International Scientific Journal

Authors of this Paper

External Links


The author established a physical and mathematical model for the heat exchange of a ground source heat pump buried heat exchanger under the co-operation of heat and seepage, including the soil and fluid inside the pipe surrounding the heat exchanger. Using ANSYS finite element APDL language for programming, based on the line heat source model, simulate the temperature field around the vertical double U-tube underground heat exchanger, the effects of soil thermophysical properties, temperature outside the pipe, soil type and backfill material on soil temperature field were obtained through simulation analysis. The experimental results indicate that, the changes in soil temperature are also significant with different backfill materials. Therefore, it is necessary to conduct serious research and optimization on backfill materials, develop new types of backfill materials, improve backfill construction techniques, and conduct in-depth research by combining theoretical analysis with practical engineering to ultimately find efficient and economical backfill materials. The change in equivalent pipe diameter has little effect on soil temperature, and the linear heat source model is used for calculation without causing significant errors. It has been proven that the soil itself has strong resilience and has reference value for the design of buried heat exchangers in practical engineering.
PAPER REVISED: 2023-06-21
PAPER ACCEPTED: 2023-09-23
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 2, PAGES [1441 - 1448]
  1. Wei, C., et al., Development of a New Silicate Thermal Insulation Coating and Analysis of Heat Storage Characteristics, Thermal Science, 27 (2023), 2B, pp. 949-957
  2. A, H. Z., et al., Study on the Influence of Pipe Spacing on the Annual Performance of Ground Source Heat Pumps Considering the Factors of Heat and Moisture Transfer, Seepage and Freezing, Renewable Energy, 163 (2021), 3, pp. 262-275
  3. Shah, A., et al., Energy Performance Evaluation of Shallow Ground Source Heat Pumps for Residential Buildings, Energies, 15 (2022), 7, pp. 156-158
  4. Zhang, G. Z. L., Investigation for a Novel Optimization Design Method of Ground Source Heat Pump Based on Hydraulic Characteristics of Buried Pipe Network, Applied Thermal Engineering: Design, Processes, Equipment, Economics, 182 (2021), 1, 457
  5. Kobayashi, N., Takeda, T., Heat Exchange Performance of Ground Source Heat Pump That Use Direct Expansion Method, The Proceedings of the Thermal Engineering Conference, 0074 (2021), 3, pp. 85-89
  6. Walch, A., et al., Using Machine Learning to Estimate the Technical Potential of Shallow Ground-Source Heat Pumps with Thermal Interference, Journal of Physics: Conference Series, 2042 (2021), 1, 012010
  7. Lee, M., et al., Performance Improvement of Solar-Assisted Ground-Source Heat Pumps with Parallelly Connected Heat Sources in Heating-Dominated Areas, Energy, 240 (2022), 124, pp. 96-103
  8. Sang, J., et al., Differences Between Design Expectations and Actual Operation of Ground Source Heat Pumps for Green Buildings in the Cold Region of Northern China, Energy, 69 (2022), 1, 252
  9. Bayomy, A. M., et al., Numerical and Analytical Study of a Geo-Exchange Borehole Using Conventional Grout and Bentonite-Based Backfilling Material, International Journal of Energy Research, 88 (2021), 74, pp. 147-149
  10. Sun, Y. K., et al., Numerical Simulation of Operation Performance on Production and Injection of a Double Well Geothermal System in Kailu Basin, Inner Mongolia, Journal of Groundwater Science and Engineering, 10 (2022), 2, pp. 196-208
  11. Dewanto, H., et al., Experimental Investigation of a Ground-Source Heat Pump System for Greenhouse Heating-Cooling, International Journal of Low-Carbon Technologies, 967 (2021), 4, 4
  12. Nikitin, A., et al., Comparative Study of Air Source and Ground Source Heat Pumps in 10 Coldest Russian Cities Based on Energy-Exergy-Economic-Environmental Analysis, Journal of Cleaner Production, 321 (2021), 3, pp. 128979
  13. Wang, J., et al., Simulation Experiment on Energy Tower Coupled with Buried Pipe System of Ground- Source Heat Pump For Cross-Season Heat Storage, Journal of Physics: Conference Series, 2108 (2021), 1, 012039
  14. Chen, Q., et al., New Technique for Ground Vibration Mitigation by Horizontally Buried Hollow Pipes, International Journal of Geomechanics, 96 (2021), 7, 21
  15. Li, C., et al., Study on Heat Transfer Characteristics of the Deep-Buried Ground Heat Exchanger under Different Multi-Pipe Lay-Outs, Geothermics, 100 (2022), 47, 102343
  16. Liu, J., et al., Combined with the Residual and Multi-Scale Method for Chinese Thermal Power System Record Text Recognition, Thermal Science, 23 (2019), 5A, pp. 2361-2640
  17. Shukla, S., et al., Performance Characterization of Novel Caisson-Based Thermal Storage for Ground Source Heat Pumps, Renewable Energy, 174 (2021), 7, pp. 96-103
  18. Chen, Z., et al., Research on Heat Exchange Law and Structural Design Optimization of Deep Buried Pipe Energy Piles, Energies, 14 (2021), 22, pp. 874-895
  19. Bae, S., Nam, Y., Feasibility Analysis for an Integrated System Using Photovoltaic-Thermal and Ground Source Heat Pump Based on Real-Scale Experiment, Renewable Energy, 185 (2022), 87, pp. 965-971
  20. Alshehri, F., et al., Enhancement Technology of Underground-Water Flow Field in Coal Mine to Improve Energy Efficiency of Heat Pump System in Geothermal Energy Development, Thermal Science, 27 (2023), 2A, pp. 1191-1198

© 2024 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