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Energy and economic analysis of different heat pump systems for space heating

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  • Filippo Busato
  • Renato M. Lazzarin
  • Marco Noro

Abstract

The consumption of natural gas as a primary energy source in Italy has increased during recent years, mainly due to more widespread use of modern natural gas-fired combined cycle power plants. It is generally accepted that such an increased use of natural gas is beneficial, particularly in summer, due to the ‘take-or-pay’ contracts that often regulate energy supply. Conversely, the use of electrical energy should be decreased, in order to limit the ‘peak demand’ problem that has become prevalent in Italy. Therefore, besides electrically driven heat pumps (EHPs) that achieve good efficiencies, it is interesting to also consider the option of combustion engine-driven GEHPs for space heating purposes. In the latter type of HPs, losses attributed to the production and transport of electricity are eliminated and, in addition, there is the possibility to re-use the heat from the combustion engine. This article presents an assessment of the annual economic and energy profiles of electric and internal combustion engine HPs for space heating purposes. Due to the dependency of the performance of such technology on the source and sink (heating circuit) temperature levels, a comparison is performed of air-to-water HP systems (the most widely used) in two cases of maximum flow temperatures. The calculations show that natural gas-driven HPs can achieve approximately the same efficiency as electrically driven HPs that are powered with electricity from modern natural gas-fired combined cycle power plants. Within this study, the efficiencies of such systems are also compared with those that utilize conventional boiler technologies. Copyright , Oxford University Press.

Suggested Citation

  • Filippo Busato & Renato M. Lazzarin & Marco Noro, 2012. "Energy and economic analysis of different heat pump systems for space heating," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 7(2), pages 104-112, February.
  • Handle: RePEc:oup:ijlctc:v:7:y:2012:i:2:p:104-112
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    File URL: http://hdl.handle.net/10.1093/ijlct/cts016
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    Cited by:

    1. Massimiliano Manfren & Maurizio Sibilla & Lamberto Tronchin, 2021. "Energy Modelling and Analytics in the Built Environment—A Review of Their Role for Energy Transitions in the Construction Sector," Energies, MDPI, vol. 14(3), pages 1-29, January.
    2. Manfren, Massimiliano & Nastasi, Benedetto & Groppi, Daniele & Astiaso Garcia, Davide, 2020. "Open data and energy analytics - An analysis of essential information for energy system planning, design and operation," Energy, Elsevier, vol. 213(C).
    3. Manfren, Massimiliano & Nastasi, Benedetto & Tronchin, Lamberto & Groppi, Daniele & Garcia, Davide Astiaso, 2021. "Techno-economic analysis and energy modelling as a key enablers for smart energy services and technologies in buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 150(C).
    4. Vialetto, Giulio & Rokni, Masoud, 2015. "Innovative household systems based on solid oxide fuel cells for a northern European climate," Renewable Energy, Elsevier, vol. 78(C), pages 146-156.
    5. Massimiliano Manfren & Benedetto Nastasi, 2020. "Parametric Performance Analysis and Energy Model Calibration Workflow Integration—A Scalable Approach for Buildings," Energies, MDPI, vol. 13(3), pages 1-14, February.
    6. Ida Franzén & Linnéa Nedar & Maria Andersson, 2019. "Environmental Comparison of Energy Solutions for Heating and Cooling," Sustainability, MDPI, vol. 11(24), pages 1-17, December.

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