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Dynamic thermal modelling of horizontal ground-source heat pumps

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  • Guohui Gan

Abstract

A computer program has been developed for numerical simulation of the dynamic thermal performance of horizontally coupled heat exchangers for ground-source heat pumps, taking account of dynamic variations of climatic, load and soil conditions. The program was used to investigate the effects of operating and start times, installation depth and soil freezing on the heat exchanger performance. It is shown that the rate of heat extraction decreases with increasing operating time. Operating a heat pump with an earlier start date in autumn would give rise to a higher amount of cumulative heat extraction. Also, a heat exchanger installed at a shallower depth can provide a larger heat extraction rate at the early stage of heating operation. In addition, soil freezing enhances heat extraction. Copyright , Oxford University Press.

Suggested Citation

  • Guohui Gan, 2013. "Dynamic thermal modelling of horizontal ground-source heat pumps," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 8(2), pages 95-105, February.
    • Handle: RePEc:oup:ijlctc:v:8:y:2013:i:2:p:95-105
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    File URL: http://hdl.handle.net/10.1093/ijlct/ctt012
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    Citations

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    Cited by:

    1. Gan, Guohui, 2018. "Dynamic thermal performance of horizontal ground source heat pumps – The impact of coupled heat and moisture transfer," Energy, Elsevier, vol. 152(C), pages 877-887.
    2. Guohui Gan, 2017. "Impacts of dynamic interactions on the predicted thermal performance of earth–air heat exchangers for preheating, cooling and ventilation of buildings," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 12(2), pages 208-223.
    3. Tang, Fujiao & Nowamooz, Hossein, 2020. "Outlet temperatures of a slinky-type Horizontal Ground Heat Exchanger with the atmosphere-soil interaction," Renewable Energy, Elsevier, vol. 146(C), pages 705-718.
    4. Tang, F. & Lahoori, M. & Nowamooz, H. & Rosin-Paumier, S. & Masrouri, F., 2021. "A numerical study into effects of soil compaction and heat storage on thermal performance of a Horizontal Ground Heat Exchanger," Renewable Energy, Elsevier, vol. 172(C), pages 740-752.
    5. Gan, Guohui, 2017. "Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings," Renewable Energy, Elsevier, vol. 103(C), pages 361-371.
    6. Somogyi, Viola & Sebestyén, Viktor & Nagy, Georgina, 2017. "Scientific achievements and regulation of shallow geothermal systems in six European countries – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 68(P2), pages 934-952.
    7. Kayaci, Nurullah, 2020. "Energy and exergy analysis and thermo-economic optimization of the ground source heat pump integrated with radiant wall panel and fan-coil unit with floor heating or radiator," Renewable Energy, Elsevier, vol. 160(C), pages 333-349.
    8. Sofyan, Sarwo Edhy & Hu, Eric & Kotousov, Andrei, 2016. "A new approach to modelling of a horizontal geo-heat exchanger with an internal source term," Applied Energy, Elsevier, vol. 164(C), pages 963-971.
    9. Krzysztof Neupauer & Sebastian Pater & Krzysztof Kupiec, 2018. "Study of Ground Heat Exchangers in the Form of Parallel Horizontal Pipes Embedded in the Ground," Energies, MDPI, vol. 11(3), pages 1-16, February.
    10. Bottarelli, M. & Bortoloni, M. & Su, Y., 2019. "On the sizing of a novel Flat-Panel ground heat exchanger in coupling with a dual-source heat pump," Renewable Energy, Elsevier, vol. 142(C), pages 552-560.
    11. Gan, Guohui, 2015. "Simulation of dynamic interactions of the earth–air heat exchanger with soil and atmosphere for preheating of ventilation air," Applied Energy, Elsevier, vol. 158(C), pages 118-132.

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