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IIR document
Characteristics of R454C and R455A as R404A alternatives in commercial refrigeration.
Replacement of R404A at high condensation temperature using R454C and R455A.
Surface tension measurement of refrigerant mixtures R448A and R455A by a differential capillary rise method.
Experimental drop-in replacement of R404A for warm countries using the low GWP mixtures R454C and R455A.
Measurements and modelling of R455A and R452B flow boiling heat transfer inside channels.
R-454C, R-459B, R-457A and R-455A as low-GWP replacements of R-404A: Experimental evaluation and optimization.
Local condensation heat transfer analysis of three-component mixture refrigerant R455A in plate heat exchanger.
Energy impact of the Internal Heat Exchanger in a horizontal freezing cabinet. Experimental evaluation with the R404A low-GWP alternatives R454C, R455A, R468A, R290 and R1270.
Chemical stability investigations of low GWP refrigerants R-454B, R-454C, R-455A, R-468A, and R-466A with lubricant.
Evaporation heat transfer of the low GWP alternative refrigerants (R-448A, R-449A, R-455A, R-454C) for R-404A in a microfin tube.
Flow boiling heat transfer and pressure drop data of non-azeotropic mixture R455A in a horizontal 6.0 mm stainless-steel 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.
A2L refrigerants leak and ignition testing for a walk-in cooler system.
Refrigeration sector monitoring
10 results
Member news: Carrier Transicold to offer R452A in the United States
Carrier Transicold proposes R452A as an alternative to R404A for refrigerated hauliers in the USA.
R452A performance and environmental impact in refrigerated transport
A paper presented at the IIR ICCC conference in China provides a review of R452A properties, system performance and LCCP impact as an alternative refrigerant in refrigerated transport.
Refrigerated transport: R452A as a “drop-in” alternative to R404A
Two major transport refrigeration companies recently announced they will offer R452A as an alternative to R404A in their transport refrigeration units.
New low GWP replacement for R404A in hermetically-sealed systems
A new lower GWP replacement for R404A, which blends an HFO and an HFC with a “natural” refrigerant is to be made commercially available next year.
Evaluating lubricants for lower GWP refrigerant compressor operation.
Summary of an interesting paper from the recent Purdue conference.
Alternatives to replace R404A for refrigerated transport
With about 5 million refrigerated vehicles operating worldwide, there is active research and development focusing on identifying alternatives to R404A, which is traditionally used in truck and trailer...
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...
New R134a alternatives in mobile air conditioning
Two new refrigerant blends are considered as an R134a alternative and "virtually non-flammable".
Refrigerant blends may offer alternative to R134a
Research released by SAE provide further evidence that Mexichem Fluor's refrigerant blends AC5 and AC6 could offer EU regulation compliant alternatives to R134a in automotive air conditioning.
CO2, one of the options for reducing the carbon footprint of refrigerated transport
Comparison of CO2 emissions from refrigerated transport units using R744 and HFC-134a and overview of solutions that could reduce the carbon footprint of this sector.
IIR news
1 result
IIR member news: Carrier Transicold
Carrier Transicold, major transport refrigeration company, will offer R452A as an optional alternative to R404A.
Encyclopedia of Refrigeration
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...
