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Experimental evaluation of low-GWP replacements of R-404A in a stand-alone commercial cabinet for fresh product.

Number: pap. n. 541

Author(s) : CALLEJA-ANTA D., NEBOT-ANDRÉS L., CATALÁN-GIL J., et al.

Summary

Commercial stand-alone refrigeration appliances (32 million units worldwide) are responsible of 2.6% world electric energy consumption. Most commercial refrigeration systems still rely on HFC refrigerants, such as R-134a and R-404A. However, the European F-Gas Regulation (EU 517/2014) has established a GWP refrigerant limit of 150 from 1/1/2022 on for this equipment.
Small systems were converted to R-290 cycles, however, medium to large ones are restricted by the 150g charge limit in Europe (IEC 60335-2-24) and must discover new alternatives. Using a stand-alone commercial cabinet for fresh product originally designed for R-404A, this work presents the performance and energy evaluation of the refrigeration system using low-GWP refrigerant substitutes, all of them with a GWP below 150. The work establishes the optimum refrigerant charge and the overall environmental impact of the cabinet using the newly developed refrigerants R-454C, R-455A, R-457A, and R-459B.

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Details

  • Original title: Experimental evaluation of low-GWP replacements of R-404A in a stand-alone commercial cabinet for fresh product.
  • Record ID : 30026425
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0541

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