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Simulation of thermal performance of horizontal slinky-loop heat exchangers for ground source heat pumps

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  • Chong, Chiew Shan Anthony
  • Gan, Guohui
  • Verhoef, Anne
  • Garcia, Raquel Gonzalez
  • Vidale, Pier Luigi

Abstract

This paper presents results obtained from a numerical simulation for the horizontal slinky-loop heat exchanger of a ground-source heat pump system. A three-dimensional numerical model was developed and the results of the thermal performance of various heat exchanger configurations are presented. The investigation was carried out on five types of loop pitch (loop spacing), three types of loop diameter, three values of soil thermal properties, and allowing continuous and intermittent operation. Comparison was made for the heat transfer rate, the amount of pipe material needed, as well as excavation work required for the horizontal slinky-loop heat exchanger. The results indicate that system parameters have a significant effect on the thermal performance of the system.

Suggested Citation

  • Chong, Chiew Shan Anthony & Gan, Guohui & Verhoef, Anne & Garcia, Raquel Gonzalez & Vidale, Pier Luigi, 2013. "Simulation of thermal performance of horizontal slinky-loop heat exchangers for ground source heat pumps," Applied Energy, Elsevier, vol. 104(C), pages 603-610.
    • Handle: RePEc:eee:appene:v:104:y:2013:i:c:p:603-610
    DOI: 10.1016/j.apenergy.2012.11.069
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    References listed on IDEAS

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    1. Yang, H. & Cui, P. & Fang, Z., 2010. "Vertical-borehole ground-coupled heat pumps: A review of models and systems," Applied Energy, Elsevier, vol. 87(1), pages 16-27, January.
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    4. Garcia Gonzalez, Raquel & Verhoef, Anne & Vidale, Pier Luigi & Main, Bruce & Gan, Guogui & Wu, Yupeng, 2012. "Interactions between the physical soil environment and a horizontal ground coupled heat pump, for a domestic site in the UK," Renewable Energy, Elsevier, vol. 44(C), pages 141-153.
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