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Analysis and optimization of the design parameters of a district groundwater heat pump system in Turin, Italy

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  • Blázquez, Cristina Sáez
  • Verda, Vittorio
  • Nieto, Ignacio Martín
  • Martín, Arturo Farfán
  • González-Aguilera, Diego

Abstract

District heating systems are gaining an increasing importance in the space heating and the production of Domestic Hot Water. Focusing on the geothermal energy as the energy supply of these systems, an optimal design could involve an increased number of geothermal district heating installations. This research presents two different designs of a groundwater heat pump system from the application of initial real data. Both designs differ in the heat pumps: 1 installation in scenario 1 and 3 installations in scenario 2. The procedure includes the calculation of all the required geothermal parameters in both assumptions. Optimization of the drilling schema is carried out using COMSOL Multiphysics software. Technical and economic results reveal that scenario 1 is the most suitable option for the study case here presented. Global initial investment is lower in scenario 1 the same as the annual operational costs since the coefficient of performance of the heat pumps in this scenario 1 is slightly higher than the one of each module of scenario 2.

Suggested Citation

  • Blázquez, Cristina Sáez & Verda, Vittorio & Nieto, Ignacio Martín & Martín, Arturo Farfán & González-Aguilera, Diego, 2020. "Analysis and optimization of the design parameters of a district groundwater heat pump system in Turin, Italy," Renewable Energy, Elsevier, vol. 149(C), pages 374-383.
    • Handle: RePEc:eee:renene:v:149:y:2020:i:c:p:374-383
    DOI: 10.1016/j.renene.2019.12.074
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    References listed on IDEAS

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    1. Nguyen, Hiep V. & Law, Ying Lam E. & Alavy, Masih & Walsh, Philip R. & Leong, Wey H. & Dworkin, Seth B., 2014. "An analysis of the factors affecting hybrid ground-source heat pump installation potential in North America," Applied Energy, Elsevier, vol. 125(C), pages 28-38.
    2. Park, Byeong-Hak & Bae, Gwang-Ok & Lee, Kang-Kun, 2015. "Importance of thermal dispersivity in designing groundwater heat pump (GWHP) system: Field and numerical study," Renewable Energy, Elsevier, vol. 83(C), pages 270-279.
    3. Mustafa Omer, Abdeen, 2008. "Ground-source heat pumps systems and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(2), pages 344-371, February.
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    Cited by:

    1. Luo, Jin & Li, Peijia & Yan, Zezhou & Wu, Yungang, 2022. "An integrated 3D method to assess the application potential of GWHP systems in fluvial deposit areas," Renewable Energy, Elsevier, vol. 187(C), pages 631-644.
    2. Taha Sezer & Abubakar Kawuwa Sani & Rao Martand Singh & Liang Cui, 2023. "Laboratory Investigation of Impact of Injection–Abstraction Rate and Groundwater Flow Velocity on Groundwater Heat Pump Performance," Energies, MDPI, vol. 16(19), pages 1-19, October.
    3. Ignacio Martín Nieto & Cristina Sáez Blázquez & Arturo Farfán Martín & Diego González-Aguilera, 2020. "Analysis of the Influence of Reducing the Duration of a Thermal Response Test in a Water-Filled Geothermal Borehole Located in Spain," Energies, MDPI, vol. 13(24), pages 1-19, December.
    4. Al Saedi, A.Q. & Sharma, P. & Kabir, C.S., 2021. "A novel cyclical wellbore-fluid circulation strategy for extracting geothermal energy," Energy, Elsevier, vol. 235(C).
    5. Taha Sezer & Abubakar Kawuwa Sani & Rao Martand Singh & Liang Cui, 2023. "Numerical Investigation and Optimization of a District-Scale Groundwater Heat Pump System," Energies, MDPI, vol. 16(20), pages 1-25, October.

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