THERMAL SCIENCE
International Scientific Journal
OPERATION MODE AND HEAT PERFORMANCE OF ENERGY DRILLED PILES
ABSTRACT
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.
KEYWORDS
PAPER SUBMITTED: 2021-02-03
PAPER REVISED: 2021-04-13
PAPER ACCEPTED: 2021-06-20
PUBLISHED ONLINE: 2021-12-24
THERMAL SCIENCE YEAR
2021, VOLUME
25, ISSUE
Issue 6, PAGES [4553 - 4560]
- Laloui, L., et al., Experimental and Numerical Investigations of the Behavior of a Heat Exchanger Pile, International Journal for Numerical and Analytical Methods in Geomechanics, 30 (2006), 8, pp. 763-781
- Bourne-Webb, P. J., et al. Energy Pile Test at Lambeth College, London: Geotechnical and Thermodynamic Aspects of Pile Response to Heat Cycles, Geotechnique, 59 (2009), 3, pp. 237-248
- You, S., et al., Experimental Study on Structural Response of CFG Energy Piles, Applied Thermal Engineering, 96 (2016), 35, pp. 640-651
- You, S., et al., Heat Transfer Performance and Structure Response of Energy Piles, Thermal Science, 23 (2019), 3, pp. 235-235
- You, S., et al., Effects of Groundwater Flow on the Heat Transfer Performance of Energy Piles: Experimental and Numerical Analysis, Energy and Buildings, 155 (2017), 6, pp. 249-259
- Gao, M. Z., et al., Mechanical Behavior of Coal under Different Mining Rates: A Case Study from Laboratory Experiments to Field Testing, International Journal of Mining Science and Technology, On-line first, doi.org/10.1016/j.ijmst.2021.06.007, 2021
- Laloui, L., et al., Numerical Modelling of Some Features of Heat Exchanger Pile, Foundation Analysis and Design, Innovative Methods-Proceedings of Sessions of GeoShanghai, 12 (2006), May, pp. 189-194
- Cooke, R. W., Jacked Piles in London Clay, Interaction and Group Behavior under Working Conditions, Geotechnique, 30 (1980), 2, pp. 97-136
- Danno, K., et al., Pile Group Effect on End Bearing Capacity and Settlement of Pile Foundation, Japanese Geotechnical Journal, 3 (2008), 1, pp. 73-83
- Ren, L. W., et al., Field Tests on Thermal Response Characteristics of Micro-steel-pipe Pile under Multiple Temperature Cycles, Renewable Energy, 147 (2020), 2, pp. 1098-1106
- Fang, J. C., et al., Thermomechanical Behavior of Energy Piles and Interactions within Energy Pile-Raft Foundations, Journal of Geotechnicao and Geoenvironmental Engineering, 146 (2020), 9, ID04020079.
- Wang, Y. A., Model Test Research on Internal Force Response of Single Pile in Non-uniform Temperature Field, Journal of Disaster Prevention and Mitigation Engineering, (2017), 4, pp. 61-66
- Denghan, B., et al., Parametric Investigation of Helical Ground Heat Exchangers for Heat Pump Applications, Energy and Buildings, 127 (2016), Sept., pp. 999-1007
- Denghan, B., Experimental and Computational Investigation of the Spiral Ground Heat Exchangers for Ground Source Heat Pump Applications, Applied Thermal Engineering, 121 (2017), 1, pp. 908-921
- Carslaw, H. S., et al., Conduction of Heat in Solids, Claremore Press, Claremore, UK, 1986
- Fang, Z. H., Mathematical Model of the Axial Temperature of the Medium in the U-tube Geothermal Heat Exchanger, Journal of Shandong Institute of Architecture and Engineering, (2002), 1, pp. 7-11