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IIR document
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.
Surface tension measurement of refrigerant mixtures R448A and R455A by a differential capillary rise method.
Numerical study on the composition ratio change of R448a in a vapor injection refrigeration system.
Experimental data during flow boiling of refrigerants R448A and R452A.
The two-phase flow boiling heat transfer coefficient of r448a inside multiport mini-channel tube.
Condensation heat transfer of zeotropic refrigerant mixtures R407C and R448A in a horizontal smooth tube.
Recommended by the IIR / IIR document
Outdoor condensing units Handling the low-GWP refrigerants including R448A and R449A
Comparison of R-404A, R-448A and R-452A as drop-in replacements for R-218 in special applications.
Experimental study of R448A flow boiling in a 24-port microchannel tube.
Flow boiling heat transfer performance of R448A inside multiports mini-channel tubes with different geometry.
Development of portable refrigerator “Cold Roll Box” using new refrigerant R448A.
Comparison of R404A condensation heat transfer and pressure drop with low global warming potential replacement candidates R448A and R452A.
Evaporation heat transfer of the low GWP alternative refrigerants (R-448A, R-449A, R-455A, R-454C) for R-404A in a microfin tube.
Refrigeration sector monitoring
14 results
Supermarkets: retrofit of refrigerating systems from R404A to R449A
Two examples of retrofitting supermarket refrigerating systems from R404A to R449A.
Replacement of R404A in supermarkets
R404A is particularly targeted by the EU F-gas Regulation and many refrigerant producers announced important price rises. Various option can be considered to replace it.
Summary of two papers of the 9th International Conference on Compressors and Coolants (ICCC2017)
The IIR 9th International Conference on Compressors and Coolants (ICCC2017), which took place in Bratislava, Slovakia, in September 2017, addressed advances in compressors but also refrigerating technologies and alternative refrigerants, as...
Japan: update of the High Pressure Gas Safety Act
Since July 2017, revisions of this regulation expedite the adoption of alternative refrigerants with lower GWP.
Supermarket refrigerant retrofitting.
A few figures about supermarkets retrofitting their refrigeration systems with alternative refrigerants.
EU: High-GWP HFC shortages and price rises
Several refrigeration associations in the EU have warned of severe refrigerant supply problems in their countries.
Evaluating lubricants for lower GWP refrigerant compressor operation.
Summary of an interesting paper from the recent Purdue conference.
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.
Low GWP refrigerants for Olympic ice rinks in China
For the Olympic and Paralympic Winter Games in Beijing, nine ice rinks are used. five use CO2 as a refrigerant, and four use R449A.
US: a step closer to authorizing HCs in vending machines?
A submission by A.S. Trust & Holdings requesting SNAP approval for the use of hydrocarbon refrigerant R441A in new vending machines has been found complete by the US Environmental Protection Agency (EPA). As a result, “R441A may be sold in new...
US EPA proposes acceptance of hydrocarbons and R32 in 6 applications
The US EPA has proposed a range of acceptable uses for hydrocarbon refrigerants – R600a, R290, R170 and R441A along with R32 under the EPA’s Significant New Alternatives Policy (SNAP)
IJR highlights: review of low-GWP alternative refrigerants
In a recent review article based on over 60 published studies and published in the International Journal of Refrigeration, Chinese researchers have compared nearly 40 alternative low-GWP refrigerants in terms of...
Price increase for HFCs
Chemours, Mexichem and Arkema have announced 10-15% rise in cost of several HFCs from 1st January 2016
Consequences of the EU F-Gas Regulation: uncertainty on the future availability of R404A
Anyone installing equipment with R404A now will probably have to retrofit to a lower GWP refrigerant in the next few years.
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.
New IIR conference on the application of HFO Refrigerants
From September 2 to 5, 2018 in Birmingham (UK), the Institute of Refrigeration (IOR) will host the inaugural IIR International Conference on the application of HFO Refrigerants.
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...
