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Thermo-economic analysis of a solar district heating plant with an air-to-water heat pump

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  • Xu, Yi
  • Zhan, Chenxuan
  • Jensen, Adam R.
  • Gao, Meng
  • Kong, Weiqiang
  • Fan, Jianhua

Abstract

Solar district heating systems are essential in reducing carbon emissions and alleviating the energy crisis. By integrating with air-to-water heat pumps, it is possible to enhance the system’s efficiency and flexibility. However, the complementary mechanisms and coupling effects between the heat pump and the other components of the system are not clear. To address these issues, it is necessary to investigate the thermo-economic performance of the system, taking into account energy price fluctuations to achieve a more efficient and economically viable operational model. This study focuses on a solar district heating system in the Danish city of Ørum and investigates the impact of integrating a large-scale air-to-water heat pump. Based on energy and economic analyses, the impact of the heat pump on the system efficiency and the levelized cost of heat are investigated for 2020 and 2022. The results show that the heat pump can convert low-cost electricity into heat which will be stored in the tank, increasing the tank’s heat storage content by 1.2 times. The medium to low-temperature water in the tank can preheat the heat pump’s compressor, raising the COP of the heat pump from 3.3 to 3.5 and increasing the annual utilization cycle of the tank by 1.4 times by reducing the return water temperature to the bottom of the tank. Additionally, the system performance has been improved due to the installation of the heat pump, which increased the system COP from 1.22 in 2020 to 2.62 in 2022. Subsequently, the CO2 emission has been decreased from 192 kg/MWh to 74 kg/MWh with a larger share of sustainable energy. Due to the heat pump operation, the system-levelized cost of heat could be reduced to 68.6 EUR/MWh, compared to 94 EUR/MWh if the heat pump is removed. The investigation also revealed that the heat pump improved the flexibility of the heating system in response to energy prices, especially during the 2022 energy crisis in Europe. The findings of the paper provide a good reference for large solar heating applications.

Suggested Citation

  • Xu, Yi & Zhan, Chenxuan & Jensen, Adam R. & Gao, Meng & Kong, Weiqiang & Fan, Jianhua, 2024. "Thermo-economic analysis of a solar district heating plant with an air-to-water heat pump," Renewable Energy, Elsevier, vol. 237(PA).
    • Handle: RePEc:eee:renene:v:237:y:2024:i:pa:s0960148124015581
    DOI: 10.1016/j.renene.2024.121490
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    1. Alessandro Casasso & Pietro Capodaglio & Fulvio Simonetto & Rajandrea Sethi, 2019. "Environmental and Economic Benefits from the Phase-out of Residential Oil Heating: A Study from the Aosta Valley Region (Italy)," Sustainability, MDPI, vol. 11(13), pages 1-16, July.
    2. Ushamah, Hafiz Muhammad & Ahmed, Naveed & Elfeky, K.E. & Mahmood, Mariam & Qaisrani, Mumtaz A. & Waqas, Adeel & Zhang, Qian, 2022. "Techno-economic analysis of a hybrid district heating with borehole thermal storage for various solar collectors and climate zones in Pakistan," Renewable Energy, Elsevier, vol. 199(C), pages 1639-1656.
    3. Nuytten, Thomas & Claessens, Bert & Paredis, Kristof & Van Bael, Johan & Six, Daan, 2013. "Flexibility of a combined heat and power system with thermal energy storage for district heating," Applied Energy, Elsevier, vol. 104(C), pages 583-591.
    4. Tian, Zhiyong & Perers, Bengt & Furbo, Simon & Fan, Jianhua, 2018. "Analysis and validation of a quasi-dynamic model for a solar collector field with flat plate collectors and parabolic trough collectors in series for district heating," Energy, Elsevier, vol. 142(C), pages 130-138.
    5. Chen, Erjian & Xie, Mingxi & Jia, Teng & Zhao, Yao & Dai, Yanjun, 2022. "Performance assessment of a solar-assisted absorption-compression system for both heating and cooling," Applied Energy, Elsevier, vol. 328(C).
    6. Munćan, Vladimir & Mujan, Igor & Macura, Dušan & Anđelković, Aleksandar S., 2024. "The state of district heating and cooling in Europe - A literature-based assessment," Energy, Elsevier, vol. 304(C).
    7. Tian, Zhiyong & Perers, Bengt & Furbo, Simon & Fan, Jianhua, 2017. "Annual measured and simulated thermal performance analysis of a hybrid solar district heating plant with flat plate collectors and parabolic trough collectors in series," Applied Energy, Elsevier, vol. 205(C), pages 417-427.
    8. Huang, Junpeng & Fan, Jianhua & Furbo, Simon, 2019. "Feasibility study on solar district heating in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 108(C), pages 53-64.
    9. Harrestrup, M. & Svendsen, S., 2014. "Heat planning for fossil-fuel-free district heating areas with extensive end-use heat savings: A case study of the Copenhagen district heating area in Denmark," Energy Policy, Elsevier, vol. 68(C), pages 294-305.
    10. Zhao, Jinling & Lyu, Lianyi & Li, Xuexin, 2020. "Numerical analysis of the operation regulation in a solar heating system with seasonal water pool thermal storage," Renewable Energy, Elsevier, vol. 150(C), pages 1118-1126.
    11. Tschopp, Daniel & Tian, Zhiyong & Berberich, Magdalena & Fan, Jianhua & Perers, Bengt & Furbo, Simon, 2020. "Large-scale solar thermal systems in leading countries: A review and comparative study of Denmark, China, Germany and Austria," Applied Energy, Elsevier, vol. 270(C).
    12. Fragaki, Aikaterini & Andersen, Anders N. & Toke, David, 2008. "Exploration of economical sizing of gas engine and thermal store for combined heat and power plants in the UK," Energy, Elsevier, vol. 33(11), pages 1659-1670.
    13. Renaldi, Renaldi & Friedrich, Daniel, 2019. "Techno-economic analysis of a solar district heating system with seasonal thermal storage in the UK," Applied Energy, Elsevier, vol. 236(C), pages 388-400.
    14. Aguilera, José Joaquín & Meesenburg, Wiebke & Markussen, Wiebke Brix & Zühlsdorf, Benjamin & Elmegaard, Brian, 2024. "Real-time monitoring and optimization of a large-scale heat pump prone to fouling - towards a digital twin framework," Applied Energy, Elsevier, vol. 365(C).
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