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Experimental evaluation of ground heat exchanger in UAE

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  • Atwany, Hanin
  • Hamdan, Mohammad O.
  • Abu-Nabah, Bassam A.
  • Alami, Abdul Hai
  • Attom, Mousa

Abstract

In this paper, an experimental investigation is conducted to examine the performance of a ground heat exchanger (GHE) in Sharjah city in the United Arab Emirates (UAE). The paper reports and discusses the results of two shallow geothermal experimental studies. The first study evaluates ground temperature distribution for two boreholes, with depth of 10 m each, over a period of seven months. The ground temperature distribution results have showed that the mean ground temperature is around 32 °C which is 5° higher than the year-average ambient temperature. The second study examines the performance of a GHE under Sharjah city conditions. The GHE is fabricated using a 300 m long plastic pipe with 0.03 m diameter pipe, which has been horizontally buried at 2.5 m below ground surface. The results show that the ground temperature increases due to GHE and that the ground needs around 9 h to dissipate its thermal energy. A mass flow rate of 0.15 kg/s has provided higher heat exchange and higher GHE effectiveness when compared to lower flow rate of 0.0375 kg/s. The GHE effectiveness decreases over time and the rate of drop in effectiveness becomes more pronounced as mass flow rate increases.

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  • Atwany, Hanin & Hamdan, Mohammad O. & Abu-Nabah, Bassam A. & Alami, Abdul Hai & Attom, Mousa, 2020. "Experimental evaluation of ground heat exchanger in UAE," Renewable Energy, Elsevier, vol. 159(C), pages 538-546.
    • Handle: RePEc:eee:renene:v:159:y:2020:i:c:p:538-546
    DOI: 10.1016/j.renene.2020.06.073
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    Cited by:

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    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. Reshna Raveendran & Ahmed Hassan & Kheira Anissa Tabet Aoul, 2020. "Diagnoses for Potential Enaction of Water–Energy Nexus in Green Building Rating Systems: Case Study of the Pearl Rating System of United Arab Emirates," Energies, MDPI, vol. 13(20), pages 1-17, October.
    4. Joanna Piotrowska-Woroniak & Tomasz Szul & Grzegorz Woroniak, 2023. "Application of a Model Based on Rough Set Theory (RST) for Estimating the Temperature of Brine from Vertical Ground Heat Exchangers (VGHE) Operated with a Heat Pump—A Case Study," Energies, MDPI, vol. 16(20), pages 1-12, October.
    5. Huu-Quan, Do & Memarian, Amir & Izadi, Mohsen & Shehzad, Sabir Ali, 2020. "Thermal performance and effectiveness of a dual-porous domestic heat exchanger for building heating application," Renewable Energy, Elsevier, vol. 162(C), pages 1874-1889.
    6. 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.

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