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IIR document
Viscosity measurements of binary mixtures R-454B and R-454C at low temperature condition.
Characterization of MOS sensors for R-32 and R-454B leaks.
Condensation of R450A and R454B inside a compact microfin tube.
Experimental study and modelling of density and viscosity of near-Azeotropic mixture refrigerant R454B.
SCOP experimental comparison of refrigerants R454B and R410A in a domestic heat pump.
Recommended by the IIR / IIR document
Experimental evaluation of R32, R452B and R454B as alternative refrigerants for R410A in a refrigeration system.
Monitoring of two ground-source heat pumps working with R454B and R600a in a pilot facility.
In tube condensation heat transfer and pressure drop for R454B and R32—Potential replacements for R410A.
Experimental study of R454B drop-in performance in a R410A liquid-to-water heat pump.
Flow boiling heat transfer of zeotropic mixture refrigerants R454B and R449A in a smooth horizontal tube.
Experimental and numerical study of heat transfer in evaporation and condensation with R410A, R32 and R454B in a finned tube heat exchanger.
Chemical stability investigations of low GWP refrigerants R-454B, R-454C, R-455A, R-468A, and R-466A with lubricant.
Numerical modelling and seasonal performance analysis of air-to- water heat pumps using low-gwp refrigerant R-454B as an alternative to R-410A.
Computationally efficient property calculation for mixed refrigerants using weighted piecewise polynomial regression.
Assessing low-GWP refrigerants in ground source heat pump systems: long-term thermal performance under varied geological conditions and cold climate.
Refrigeration sector monitoring
7 results
US AC companies act to ease R454B refrigerant shortage
US air conditioning manufacturers are working to resolve the R454B refrigerant shortage caused by supply chain issues and rising demand after the US AIM Act’s implementation.
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.
Purdue highlights: R410A “drop-ins”performance
According to a paper presented at Purdue in July 2016, two new “drop-in” alternatives to R410A are said to have exhibited very similar performance in experimental tests. This paper will be available in Fridoc in te near future.
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...
Air conditioning: towards a relaxation of the rules for the use of flammable refrigerants
While the European Commission is paving the way for the use of flammable refrigerants as an alternative for split systems, the current revision of the international standard IEC 60335-2-40 should allow higher...
New R134a alternatives in mobile air conditioning
Two new refrigerant blends are considered as an R134a alternative and "virtually non-flammable".
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.
IIR news
1 result
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
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...
