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Thermal response testing of a multiple borehole ground heat exchanger

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  • Saqib Javed
  • Per Fahlén

Abstract

This paper presents the methodology, results and a discussion of thermal response tests (TRTs) performed on a multiple borehole ground heat exchanger. The ground heat exchanger consisted of nine 80-m deep boreholes. TRTs with durations between 48 and 260 h were performed on individual boreholes. Tests were analysed using common evaluation methods, and ground conductivity and borehole resistance values were determined for all nine boreholes. In addition to these parameters, the undisturbed ground temperatures were also determined for individual boreholes using multiple approaches. A sensitivity analysis was performed to analyse the effects of various test and parameter uncertainties on the ground thermal conductivity and borehole thermal resistance estimations. Copyright , Oxford University Press.

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  • Saqib Javed & Per Fahlén, 2011. "Thermal response testing of a multiple borehole ground heat exchanger," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 6(2), pages 141-148, March.
    • Handle: RePEc:oup:ijlctc:v:6:y:2011:i:2:p:141-148
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    File URL: http://hdl.handle.net/10.1093/ijlct/ctr004
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    Citations

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    Cited by:

    1. Raymond, Jasmin & Lamarche, Louis & Malo, Michel, 2015. "Field demonstration of a first thermal response test with a low power source," Applied Energy, Elsevier, vol. 147(C), pages 30-39.
    2. Cunha, R.P. & Bourne-Webb, P.J., 2022. "A critical review on the current knowledge of geothermal energy piles to sustainably climatize buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 158(C).
    3. R. Adamovský & L. Mašek & P. Neuberger, 2012. "Analysis of rock mass borehole temperatures with vertical heat exchanger," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 58(2), pages 57-65.
    4. Javed, Saqib & Spitler, Jeffrey, 2017. "Accuracy of borehole thermal resistance calculation methods for grouted single U-tube ground heat exchangers," Applied Energy, Elsevier, vol. 187(C), pages 790-806.
    5. Ana Vieira & Maria Alberdi-Pagola & Paul Christodoulides & Saqib Javed & Fleur Loveridge & Frederic Nguyen & Francesco Cecinato & João Maranha & Georgios Florides & Iulia Prodan & Gust Van Lysebetten , 2017. "Characterisation of Ground Thermal and Thermo-Mechanical Behaviour for Shallow Geothermal Energy Applications," Energies, MDPI, vol. 10(12), pages 1-51, December.
    6. Spitler, Jeffrey D. & Javed, Saqib & Ramstad, Randi Kalskin, 2016. "Natural convection in groundwater-filled boreholes used as ground heat exchangers," Applied Energy, Elsevier, vol. 164(C), pages 352-365.
    7. Liebel, Heiko T. & Javed, Saqib & Vistnes, Gunnar, 2012. "Multi-injection rate thermal response test with forced convection in a groundwater-filled borehole in hard rock," Renewable Energy, Elsevier, vol. 48(C), pages 263-268.
    8. Lucia, Umberto & Simonetti, Marco & Chiesa, Giacomo & Grisolia, Giulia, 2017. "Ground-source pump system for heating and cooling: Review and thermodynamic approach," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 867-874.

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