Ecological Refrigerant Cascade Systems Replacement in Accordance with the EU Regulations.

Authors

  • Tarlea Gratiela Technical University of Civil Engineering | 66 Pache Protopopescu Boulevard
  • Vinceriuc Mioara Romanian General Association of Refrigeration | 66 Pache Protopopescu Boulevard
  • Temistocle Florin Technical University of Civil Engineering | 66 Pache Protopopescu Boulevard | Romanian General Association of Refrigeration

DOI:

https://doi.org/10.34641/clima.2022.30

Keywords:

Refrigerant, alternative mixture, GWP, TEWI factor

Abstract

The paper analyses ecological refrigeration cascade systems in accordance with Regulation (EU) no. 517/2014 of the European Parliament and Council of 16 April 2014. In present the cascade refrigeration plants work with refrigerants R23/ R404A. In accordance with the Regulation F-gas we will replace R23(GWP=14800) refrigerant with the new refrigerant gas R472A with the lowest GWP value (GWP=353) and R404A refrigerant with R448A. The refrigerant R472A is perfectly compatible with the commercial elements used in cascade refrigeration plants charged with R23. R472A [CO2/R32/134A] refrigerant can be used for ULT (Ultra Low Temperature) applications must reach a temperature lower than or equal to -70°C. The determination of the thermodynamic properties was performed with the help of the Refprop program. The TEWI factor analysis was performed for a cascade refrigeration installation which is located in the Laboratory of the Technical University of Civil Engineering Bucharest, Thermodynamics, Heat and Mass Transfer Department.

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Published

2022-04-23

How to Cite

Gratiela, T., Mioara, V., & Florin, T. (2022). Ecological Refrigerant Cascade Systems Replacement in Accordance with the EU Regulations. CLIMA 2022 Conference. https://doi.org/10.34641/clima.2022.30