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Heat transfer simulation, analysis and performance study of single U-tube borehole heat exchanger

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  • Kerme, Esa Dube
  • Fung, Alan S.

Abstract

This paper presents the analysis, simulation and performance study of heat transfer in a single U-tube borehole heat exchanger (BHE). Unsteady heat transfer method was used to analyze the heat transfer process of both inside and outside the borehole. Implicit numerical method applied on heat transfer equations obtained from energy balance (accompanied with thermal resistance model) was used to obtain the solution. The variation of mean fluid temperature, average borehole wall, grout and nearby ground temperature as well as borehole loading with borehole depth and time were investigated. Dynamic simulation was also performed to assess the influence of important parameters. The effect of two parameters, fluid mass flowrate and thermal conductivity of grout, on mean fluid temperature, borehole wall, grout and ground temperature as well as on borehole loading and borehole thermal effectiveness were investigated. The outcome of this study can substantially reduce the time devoted for research and to quickly determine the impact of various parameters on performance of vertical single U-tube borehole heat exchanger. Furthermore, the obtained result can be utilized as a reference for the design and optimization of heating and cooling system integrated with ground coupled heat pump system.

Suggested Citation

  • Kerme, Esa Dube & Fung, Alan S., 2020. "Heat transfer simulation, analysis and performance study of single U-tube borehole heat exchanger," Renewable Energy, Elsevier, vol. 145(C), pages 1430-1448.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:1430-1448
    DOI: 10.1016/j.renene.2019.06.004
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    Cited by:

    1. Yao, Jian & Liu, Wenjie & Zhang, Lu & Tian, Binshou & Dai, Yanjun & Huang, Mingjun, 2020. "Performance analysis of a residential heating system using borehole heat exchanger coupled with solar assisted PV/T heat pump," Renewable Energy, Elsevier, vol. 160(C), pages 160-175.
    2. Joanna Piotrowska-Woroniak, 2021. "Determination of the Selected Wells Operational Power with Borehole Heat Exchangers Operating in Real Conditions, Based on Experimental Tests," Energies, MDPI, vol. 14(9), pages 1-21, April.
    3. Aminhossein Jahanbin & Giovanni Semprini & Andrea Natale Impiombato & Cesare Biserni & Eugenia Rossi di Schio, 2020. "Effects of the Circuit Arrangement on the Thermal Performance of Double U-Tube Ground Heat Exchangers," Energies, MDPI, vol. 13(12), pages 1-19, June.
    4. Aizhao Zhou & Xianwen Huang & Wei Wang & Pengming Jiang & Xinwei Li, 2021. "Thermo-Hydraulic Performance of U-Tube Borehole Heat Exchanger with Different Cross-Sections," Sustainability, MDPI, vol. 13(6), pages 1-20, March.
    5. Joanna Piotrowska-Woroniak, 2021. "Assessment of Ground Regeneration around Borehole Heat Exchangers between Heating Seasons in Cold Climates: A Case Study in Bialystok (NE, Poland)," Energies, MDPI, vol. 14(16), pages 1-32, August.
    6. Luka Boban & Dino Miše & Stjepan Herceg & Vladimir Soldo, 2021. "Application and Design Aspects of Ground Heat Exchangers," Energies, MDPI, vol. 14(8), pages 1-31, April.

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