;

关键词：

COMSOL software; Energy pile; Model test; Thermal response; Tube buried type;

D O I：

10.16285/j.rsm.2017.02.004

中图分类号：

学科分类号：

摘要：

The energy pile with embedded steel tube is a new type of ground source heat pump (GSHP) technique in the form of pipe-coupled pile. However, there are few studies focused on thermal response of this new pipe form. Experimental test and numerical simulation were conducted to study the heat transfer from tube to steel tube, to concrete, and to soil of energy piles with single U-shaped embedded steel tube. Temperature variations of surrounding soil and pile shaft under temperature loading of heating-cooling cyclic were measured. The thermal response of the ordinary single U-shaped heat exchanger energy pile with tied tube was also tested for comparative analysis. Finally, the applicability of energy pile with embedded steel tube was analyzed. The results show that the thermal response of energy pile with embedded steel tube is slightly lower than that of energy pile with tied tube. The final temperature of surrounding soil and pile shaft of two types of energy pile varies 23% and 16% in summer, and 14% and 18% in winter. © 2017, Science Press. All right reserved.

引用

页码：333 / 340

页数：7

共 16 条

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