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Mathematical Modelling and Operational Analysis of Combined Vertical–Horizontal Heat Exchanger for Shallow Geothermal Energy Application in Cooling Mode

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  • Sarwo Edhy Sofyan

    (Department of Mechanical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia)

  • Eric Hu

    (School of Mechanical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia)

  • Andrei Kotousov

    (School of Mechanical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia)

  • Teuku Meurah Indra Riayatsyah

    (Department of Mechanical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia)

  • Razali Thaib

    (Department of Mechanical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia)

Abstract

Geothermal heat exchangers (GHEs) represent a buried pipe system, which can be utilised to harness renewable thermal energy stored in the ground to improve the efficiency of heating and cooling systems. Two basic arrangements of GHEs have been widely used: vertical and horizontal. Vertical GHEs generally have a better performance in comparison with the horizontal arrangement, and these systems are particularly suitable for confined spaces. Nevertheless, the main technical challenge associated with GHEs, for either the vertical or the horizontal arrangement, is the performance deterioration associated with an increase in the operation times during summer or winter seasons. In this paper, a combined horizontal-vertical GHE arrangement is proposed to address the current challenges. The combined GHE arrangement can be operated in five different modes, corresponding to different thermal loading conditions. These five operation modes of the combined GHE are analysed based on the transient finite difference models previously developed for the horizontal and vertical arrangements. The simulation results reveal that for the single operation mode (horizontal or vertical only), the vertical GHE performs better than the horizontal GHE due to relatively stable ground temperature deep down. While, for the combined operation mode, the series operations (horizontal to vertical or vertical to horizontal) of the GHE are superior to the split mode. It is found that the effect of the fluid mass flow rate ratio is trivial on the heat dissipation of the split mode GHE. The highest heat transfer rate in the split flow operational mode is rendered by the ratio of the mass flow rate of 40% horizontal and 60% vertical. In addition, the climate condition has more effect on GHE’s performance and the increase of the fluid flow rate it can enhance the amount of energy released by the GHE.

Suggested Citation

  • Sarwo Edhy Sofyan & Eric Hu & Andrei Kotousov & Teuku Meurah Indra Riayatsyah & Razali Thaib, 2020. "Mathematical Modelling and Operational Analysis of Combined Vertical–Horizontal Heat Exchanger for Shallow Geothermal Energy Application in Cooling Mode," Energies, MDPI, vol. 13(24), pages 1-20, December.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6598-:d:461978
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    References listed on IDEAS

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    1. Zhai, X.Q. & Qu, M. & Yu, X. & Yang, Y. & Wang, R.Z., 2011. "A review for the applications and integrated approaches of ground-coupled heat pump systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(6), pages 3133-3140, August.
    2. Kjellsson, Elisabeth & Hellström, Göran & Perers, Bengt, 2010. "Optimization of systems with the combination of ground-source heat pump and solar collectors in dwellings," Energy, Elsevier, vol. 35(6), pages 2667-2673.
    3. Wu, Wei & Li, Xianting & You, Tian & Wang, Baolong & Shi, Wenxing, 2015. "Combining ground source absorption heat pump with ground source electrical heat pump for thermal balance, higher efficiency and better economy in cold regions," Renewable Energy, Elsevier, vol. 84(C), pages 74-88.
    4. Man, Yi & Yang, Hongxing & Wang, Jinggang, 2010. "Study on hybrid ground-coupled heat pump system for air-conditioning in hot-weather areas like Hong Kong," Applied Energy, Elsevier, vol. 87(9), pages 2826-2833, September.
    5. 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.
    6. Li, Xianting & Lyu, Weihua & Ran, Siyuan & Wang, Baolong & Wu, Wei & Yang, Zixu & Jiang, Sihang & Cui, Mengdi & Song, Pengyuan & You, Tian & Shi, Wenxing, 2020. "Combination principle of hybrid sources and three typical types of hybrid source heat pumps for year-round efficient operation," Energy, Elsevier, vol. 193(C).
    7. Sagia, Z. & Rakopoulos, C. & Kakaras, E., 2012. "Cooling dominated Hybrid Ground Source Heat Pump System application," Applied Energy, Elsevier, vol. 94(C), pages 41-47.
    8. Florides, Georgios A. & Christodoulides, Paul & Pouloupatis, Panayiotis, 2013. "Single and double U-tube ground heat exchangers in multiple-layer substrates," Applied Energy, Elsevier, vol. 102(C), pages 364-373.
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    Cited by:

    1. T. M. Indra Mahlia & I. M. Rizwanul Fattah, 2021. "Energy for Sustainable Future," Energies, MDPI, vol. 14(23), pages 1-2, November.
    2. Luka Perković & Domagoj Leko & Amalia Lekić Brettschneider & Hrvoje Mikulčić & Petar S. Varbanov, 2021. "Integration of Photovoltaic Electricity with Shallow Geothermal Systems for Residential Microgrids: Proof of Concept and Techno-Economic Analysis with RES2GEO Model," Energies, MDPI, vol. 14(7), pages 1-21, March.

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