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Experimental and theoretical analysis of a dual-source heat pump system with PVT assistance and adaptive combined throttling regulation for summer applications

Author

Listed:
  • Song, Zhiying
  • Zhang, Yuzhe
  • Tang, Yayun
  • Ji, Jie

Abstract

Most existing solar-assisted heat pumps (SAHP) mainly focus on heating performance, while refrigeration is rarely noticed. Although hot water is still needed in summer, the demand is low. Even if some SAHPs realized multi functions, the cooling is either limited or poor in performance and adjustment. To solve the problems, the multi-function PVT assisted PV-air double source heat pump (MF-PVTA-DSHP) is designed in this paper. Summer days, the PVT mode could provide domestic hot water and electricity with low consumption. Tests reveal 2.21 × 107 J heat and 3.633 kWh power production in a sunny summer day. Summer cooling and winter heating conditions are quite different, requiring more flexible throttling capacity. The EEV and capillary are innovatively composed in the heat pump to expand its modulation for cooling condition and the energy efficiency. Results show that the creative strategy optimized the superheat degree at the compressor inlet, decreasing the temperature difference from 8.3 °C to 3.9 °C and power consumption by 20 W at the beginning, improving the mean COP from 3.36 to 3.43. Furthermore, taking advantage of radiative cooling of PV, the system could use air superimposed radiative cooling (air-RC) condenser to lower condensing temperature & throttling supercooling, and elevate cooling capacity. The cooling COP could be improved by almost 1.5 from experiment, showing superb exalting potential.

Suggested Citation

  • Song, Zhiying & Zhang, Yuzhe & Tang, Yayun & Ji, Jie, 2025. "Experimental and theoretical analysis of a dual-source heat pump system with PVT assistance and adaptive combined throttling regulation for summer applications," Applied Energy, Elsevier, vol. 397(C).
    • Handle: RePEc:eee:appene:v:397:y:2025:i:c:s0306261925010542
    DOI: 10.1016/j.apenergy.2025.126324
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    1. Abbas, Sajid & Zhou, Jinzhi & Hassan, Atazaz & Yuan, Yanping & Yousuf, Saima & Sun, Yafen & Zeng, Chao, 2023. "Economic evaluation and annual performance analysis of a novel series-coupled PV/T and solar TC with solar direct expansion heat pump system: An experimental and numerical study," Renewable Energy, Elsevier, vol. 204(C), pages 400-420.
    2. Song, Zhiying & Ji, Jie & Zhang, Yuzhe & Cai, Jingyong & Li, Zhaomeng, 2022. "Experimental and numerical investigation on a photovoltaic heat pump with two condensers: A micro-channel heat pipe/thermoelectric generator condenser and a submerged coil condenser," Energy, Elsevier, vol. 242(C).
    3. Lämmle, Manuel & Bongs, Constanze & Wapler, Jeannette & Günther, Danny & Hess, Stefan & Kropp, Michael & Herkel, Sebastian, 2022. "Performance of air and ground source heat pumps retrofitted to radiator heating systems and measures to reduce space heating temperatures in existing buildings," Energy, Elsevier, vol. 242(C).
    4. Yang, Lidong & Gao, Qiang & Xu, Qiang & Yang, Liwei & Xu, Rongji & Chen, Hongbing & Wang, Huasheng, 2024. "Study on performance of direct-expansion heat pump water heater integrated uninsulated micro-channel PV/T solar collector," Energy, Elsevier, vol. 303(C).
    5. Song, Zhiying & Ji, Jie & Cai, Jingyong & Zhao, Bin & Li, Zhaomeng, 2021. "Investigation on a direct-expansion solar-assisted heat pump with a novel hybrid compound parabolic concentrator/photovoltaic/fin evaporator," Applied Energy, Elsevier, vol. 299(C).
    6. Zhou, Jinzhi & Zhao, Xudong & Ma, Xiaoli & Qiu, Zhongzhu & Ji, Jie & Du, Zhenyu & Yu, Min, 2016. "Experimental investigation of a solar driven direct-expansion heat pump system employing the novel PV/micro-channels-evaporator modules," Applied Energy, Elsevier, vol. 178(C), pages 484-495.
    7. Song, Zhiying & Ji, Jie & Zhang, Yuzhe & Cai, Jingyong & Li, Zhaomeng, 2022. "Research on the multifunction concentrated solar-air heat pump system," Renewable Energy, Elsevier, vol. 198(C), pages 679-694.
    8. Zhang, Tao & Zhang, Yufan & Shi, Zhengrong & Pei, Gang & Cai, Jingyong, 2022. "Preliminary investigation on the switching time of a photovoltaic solar-assisted heat-pump/heat-pipe hybrid system," Applied Energy, Elsevier, vol. 324(C).
    9. Gang, Pei & Huide, Fu & Huijuan, Zhu & Jie, Ji, 2012. "Performance study and parametric analysis of a novel heat pipe PV/T system," Energy, Elsevier, vol. 37(1), pages 384-395.
    10. Cai, Jingyong & Ji, Jie & Wang, Yunyun & Huang, Wenzhu, 2017. "Operation characteristics of a novel dual source multi-functional heat pump system under various working modes," Applied Energy, Elsevier, vol. 194(C), pages 236-246.
    11. Song, Zhiying & Ji, Jie & Zhang, Yuzhe & Cai, Jingyong, 2023. "Numerical exploration and experimental validation of a tri-generation heat pump system in cooling mode," Energy, Elsevier, vol. 273(C).
    12. Zhang, Feng & Cai, Jingyong & Ji, Jie & Han, Kedong & Ke, Wei, 2020. "Experimental investigation on the heating and cooling performance of a solar air composite heat source heat pump," Renewable Energy, Elsevier, vol. 161(C), pages 221-229.
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