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Evaluación experimental del R452b como sustituto directo al R410a en una bomba de calor líquido-agua.
Experimental evaluation of R452b as a direct substitute for R410a in a liquid-water heat pump.
Performance evaluation on R410A alternatives of R32, R452B, R447B.
IIR document
Analysis of refrigerant R452B in use-phase versus pristine conditions using gas chromatography.
Risk assessment of catastrophic leak of R452B from packaged unit into a residential space.
Recommended by the IIR / IIR document
Experimental evaluation of R32, R452B and R454B as alternative refrigerants for R410A in a refrigeration system.
Measurements and modelling of R455A and R452B flow boiling heat transfer inside channels.
AHRI research activities on flammable refrigerants.
Viability of various ignition sources to ignite A2L refrigerant leaks.
A2L refrigerants leaks and ignitions testing under whole room scale.
A high efficiency rooftop air conditioning system using multi-speed compressors.
Evaluation and optimization of system performance using HFO-mix refrigerants for VRF and mini-split air-conditioner.
Compositional fractionation studies of R410A alternative R452B or DR55 and their impact on flammability behavior and safety implications.
Suitable low Global Warming Potential (GWP) refrigerants for cold climate heat pumps (CCHPs) for residential applications based on simulated performance.
Condensation heat transfer of low-GWP blends for air conditioning applications.
Refrigeration sector monitoring
11 results
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.
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.
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.
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...
Gas leak detection technologies
Bacharach, a manufacturer of refrigerant and gas leak detectors, recently extended its gas detectors by two HFOs. The company also produces leak detectors for CO2 systems.
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...
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.
New R134a alternatives in mobile air conditioning
Two new refrigerant blends are considered as an R134a alternative and "virtually non-flammable".
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.
IIR news
2 results
IIR member news: Carrier Transicold
Carrier Transicold, major transport refrigeration company, will offer R452A as an optional alternative to R404A.
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...
