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IIR document

Performance evaluation of low-GWP Refrigerants for refrigerated display cabinet.

Number: 1046

Author(s) : MIYAOKA Y., GIANNETTI N., SAITO K.

Summary

The Kigali Amendment to the Montreal Protocol came into effect in 2019, and the development of heat pump systems using low-GWP refrigerants is now an urgent task. Refrigerated display cabinets (RDC) have a higher refrigerant leakage rate than air conditioners. In addition, because they operate 24 hours a day, 365 days a year, they consume a lot of energy and generate a correspondingly large amount of CO2 emissions, which must also be taken into consideration. Therefore, this research aims to contribute to the efficient operation of refrigerated display cabinets using low-GWP refrigerants by performing drop-in tests of low-GWP refrigerants into a refrigerated display cabinet and corresponding numerical simulations. Numerical results were found in accurate agreement with experiments and demonstrated that the COP of R454C was about 10% higher than that of R404A in corresponding conditions. Accordingly, R454C can be expected to be a promising substitute of R404A for such application cases.

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Pages: 13 p.

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Details

  • Original title: Performance evaluation of low-GWP Refrigerants for refrigerated display cabinet.
  • Record ID : 30032577
  • Languages: English
  • Subject: HFCs alternatives
  • Source: 8th IIR International Conference on Sustainability and the Cold Chain. Proceedings: June 9-11 2024
  • Publication date: 2024/06/11
  • DOI: http://dx.doi.org/10.18462/iir.iccc2024.1046

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