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Simulation Research on a Cogeneration System of Low-Concentration Photovoltaic/Thermal Coupled with Air-Source Heat Pump

Author

Listed:
  • Dengxin Ai

    (Tianjin Electric Power Science & Research Institute, Tianjin 300384, China)

  • Ke Xu

    (Tianjin Electric Power Science & Research Institute, Tianjin 300384, China)

  • Heng Zhang

    (School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China)

  • Tianheng Chen

    (State Grid Tianjin Electric Power Company, Tianjin 300232, China)

  • Guilin Wang

    (Tianjin Electric Power Science & Research Institute, Tianjin 300384, China)

Abstract

In this paper, a low-concentration photovoltaic/thermal (LCPV/T) coupled with air-source heat pump (AHP) system is proposed which fully utilizes the heat generated by LCPV/T and improves the performance of the AHP. The system is built and investigated in the Transient System Simulation Program (TRNSYS) and an experimental room model is established to verify the feasibility of the system. The performance of the system is researched from the perspective of energy and exergy, and the system performance with LCPV/T and without LCPV/T is compared. Finally, the influence of the variation of key parameters of the system is studied. The results indicated that on the coldest day, the electrical efficiency of LCPV/T reached 10% which was equal to the electrical exergy efficiency. The maximum thermal efficiency was 31.88% while thermal exergy efficiency was 2.7%. The maximum coefficient of performance (COP) of AHP was 3.3, and the thermal exergy efficiency was 47%. The indoor temperature was maintained at about 20 °C in the heating season. When LCPV/T was adopted, the COP and thermal exergy efficiency of the AHP was generally higher than those without LCPV/T. In conclusion, the utilization of LCPV/T has a positive impact on the performance of the AHP.

Suggested Citation

  • Dengxin Ai & Ke Xu & Heng Zhang & Tianheng Chen & Guilin Wang, 2022. "Simulation Research on a Cogeneration System of Low-Concentration Photovoltaic/Thermal Coupled with Air-Source Heat Pump," Energies, MDPI, vol. 15(3), pages 1-25, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:1238-:d:744536
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    3. Wang, Na & Chu, Shangling & Cheng, Chao & Zhang, Heng & Chen, Haiping & Gao, Dan, 2024. "Performance research and multi-objective optimization of concentrating photovoltaic/thermal coupled air source heat pump heating system," Energy, Elsevier, vol. 296(C).

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