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IIR document

Field measurements of a R404A low-temperature supermarket refrigeration system retrofitted with R449A.
- Author(s) : MAKHNATCH P., MOTA BABILONI A., KHODABANDEH R., et al.
- Publication date: 2018/04/06
- Languages : English
- Keywords : Refrigerant, Retrofitting, Expérimentation, Performance, Supermarket, R404A, R449A, Drop-in, Low temperature
- Source: 5^thIIR International Conference on Sustainability and the Cold Chain. Proceedings: Beijing, Chine, 6-8 avril 2018
- Formats : PDF
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IIR document

Retrofit of lower GWP alternative R449A into an existing R404A indirect supermarket refrigeration system.
- Author(s) : MAKHNATCH P., MOTA BABILONI A., ROGSTAM J., et al.
- Publication date: 2017/04
- Languages : English
- Keywords : Refrigerating system, R449A, Supermarket, R404A, Performance, Expérimentation, Energy saving, Retrofitting
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
- Formats : PDF
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Recommended by the IIR / IIR document

R-449A configurations for energy efficiency improvement of an R-404A commercial refrigeration system.
- Author(s) : MOTA BABILONI A., GIMÉNEZ-PRADES P., FERNANDEZ MORENO A., MAKHNATCH P., NAVARRO-ESBRÍ J.
- Publication date: 2021/09/01
- Languages : English
- Keywords : Supermarket, Mixture, R449A, R404A, Simulation, Indirect system, Expansion, Modelling, COP, Energy efficiency
- Source: 6^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
- Formats : PDF
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IIR document

Application of an HFO blend (R-449A) in flooded R-22 chillers.
- Author(s) : SNYDER D., ALLGOOD C., PANSULLA A.
- Publication date: 2021/06
- Languages : English
- Keywords : HFO, Skating rink, Mixture, Flooded evaporator, Chiller, Industrial application, Retrofitting, R22, R449A, Expérimentation, Ice making plant, Substitute
- Source: 2^ndIIR Conference on HFO Refrigerants and Low GWP Blends
- Formats : PDF
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Performance evaluation of a flooded ice rink chiller retrofit from R-22 to R-449a
- Author(s) : SNYDER D., ALLGOOD C., MCRAE T.
- Publication date: 2021/05
- Languages : English
- Keywords : Skating rink, Chiller, Flooded evaporator, R22, R449A, Ice making plant, Retrofitting, Performance, Modelling, Energy consumption
- Source: 2021 Purdue Conferences. 18^thInternational Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Recommended by the IIR / IIR document

Outdoor condensing units Handling the low-GWP refrigerants including R448A and R449A
- Author(s) : UCHIDA S., TSUNEKI Y., HORI M., HASEGAWA K., SUZUKI H.
- Publication date: 2021/06
- Languages : English
- Keywords : Condensing unit, COP, R448a, R449A, R410A, Low GWP, Design, Rotary compressor, Cold storage, HFO, Mixture
- Source: 2^ndIIR Conference on HFO Refrigerants and Low GWP Blends
- Formats : PDF
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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.
- Author(s) : KIM C. H., KIM N. H.
- Publication date: 2021/08
- Languages : English
- Keywords : Heat transfer, Evaporation, HFC, HFO, Low GWP, R448a, R449A, R455A, R454C, R404A, Microfin tube, Expérimentation
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 128
- Formats : PDF
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IIR document

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.
- Author(s) : LEE B. M., GOOK H. H., LEE Y. W., PARK D. H., KIM N. H.
- Publication date: 2021/08
- Languages : English
- Keywords : Low GWP, Heat transfer, Pressure drop, R404A, R448a, R449A, R455A, R454C, Thermodynamic property, HFO, HFC
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 128
- Formats : PDF
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IIR document

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.
- Author(s) : KIM C. H., KIM N. H.
- Publication date: 2021/06
- Languages : English
- Keywords : HFC, Heat transfer coefficient, Pressure drop, Low GWP, R404A, Microfin tube, R448a, R449A, R455A, R454C, Expérimentation, Thermodynamic property
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 126
- Formats : PDF
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Prestazioni impiaoto frigorifero di un supermercato, con R-449A in confronto al R-404A.

Results from supermarket refrigerating system trial with R-449A in comparison with R-404A.
- Author(s) : GERSTEL J.
- Publication date: 2015/08
- Languages : Italian
- Source: Industria & Formazione - vol. 39 - n. 392
- Formats : PDF
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IIR document

Development of a dynamic model for ice-on-coil external melt storage systems.
- Author(s) : NONNEMAN J., VOS W. M. de, MONTEYNE H., et al.
- Publication date: 2019/08/24
- Languages : English
- Keywords : R404A, Simulation, Evaporator, Melting, Thermal energy storage, R449A, Ice
- Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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IIR document

Evaluation of R449A in field retrofits of R404A supermarket systems.
- Author(s) : MINOR B., GERSTEL J., ROBERTS N.
- Publication date: 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
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IIR document

Semi-empirical analysis of HFC supermarket refrigeration retrofit with advanced configurations from energy, environmental, and economic perspectives.
- Author(s) : MOTA BABILONI A., GIMÉNEZ-PRADES P., MAKHNATCH P., ROGSTAM J., FERNANDEZ MORENO A., NAVARRO-ESBRÍ J.
- Publication date: 2022/05
- Languages : English
- Keywords : Retrofitting, COP, Performance, Substitute, Supermarket, R404A, R449A, HFO, Mixture, HFC
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 137
- Formats : PDF
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Modeling a reciprocating compressor using a two-way coupled fluid and solid solver with automatic grid generation and adaptive mesh refinement.
- Author(s) : ROWINSKI D., SADIQUE J., OLIVEIRA S., et al.
- Publication date: 2018/07/09
- Languages : English
- Keywords : Reciprocating compressor, Cylinder, Flow rate, Pressure, Modelling, R404A, R449A, Temperature
- Source: 2018 Purdue Conferences. 24^thInternational Compressor Engineering Conference at Purdue.
- Formats : PDF
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IIR document

Theoretical model for calculating HFO based refrigerant performance in simple flooded evaporator systems.
- Author(s) : ROBERTS N. A., SIMONI L. D.
- Publication date: 2018/09
- Languages : English
- Keywords : Performance, Prediction, Thermodynamic property, R449A, R452A, Flooded evaporator, HFO, Modelling
- Source: 1^st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
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See all results in the Fridoc database

Supermarkets: retrofit of refrigerating systems from R404A to R449A

Two examples of retrofitting supermarket refrigerating systems from R404A to R449A.
- Publication date : 2017/08/09
- Subjects: HFCs alternatives
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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.
- Publication date : 2022/02/28
- Subjects: HFCs alternatives
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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.
- Publication date : 2017/12/12
- Subjects: HFCs alternatives
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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...
- Publication date : 2018/01/10
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Supermarket refrigerant retrofitting.

A few figures about supermarkets retrofitting their refrigeration systems with alternative refrigerants.
- Publication date : 2017/03/24
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EU: High-GWP HFC shortages and price rises

Several refrigeration associations in the EU have warned of severe refrigerant supply problems in their countries.
- Publication date : 2018/03/21
- Subjects: HFCs alternatives
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Evaluating lubricants for lower GWP refrigerant compressor operation.

Summary of an interesting paper from the recent Purdue conference.
- Publication date : 2017/03/06
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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.
- Publication date : 2017/08/24
- Subjects: Environment, HFCs alternatives
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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...
- Publication date : 2012/10/19
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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)
- Publication date : 2014/09/08
- Subjects: Regulation
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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.
- Publication date : 2018/01/02
- Subjects: Regulation
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US: EPA approves 3 hydrocarbon refrigerants for household and commercial uses

The US Environmental Protection Agency (EPA) has added 3 hydrocarbons as acceptable alternatives in household refrigerators and freezers, combination refrigerator-freezers, and commercial stand-alone units through EPA’s Significant New...
- Publication date : 2012/02/13
- Subjects: Regulation
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US: EPA expands the use of 4 hydrocarbons and R32

The US Environmental Protection Agency (EPA) recently authorised the use of four hydrocarbon refrigerants and R32 in various applications.
- Publication date : 2015/06/19
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Price increase for HFCs

Chemours, Mexichem and Arkema have announced 10-15% rise in cost of several HFCs from 1st January 2016
- Publication date : 2015/12/09
- Subjects: HFCs alternatives
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US: EPA raises hydrocarbon charge limit for home fridges

New US rules allowing greater charge sizes of hydrocarbon refrigerants in new domestic refrigerators and freezers entered into force on September 7, 2018.
- Publication date : 2018/09/20
- Subjects: Regulation
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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.
- Publication date : 2017/09/05
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