THERMAL SCIENCE

International Scientific Journal

VERTICAL U-SHAPED HEAT EXCHANGERS FOR CONSTRUCTION ENGINEERING: NEW PROMISES AND FUTURE CHALLENGES

ABSTRACT
The ground source heat pump system is a promising technology for building heating and cooling by using underground energy, however, many technical problems, e. g. low energy utilization rate and inefficiency operation, have greatly hindered its wide applications. This paper studies the key technologies of vertical U-shaped heat exchangers in construction engineering to solve the bottleneck problem and optimizes the system. Three commonly used backfill methods are analyzed, and a double U-shaped branch pipe is recommended to improve construction efficiency. The paper sheds a bright light on green energy utilization with high-efficiency, energy-saving, and environmental protection.
KEYWORDS
PAPER SUBMITTED: 2020-01-22
PAPER REVISED: 2020-06-27
PAPER ACCEPTED: 2020-06-27
PUBLISHED ONLINE: 2021-03-27
DOI REFERENCE: https://doi.org/10.2298/TSCI200122113L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 3, PAGES [2253 - 2261]
REFERENCES
  1. Sanner, B., et al., Current Status of Ground Source Heat Pumps and Underground Thermal Energy Storage In Europe, Geothermics, 32 (2003), 4, pp. 579-588
  2. Sarbu, I., et al., General Review of Ground-Source Heat Pump Systems for Heating and Cooling Of Buildings, Energy & Buildings, 70 (2014), 1, pp. 441-454
  3. Li, C., et al., Experimental and Numerical Studies on Heat Transfer Characteristics of Vertical Deep-Buried U-Bend Pipe to Supply Heat in Buildings with Geothermal Energy, Energy, 142 (2018), 1, pp. 689-701
  4. Law, Y., et al., Characterization of the Effects of Borehole Configuration and Interference with Long Term Ground Temperature Modelling of Ground Source Heat Pumps, Applied Energy, 179 (2016), 1, pp. 1032-1047
  5. Kurevija, T., et al., Hydraulic and Thermogeological Design Differences Between Two-Loop Vertical and Inclined Coaxial Borehole Heat Exchangers, Renewable Energy, 117 (2018), Mar., pp. 314-323
  6. Baek, S., et al., Effects of the Geothermal Load on the Ground Temperature Recovery in a Ground Heat Exchanger, Energy and Buildings, 136 (2017), 1, pp. 63-72
  7. Li, H., et al., Discussion of a Combined Solar Thermal and Ground Source Heat Pump System Operation Strategy for Office Heating, Energy and Buildings, 162 (2018), 1, pp. 1032-1047
  8. Emmi, G., et al., An Analysis of Solar Assisted Ground Source Heat Pumps in Cold Climates, Energy Conversion & Management, 106 (2015), Dec., pp. 660-675
  9. Spitler, J., et al., Thermal Response Testing for Ground Source Heat Pump Systems - An Historical Re-view, Renewable & Sustainable Energy Reviews, 50 (2015), Oct., pp. 1125-1137
  10. Noorollahi, Y., et al., The Effects of Ground Heat Exchanger Parameters Changes on Geothermal Heat Pump Performance - A Review, Applied Thermal Engineering, 129 (2018), 25, pp. 1645-1658
  11. Molinari, M., et al., The Application of The Parametric Analysis for Improved Energy Design of a Ground Source Heat Pump for Residential Buildings, Energy & Buildings, 63 (2013), 1, pp. 119-128
  12. Bi, Y., et al., Parameter Analysis of Single U-Tube GHE and Dynamic Simulation of Underground Temperature Field Round One Year for GSHP, Energy, 174 (2019), 5, pp. 138-147
  13. Liu, X., et al., Problems in The Design and Construction of Ground Source Ground Source Heat Pump Air Conditioning System (in Chinese), Construction Technology, 41 (2010), 11, pp. 1045-1046
  14. Meng, D., et al., Construction of Buried Pipes in a Source Heat Pump Air Conditioning System in Wuhan (in Chinese), Building Energy & Environment, (2008), 5, pp. 42-46
  15. Trickey, S., et al., Parametric Study of Frost-Induced Bending Moments in Buried Cast Iron Water Pipes, Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, 51 (2016), 1, pp. 291-300
  16. Kavanaugh, S., Thermal Conductivity of Cementitious Grouts and Impact on Heat Exchanger Length Design for Ground Source Heat Pump, HVAC & Research, 5 (1999), 2, pp. 85-96
  17. Bottarelli, M., et al., Numerical Analysis of a Novel Ground Heat Exchanger Coupled with Phase Change Materials, Applied Thermal Engineering, 88 (2015), 5, pp. 369-375
  18. Zhang, X., et al. Research on Thermal Short Circuit Suppression Based on Unbalanced Coefficient (in Chinese), Architecture Science, 32 (2016), 12, pp. 85-92
  19. Yang, L., et al. Technical Requirements for The Construction Process of Recharging of Soil Source Heat Pump Vertical Buried Pipe Heat Exchanger (in Chinese), Building Technology Development, 43 (2016), 4, pp. 25-27
  20. Cheng, Y., Discussion on The Construction Technology of Buried Pipe Heat Exchanger in a University in Beijing (in Chinese), Building Energy & Environment, 30 (2011), 4, pp. 93-95
  21. Sun, P., et al., Design and Construction of Soil Source Heat Pump System in a Five-Star Hotel (in Chinese), Building Energy Conservation, 43 (2015), 10, pp. 16-18
  22. Huang, W., et al., Several Problems in The Construction of Vertical Buried Pipe Ground Source Heat Pump (in Chinese), Heating Ventilating & Air Conditioning, 43 (2013), 1, pp. 66-69
  23. Lamarche, L., et al., A Review of Methods to Evaluate Borehole Thermal Resistances in Geothermal Heat-Pump Systems, Geothermics, 39 (2010), 2, pp. 187-200

© 2022 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence