Open AccessOperation mode and heat performance of energy drilled piles
Author(s) -
Shijun You,
Yitong Wang,
Peng Jiang
Publication year - 2021
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci2106553y
Subject(s) - pile , heat exchanger , foundation (evidence) , heat transfer , geothermal energy , geothermal gradient , computer simulation , environmental science , geotechnical engineering , materials science , geology , mechanical engineering , mechanics , engineering , physics , archaeology , geophysics , history
Energy pile takes a full use of shallow geothermal, the heat exchanger is buried in the foundation extract the ground heat source for heating and cooling of the upper building. Firstly, the geothermal potential of the region is calculated. Then, the heat transfer efficiency of pile foundation under different operation conditions is tested by field test. Finally, the numerical simulation software is used to analyze and compare the field measured results with the numerical simulation results to simulate the heat transfer efficiency of the heat exchange pile under different operation modes. The results shows the heat transfer efficiency of the double U connected tubes is suitbable used in drilled pile, and the heat transfer capacity of the energy piles does not decrease significantly during a year operation mode and even long.