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Energy analysis of multi-source heat pump system: A real case study application

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  • Emmi, Giuseppe
  • Baccega, Eleonora
  • Cesari, Silvia
  • Mainardi, Elena
  • Bottarelli, Michele

Abstract

In the last years the HVAC sector has seen the growing interest in using the so-called multi-source heat pump systems. This type of plant aims to improve the energy performance of the heat pump. As widely known the heat pump represents the most promise solution in terms of potential for exploitation of renewable energies. The sun and air can be used as alternative sources to the ground during the middle season or when they are available and convenient, while the ground could be used during the peak periods of the seasons keeping good energy performances of the system. The present work summarizes the monitoring results of a large-scale experimental plant used for the air conditioning of a 100 m2 snack bar in Ferrara, Italy. The energy behaviour of the plant has been monitored for one year and its performance has been compared with the existing plant. The results have proved an energy saving between 20 % and 70 % in cooling mode. In heating the proposed plant is less competitive due to the share of renewable energy considered in the existing heating system. The work shows how these systems are potentially suitable for the electrification and decarbonisation process in the building sector.

Suggested Citation

  • Emmi, Giuseppe & Baccega, Eleonora & Cesari, Silvia & Mainardi, Elena & Bottarelli, Michele, 2024. "Energy analysis of multi-source heat pump system: A real case study application," Renewable Energy, Elsevier, vol. 221(C).
    • Handle: RePEc:eee:renene:v:221:y:2024:i:c:s0960148123016233
    DOI: 10.1016/j.renene.2023.119708
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    References listed on IDEAS

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    1. Bottarelli, M. & Bortoloni, M. & Su, Y., 2019. "On the sizing of a novel Flat-Panel ground heat exchanger in coupling with a dual-source heat pump," Renewable Energy, Elsevier, vol. 142(C), pages 552-560.
    2. Cai, Jingyong & Ji, Jie & Wang, Yunyun & Huang, Wenzhu, 2016. "Numerical simulation and experimental validation of indirect expansion solar-assisted multi-functional heat pump," Renewable Energy, Elsevier, vol. 93(C), pages 280-290.
    3. Maranghi, Florian & Gosselin, Louis & Raymond, Jasmin & Bourbonnais, Martin, 2023. "Modeling of solar-assisted ground-coupled heat pumps with or without batteries in remote high north communities," Renewable Energy, Elsevier, vol. 207(C), pages 484-498.
    4. Bottarelli, Michele & Baccega, Eleonora & Cesari, Silvia & Emmi, Giuseppe, 2022. "Role of phase change materials in backfilling of flat-panels ground heat exchanger," Renewable Energy, Elsevier, vol. 189(C), pages 1324-1336.
    5. Besagni, Giorgio & Croci, Lorenzo & Nesa, Riccardo & Molinaroli, Luca, 2019. "Field study of a novel solar-assisted dual-source multifunctional heat pump," Renewable Energy, Elsevier, vol. 132(C), pages 1185-1215.
    6. PELELLA, Francesco & ZSEMBINSZKI, Gabriel & VISCITO, Luca & William MAURO, Alfonso & CABEZA, Luisa F., 2023. "Thermo-economic optimization of a multi-source (air/sun/ground) residential heat pump with a water/PCM thermal storage," Applied Energy, Elsevier, vol. 331(C).
    7. Chen, Yuzhu & Hua, Huilian & Wang, Jun & Lund, Peter D., 2021. "Integrated performance analysis of a space heating system assisted by photovoltaic/thermal collectors and ground source heat pump for hotel and office building types," Renewable Energy, Elsevier, vol. 169(C), pages 925-934.
    8. Emmi, Giuseppe & Bottarelli, Michele, 2023. "Enhancement of shallow ground heat exchanger with phase change material," Renewable Energy, Elsevier, vol. 206(C), pages 828-837.
    9. Cruz-Peragón, F. & Gómez-de la Cruz, F.J. & Palomar-Carnicero, J.M. & López-García, R., 2022. "Optimal design of a hybrid ground source heat pump for an official building with thermal load imbalance and limited space for the ground heat exchanger," Renewable Energy, Elsevier, vol. 195(C), pages 381-394.
    10. Vivian, Jacopo & Emmi, Giuseppe & Zarrella, Angelo & Jobard, Xavier & Pietruschka, Dirk & De Carli, Michele, 2018. "Evaluating the cost of heat for end users in ultra low temperature district heating networks with booster heat pumps," Energy, Elsevier, vol. 153(C), pages 788-800.
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    1. Zendehboudi, Alireza, 2024. "Optimal discharge pressure and performance characteristics of a transcritical CO2 heat pump system with a tri-partite gas cooler for combined space and water heating," Renewable Energy, Elsevier, vol. 226(C).

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