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A Review of Groundwater Heat Pump Systems in the Italian Framework: Technological Potential and Environmental Limits

Author

Listed:
  • Martina Gizzi

    (Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy)

  • Federico Vagnon

    (Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy)

  • Glenda Taddia

    (Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy)

  • Stefano Lo Russo

    (Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy)

Abstract

For new buildings in densely urbanised cities, groundwater heat pump systems (GWHPs) represent a concrete, effective solution for decarbonising existing energy systems. Environmental factors must be considered to limit the GWHP system’s impact on the subsurface. Particular attention must be given to the long-term sustainability of groundwater abstraction modalities and the development of a thermally affected zone around re-injection wells. Simplified solutions and numerical models have been applied to predict subsurface heat transport mechanisms; these simulations allow researchers to consider site-specific geological conditions, transient heat and groundwater flow regimes, and anisotropies in the subsurface media. This paper presents a comprehensive overview of the current research on GWHPs and discusses the benefits and limitations of their diffusion in Italy. The sources used provide information on and examples of the correct methodological approaches for depicting the induced variations while avoiding the overestimation or underestimation of the impact that GWHPs have on exploited aquifers.

Suggested Citation

  • Martina Gizzi & Federico Vagnon & Glenda Taddia & Stefano Lo Russo, 2023. "A Review of Groundwater Heat Pump Systems in the Italian Framework: Technological Potential and Environmental Limits," Energies, MDPI, vol. 16(12), pages 1-13, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:12:p:4813-:d:1174953
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    References listed on IDEAS

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