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Energy analysis of a thermal system composed by a heat pump coupled with a PVT solar collector

Author

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  • Vallati, A.
  • Ocłoń, P.
  • Colucci, C.
  • Mauri, L.
  • de Lieto Vollaro, R.
  • Taler, J.

Abstract

The development of heat pump technology in the tertiary sector can lead to a reduction in greenhouse emissions and enhanced exploitation of renewable energy sources, including solar energy. The present paper investigates the potentiality of an energy system equipped with photovoltaic thermal (PV) hybrid solar collectors, a storage tanks for the heat source and a heat pump for the space heating of a small office located in three different European cities. The behaviour of the heat pump according to the heat taken from the photovoltaic panels and stored in the tank has been analysed. An energy analysis was performed according to the efficiency of the heat pump and then the thermodynamic parameters of the system were evaluated. The analytical model of each subsystem of the thermal plant was developed in Matlab where hourly simulation during the period of heating season were performed. Therefore, a comparison between the results obtained for Rome, Milan and Cracow provided the heating energy demand covering rate for each of the cities in different subsystem efficiency conditions. When thermal and electrical efficiency of PVT are set respectively to 0.6 and 0.15 and the efficiency of storage unit heat exchanger is considered equal to 0.9 the heating demand covered for Rome is 70%, for Milan is 62%, while for Cracow is 47%. Those values show a good potential for supporting heat-pump based PV-T heating systems.

Suggested Citation

  • Vallati, A. & Ocłoń, P. & Colucci, C. & Mauri, L. & de Lieto Vollaro, R. & Taler, J., 2019. "Energy analysis of a thermal system composed by a heat pump coupled with a PVT solar collector," Energy, Elsevier, vol. 174(C), pages 91-96.
    • Handle: RePEc:eee:energy:v:174:y:2019:i:c:p:91-96
    DOI: 10.1016/j.energy.2019.02.152
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    6. Liu, Yang & Zhang, Heng & Chen, Haiping, 2020. "Experimental study of an indirect-expansion heat pump system based on solar low-concentrating photovoltaic/thermal collectors," Renewable Energy, Elsevier, vol. 157(C), pages 718-730.
    7. Vallati, Andrea & Di Matteo, Miriam & Sundararajan, Mukund & Muzi, Francesco & Fiorini, Costanza Vittoria, 2024. "Development and optimization of an energy saving strategy for social housing applications by water source-heat pump integrating photovoltaic-thermal panels," Energy, Elsevier, vol. 301(C).
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    9. Jakubek, Dariusz & Ocłoń, Paweł & Nowak-Ocłoń, Marzena & Sułowicz, Maciej & Varbanov, Petar Sabev & Klemeš, Jiří Jaromír, 2023. "Mathematical modelling and model validation of the heat losses in district heating networks," Energy, Elsevier, vol. 267(C).
    10. Gholamibozanjani, Gohar & Farid, Mohammed, 2020. "Application of an active PCM storage system into a building for heating/cooling load reduction," Energy, Elsevier, vol. 210(C).
    11. Zhang, Sheng & Ocłoń, Paweł & Klemeš, Jiří Jaromír & Michorczyk, Piotr & Pielichowska, Kinga & Pielichowski, Krzysztof, 2022. "Renewable energy systems for building heating, cooling and electricity production with thermal energy storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    12. Mi, Peiyuan & Zhang, Jili & Han, Youhua & Guo, Xiaochao, 2022. "Operation performance study and prediction of photovoltaic thermal heat pump system engineering in winter," Applied Energy, Elsevier, vol. 306(PB).
    13. Chen, Yuzhu & Hua, Huilian & Wang, Jun & Lund, Peter D., 2021. "Thermodynamic performance analysis and modified thermo-ecological cost optimization of a hybrid district heating system considering energy levels," Energy, Elsevier, vol. 224(C).
    14. Kuczynski, Waldemar & Chliszcz, Katarzyna, 2023. "Energy and exergy analysis of photovoltaic panels in northern Poland," Renewable and Sustainable Energy Reviews, Elsevier, vol. 174(C).
    15. Wen, Qiangyu & Zhi, Ruiping & Wu, Yuting & Lei, Biao & Liu, Shanwei & Shen, Lili, 2020. "Performance optimization of a heat pump integrated with a single-screw refrigeration compressor with liquid refrigerant injection," Energy, Elsevier, vol. 207(C).
    16. Narula, Kapil & de Oliveira Filho, Fleury & Villasmil, Willy & Patel, Martin K., 2020. "Simulation method for assessing hourly energy flows in district heating system with seasonal thermal energy storage," Renewable Energy, Elsevier, vol. 151(C), pages 1250-1268.
    17. Wang, Like & Fan, Yee Van & Jiang, Peng & Varbanov, Petar Sabev & Klemeš, Jiří Jaromír, 2021. "Virtual water and CO2 emission footprints embodied in power trade: EU-27," Energy Policy, Elsevier, vol. 155(C).
    18. Giwa, Adewale & Yusuf, Ahmed & Dindi, Abdallah & Balogun, Hammed Abiodun, 2020. "Polygeneration in desalination by photovoltaic thermal systems: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 130(C).
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