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Energy, exergy, economic and environmental (4E) analysis of zeotropic mixture recuperative heat pump and vapor injection heat pump

Author

Listed:
  • Li, Jiaxu
  • Song, Qinglu
  • Wu, Wei
  • Wang, Dechang
  • Jiang, Xianguo
  • Zhou, Sai

Abstract

Air source heat pump is an effective energy saving and emission reduction technology. Large temperature span heating is an important factor limiting the performance of heat pumps. In this paper, a new type of zeotropic mixture recuperative heat pump and vapor injection heat pump were studied for heating water from 50 °C to 55 °C under the ambient temperature from −30 °C to 0 °C. An experimental bench of vapor injection heat pump system was built to measure the heating performance. Under the ambient temperature of 0 °C, R290/R1233zd(E) (0.8/0.2) has comprehensive performance advantages, with the COP of 3.44 and volume heating capacity of 2587 kJ m−3. Compared with the vapor injection heat pump, the zeotropic mixture recuperative heat pump has a higher COP. To further explore the performance of the two heat pumps in different environments, seven cities in China were chosen to analyze the seasonal, economic and emission performances of the two systems. Changsha has the lowest latitude with the highest seasonal COP of 3.86. In all operating conditions, the zeotropic mixture recuperative heat pump has a lower payback period and annual emissions. Under all operating conditions, the compressor has the lowest exergoeconomic factor.

Suggested Citation

  • Li, Jiaxu & Song, Qinglu & Wu, Wei & Wang, Dechang & Jiang, Xianguo & Zhou, Sai, 2025. "Energy, exergy, economic and environmental (4E) analysis of zeotropic mixture recuperative heat pump and vapor injection heat pump," Energy, Elsevier, vol. 317(C).
    • Handle: RePEc:eee:energy:v:317:y:2025:i:c:s0360544225003238
    DOI: 10.1016/j.energy.2025.134681
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    Cited by:

    1. Cheng Ren & Qinglu Song & Shoujun Sun & Chuantong Zhang & Dechang Wang, 2025. "Experimental Study on Flow Boiling Heat Transfer of Zeotropic Mixture R290/R601a in a Mini-Channel," Energies, MDPI, vol. 18(8), pages 1-20, April.

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