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Recommended by the IIR / IIR document
Outdoor condensing units Handling the low-GWP refrigerants including R448A and R449A
IIR document
Evaporation heat transfer of the low GWP alternative refrigerants (R-448A, R-449A, R-455A, R-454C) for R-404A in a microfin tube.
Condensation heat transfer and pressure drop of low GWP R-404A alternative refrigerants (R-448A, R-449A, R-455A, R-454C) in a 5.6 mm inner diameter horizontal smooth tube.
Condensation heat transfer and pressure drop of low GWP R-404A-alternative refrigerants (R-448A, R-449A, R-455A, R-454C) in a 7.0-mm outer-diameter horizontal microfin tube.
Sustitución del R404A en un sistema de refrigeración de media y baja temperatura mediante ciclos de compresión paralela con el R-449A.
Substitution of R404A in a medium and low temperature refrigeration system using parallel compression cycles with R-449A.
Low-GWP alternatives for an R-449A commercial refrigeration system.
Operation parameters of a walk-in cooler after retrofiting R404A with R448A.
Study of R-404A and R-448A refrigerants in low temperature refrigeration of electronics.
Field measurements of a R404A low-temperature supermarket refrigeration system retrofitted with R449A.
Retrofit of lower GWP alternative R449A into an existing R404A indirect supermarket refrigeration system.
Energy efficiency and system performance of R-454C, R-449A, and R-744 in food retail refrigeration systems: a comparison.
Energetic efficiency of cooling circuit depending on the charge of the previous and new alternative refrigerant.
Surface tension measurement of refrigerant mixtures R448A and R455A by a differential capillary rise method.
R-449A configurations for energy efficiency improvement of an R-404A commercial refrigeration system.
Refrigeration sector monitoring
4 results
R410A/R22 alternatives for AC in high-ambient temperature environments: R32 and R290
The final US Oak Ridge National Laboratory report – presented during MOP27 in Dubaï – compares the performance of low-GWP alternative refrigerants to HFC R410A in mini-split air conditioners (ACs) under high-ambient-temperature conditions.
Air conditioning: which refrigerant will become the leading alternative to R410A?
R32 is being adopted widely for residential and small commercial air conditioning applications, but R466A, R452B and R454B are promising candidates, especially for larger size systems.
Mexichem, DuPont and Honeywell announced new HFO-based alternatives for R404A and R134a
M. Cooper, sales manager for Mexichem, revealed in RAC the manufacturer’s offering for stationary refrigeration would be based on its AC5 refrigerant (R444A) which has been undergoing development as a mobile air-conditioning refrigerant....
The US Environmental Protection Agency (EPA) updates its list of low GWP refrigerants
The US EPA has added new lower GWP refrigerants and expanded the acceptable uses of others in its latest changes to the Significant New Alternatives Policy (SNAP) programme.
IIR news
2 results
Member news: Koura offers an alternative refrigerant to R1234yf for mobile air conditioning
Koura offers a direct replacement solution for R1234yf in mobile air conditioning.
Member news: Latest news from Danfoss
Danfoss is improving its range of electric expansion valves and has started construction of an energy-efficient supermarket.
Encyclopedia of Refrigeration
1 result
Global warming potential (GWP) of HFC refrigerants
Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...
