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IIR document

Viscosity measurements of R32 and R410A to 350?MPa.

• Author(s) : BAIR S., LAESECKE A.
• Publication date: 2017/11
• Languages : English
• Keywords : Viscosity, R410A, Comparison, Measurement, R32
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 83
• Formats : PDF

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. 

• Author(s) : ORTEGA I., SIERES J., CERDEIRA F., ALVAREZ E., DOPAZO J. A.
• Publication date: 2020/11/11
• Languages : Spanish
• Keywords : Heat pump, Drop-in, Refrigerant, R410A, R452B, Mixture, HFC, HFO, Expérimentation
• Source: X Congreso Ibérico y VIII Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2020.
• Formats : PDF

Análisis de prestaciones de una bomba de calor para calefacción con R410A mediante IMST-ART.

Performance analysis of a heat pump for heating operating with R410A, by using the IMST-ART simulation tool.

• Author(s) : LÓPEZ-JUÁREZ E., SÁNCHEZ-MORENO-GINER L., GONZÁLVEZ-MACIÁ J.
• Publication date: 2018/06/19
• Languages : Spanish
• Keywords : R410A, Comparison, Air-water, Subcooling, Heat pump, Modelling, Expérimentation, Condensation
• Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
• Formats : PDF

IIR document

Pressure drop during condensation of R410A inside horizontal multiport Minichannels.

• Author(s) : VU P. Q., CHOI K., OH J., et al.
• Publication date: 2017/04/23
• Languages : English
• Keywords : R410A, Minichannel, Expérimentation, Shell and tube exchanger, Condensation, Heat exchanger, Pressure drop
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

IIR document

Condensation heat transfer of R410A on outside of horizontal smooth and three-dimensional enhanced tubes.

• Author(s) : LI W., SUN Z. C., GUO R. H., et al.
• Publication date: 2019/02
• Languages : English
• Keywords : R410A, Horizontal tube, Correlation, Heat transfer, Expérimentation, Flow, Condensation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 98
• Formats : PDF

IIR document

Energy efficiency comparison of heat pumping systems using R744 and R410A as refrigerant.

• Author(s) : JIN Z., EIKEVIK T. M., NEKSÅ P., et al.
• Publication date: 2016/08/21
• Languages : English
• Keywords : R410A, Comparison, R744, Heat pump, Ground-source system, Energy efficiency
• Source: 12^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
• Formats : PDF

Condensation heat transfer of R410a inside multiport minichannels with different cross-sectional geometries.

• Author(s) : HOANG H. N., AGUSTIARINI N., PHAM V. D., OH J. T.
• Publication date: 2021/05
• Languages : English
• Keywords : Condensation, Heat transfer, R410A, Minichannel, Geometry, Tube, Expérimentation, Thermodynamic property
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Experiment and visualization of R410A flow distribution within the vertical header of microchannel heat exchanger.

• Author(s) : REDO M. A., GIANNETTI N., JEONG J., et al.
• Publication date: 2017/04/23
• Languages : English
• Keywords : R410A, Microchannel, Expérimentation, Evaporator, Flow, Heat exchanger, Distribution
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

Evaluación de un condensador basado en minicanales trabajando con R32 y R410a. Estimación numérica de comportamiento basado en medidas experimentales.

Evaluation of a condenser based on mini-channels working with R32 and R410a. Numerical performance estimate based on experimental measurements.

• Author(s) : LÓPEZ BELCHÍ A., ILLÁN GÓMEZ F., GARCÍA-CASCALES J. R.
• Publication date: 2018/06/19
• Languages : Spanish
• Keywords : R410A, Heat transfer coefficient, Comparison, Minichannel, R32, Modelling, GWP, Energy efficiency, Condenser
• Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
• Formats : PDF

IIR document

Artificial neural network models for depicting mass flow rate of R22, R407C and R410A through electronic expansion valves.

• Author(s) : SALEH B., ALY A. A.
• Publication date: 2016/03
• Languages : English
• Keywords : Refrigerating system, R410A, R407C, Electronic expansion valve, Artificial neural network, R22
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 63
• Formats : PDF

Performance investigation of two-stage heat pump with vapor injection using R410A as working fluid.

• Author(s) : WANG Y., YE Z., CAO F.
• Publication date: 2018/07/09
• Languages : English
• Keywords : R410A, Vapour, Heat pump, Injection, Expérimentation, COP, Heating, Heat exchanger, Scroll compressor
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Experimental investigations on performance of evaporator and condenser of R410A inside a novel brazed plate heat exchanger.

• Author(s) : WEI W. J., TUCKER J., XU Y.
• Publication date: 2015/08/16
• Languages : English
• Keywords : R410A, Performance, Expérimentation, Evaporator, Refrigerant, Condenser, Heat exchanger, Plate exchanger
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Experimental analysis of oil flooded R410A scroll compressor.

• Author(s) : RAMARAJ S., YANG B., BRAUN J. E., et al.
• Publication date: 2014/10
• Languages : English
• Keywords : R410A, Injection, Oil, Expérimentation, Scroll compressor
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 46
• Formats : PDF

IIR document

Drop in life cycle climate performance of low GWP R410A alternatives for heat pumps.

• Author(s) : LI G., ALABDULKAREM A., HWANG Y., et al.
• Publication date: 2014/08/02
• Languages : English
• Keywords : R410A, Drop-in, R32, Substitute, Heat pump, Performance, Mixture, LCCP, GWP, Refrigerant
• Source: 11^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
• Formats : PDF

IIR document

Performance comparison of optimized R410A replacements.

• Author(s) : KUJAK S., SCHULTZ K.
• Publication date: 2015/08/16
• Languages : English
• Keywords : R410A, R1234yf, Comparison, R32, R1234ze, Substitute, Performance, Flammability, GWP, Refrigerant
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

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.

• Publication date : 2016/09/07

R32 vs HFOs as alternatives to R410A

During the IIR-co-sponsored 14thInternational Refrigeration and Air Conditioning Conference at Purdue, USA, in July 2012, H. Pham and R. Rajendran presented the results of an evaluation of R32, HFO1234yf, HFO1234ze and various HFO blends as...

• Publication date : 2013/01/07

Transport: Hapag-Lloyd switches from R134a to R513A

The German shipping company Hapag-Lloyd has recently purchased 1,000 containers chilled with R513A.

• Publication date : 2018/02/20

HFO1123: a new alternative to R410A?

Japanese firm Asahi Glass announced its own refrigerant for use in air conditioning systems, based on the new HFO molecule HFO1123.

• Publication date : 2014/04/28

Performance test results of alternative low-GWP refrigerants to R410A

Emerson Climate Technologies has published the results of drop-in tests of new low GWP refrigerants, L41b and DR5, in a R410A scroll compressor.

• Publication date : 2014/06/18

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.

• Publication date : 2019/05/29
• Subjects: HFCs alternatives

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.

• Publication date : 2016/05/11

US: R134a, R410A and R407C could be banned in chillers from 2025

AHRI and NRDC issue joint letter supporting EPA SNAP proposal to prohibit R134a, R410A and R407C in new chillers from 2025.

• Publication date : 2016/04/06
• Subjects: HFCs alternatives

Performance of R32 and R290 as alternatives to R22 and R410A in domestic air conditioning

According to the authors, regardless of the capacity difference, R290 could be considered as the most appropriate substitute in air conditioners with small finned tube heat exchangers

• Publication date : 2014/09/25

Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit

This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...

• Publication date : 2004/11/24

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...

• Publication date : 2020/09/04
• Subjects: HFCs alternatives

US to ban high-GWP refrigerants

A rule proposal by the US Environmental Protection Agency (EPA) provides that all high-GWP HFCs, including R134a, R404A and R410A, will be banned in most new refrigeration equipment...

• Publication date : 2023/01/26
• Subjects: Regulation, HFCs alternatives

Safety warnings over air conditioning R32 retrofits

A UK manufacturing association has recently warned against instances of replacing R410A with R32 refrigerant in air conditioners designed for use with R410A.

• Publication date : 2018/04/19

IIR Member news - Solstice N41 (R466A), a new refrigerant from Honeywell

Focus on a brand new refrigerant Solstice N41 (or R466A) which could represent an interesting alternative to R410A in air conditioning.

• Publication date : 2018/08/08

Alternative refrigerants to high-GWP HFCs

Intensification of international regulations on HFCs such as the Kigali Agreement or the European F-Gas Regulation leads refrigerant manufacturers to search for alternatives to high-GWP HFCs. Focus on some alternatives to R410A and R23.

• Publication date : 2019/06/26
• Subjects: HFCs alternatives

Member news: Koura introduces new refrigerant for air conditioning

Refrigerant manufacturer Koura recently introduced R468C, a refrigerant that could replace R410A in air conditioning systems.  

• Publication date : 2022/10/27
• Subjects: HFCs alternatives

Member news: Daikin introduces EWYS-4Z: High-Efficiency Cooling and Heating Solution for Industrial and Commercial Needs

The polyvalent EWYS-4Z cooling and heating unit, which runs on R513A, is designed for superior energy efficiency and reduced noise for industrial and commercial applications. 

• Publication date : 2024/08/01

The Mostra Convegno exhibition

In March 2018 the IIR participated in one of the biggest exhibitions on refrigeration technologies, Mostra Convegno, which took place, as always, in Milan.

• Publication date : 2018/04/19

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...

• Last update : 2023/09/15
• Langues : French, English
• Themes : HFCs

Hydrocarbon refrigerants

Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...

• Last update : 2022/06/22
• Langues : French, English
• Themes : Hydrocarbons, Containment, refrigerant charge reduction

Liquefied Natural Gas: production process and cold energy recovery

Liquefied natural gas (LNG) is natural gas that has been cooled to about -160 °C and turned into a liquid to facilitate transportation and storage. A typical LNG supply chain...

• Last update : 2023/06/23
• Langues : French, English
• Themes : LNG and LPG