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Study of Performance Changes in Centrifugal Compressors Working in Different Refrigerants

Author

Listed:
  • Yintao Wang

    (Danfoss Turbocor Compressors, Tallahassee, FL 32310, USA)

  • Jin Yan

    (Danfoss Turbocor Compressors, Tallahassee, FL 32310, USA)

Abstract

Centrifugal compressors are commonly used in heating, ventilation, and air conditioning (HVAC) systems. The current generation of refrigerants in HVAC systems have very low ozone depletion potential, but most of them are still considered as containing high global warming potential (GWP) chemicals. Facing the regulatory pressure to eliminate the high-level GWP refrigerants, some of the existing HVAC systems will need to switch to low-GWP refrigerants. In this paper, we studied the performance changes in a refrigerant centrifugal compressor when switching from R134a to R1234ze(E) and R1234yf through a method that combined numerical simulation and an 1D meanline code. By combining these two methods, a reliable compressor performance change prediction was generated using limited results from the computational fluid dynamics (CFD) simulations. The results show that the property differences in the working fluid can significantly change the refrigerant compressor performance, including the compressor efficiency, pressure ratio, power consumption, working range and cooling capacity.

Suggested Citation

  • Yintao Wang & Jin Yan, 2024. "Study of Performance Changes in Centrifugal Compressors Working in Different Refrigerants," Energies, MDPI, vol. 17(11), pages 1-17, June.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:11:p:2784-:d:1409919
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