首页|Experimental Analysis of Influencing Factors on Heat Exchange Efficiency of Cast-in Place Energy Piles

Experimental Analysis of Influencing Factors on Heat Exchange Efficiency of Cast-in Place Energy Piles

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The energy pile is a kind of building energy-saving technology using shallow geothermal energy,and its heat exchange performance is an important factor affecting its development.In this study,heat exchange tests were carried out on three full-size cast-in place energy piles,and the influence of various factors on the heat exchange amount and the heat exchange rate was analyzed.The following conclusions are drawn:(1) the heat exchange rate of the cast-in place energy pile is greatly affected by the inlet water temperature;(2) increasing the pile length can increase the heat exchange amount,but has little effect on improving the heat exchange rate;(3) the increase in the heat exchange amount by heat exchange pipes in series is not significant,and therefore the parallel-type heat exchange pipes should be considered in practical engineering;(4) the appropriate circulating water flow velocity gives the best heat exchange efficiency.

energy pilecast-in placeheat exchange amountheat exchange rate

CHEN Zhi、XIAO Yu、XIAO Henglin、QUE Mengke、SUN Yang

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School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China

National Natural Science Foundation of ChinaMajor Technological Innovation Projects of Hubei Province,ChinaYouth Science and Technology Research Program of Hubei Education Department,China

no 51808203no 2017AAA128no Q20181405

2020

东华大学学报(英文版)
东华大学

东华大学学报(英文版)

影响因子：0.091
ISSN：1672-5220
年,卷(期)：2020.37(1)
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