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IIR document

Measurement of vapor viscosity of R1234yf and its binary mixtures with R32, R125.

• Author(s) : DANG Y., KIM H. S., DANG C., et al.
• Publication date: 2015/10
• Languages : English
• Keywords : Viscosity, R1234yf, Vapour, R32, R125, Binary mixture
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 58
• Formats : PDF

IIR document

Flammability inhibition effects of R227ea, R125, R134a, and R744 on 3,3,3-trifluoropropene (R1243zf)

• Author(s) : WU X., ZHANG X., TANG F., XU S., DANG C., SUN D.
• Publication date: 2022/02
• Languages : English
• Keywords : Flammability, R227ea, R125, R134a, R744, R1243zf, Expérimentation, Calculation, Inhibition
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 134
• Formats : PDF

IIR document

Vapor-liquid equilibrium measurements and models for the ternary mixtures of R1234yf + R32 + R125 and R1234yf + R32 + CO2.

• Author(s) : PENG S., WANG E., LI S., YANG Z., DUAN Y.
• Publication date: 2023/02
• Languages : English
• Keywords : Ternary mixture, R1234yf, R32, R125, R744, Equilibrium, Vapour, Liquid, Expérimentation, Modelling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 146
• Formats : PDF

IIR document

Vapor-liquid equilibrium measurements for the binary mixtures of pentafluoroethane (R125) with 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and 3,3,3-Trifluoropropene (R1243zf).

• Author(s) : PENG S., LI S., YANG Z., DUAN Y.
• Publication date: 2022/02
• Languages : English
• Keywords : Thermodynamic property, Equilibrium, R1234yf, R1243zf, R125, Expérimentation, Calculation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 134
• Formats : PDF

IIR document

Heat transfer regimes of R-125 at supercritical pressures tested in horizontal flow and under organic Rankine cycle conditions.

• Author(s) : LAZOVA M., LECOMPTE S., PAEPE M.
• Publication date: 2019/08/24
• Languages : English
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Diesel combustion of oil and refrigerant mixture during pump-down of air conditioners.

• Author(s) : HIGASHI T., SAITOH S., DANG C., et al.
• Publication date: 2017/03
• Languages : English
• Keywords : R410A, R134a, R1234yf, Safety, R32, R22, R125, Pumping, Diesel, Compressor, Combustion
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 75
• Formats : PDF

Evaluation of performance of heat pump using R32 and HFO-mixed refrigerant by refrigeration cycle simulation and loss analysis.

• Author(s) : TAIRA S., HAIKAWA T., MINAMIDA T.
• Publication date: 2016/07/11
• Languages : English
• Keywords : R410A, R1234yf, R32, R125, R1234ze, Simulation, Heat pump, Performance, HFO, GWP, Refrigerant
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Performance evaluation of heat pump system using R32 and HFO-mixed refrigerant in high ambient temperature.

• Author(s) : TAIRA S., MINAMIDA T., HAIKAWA T., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : R410A, R1234yf, R32, R125, Heat pump, Performance, Zeotropic mixture, High temperature, Expérimentation, Refrigerant
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Scanning Ternary Mixtures for the Low Stage of Cascades in Ultra-Low Temperature Refrigeration.

• Author(s) : MOTA BABILONI A., FERNANDEZ MORENO A., GIMÉNEZ-PRADES P., NAVARRO-ESBRÍ J.
• Publication date: 2022/04/11
• Languages : English
• Keywords : Low temperature, Ternary mixture, COP, GWP, R744, R32, R125, R134a, R1132a, R41, R23, R1150, Flammability
• Source: 7^th IIR International Conference on Sustainability and the Cold Chain Online. Proceedings: April 11-13 2022
• Formats : PDF

Optimization of refrigerant compositions for low-GWP refrigerant mixtures using segment-by-segment heat exchanger and detailed system models.

• Author(s) : LI Z., SHEN B., GLUESENKAMP K.
• Publication date: 2021/05
• Languages : English
• Keywords : Optimization, Modelling, HFO, R1234yf, R1234ze(E), R32, R410A, R125, Chemical composition, Heat exchanger, Zeotropic mixture
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Thermal radiation heat transfer: including wavelength dependence into modelling.

• Author(s) : ZEVENHOVEN R., FÄLT M., GOMES L. P.
• Publication date: 2014/12
• Languages : English
• Keywords : Building, Heat transfer, Passive cooling, Solar radiation, R125, Simulation, HFC, Energy efficiency, Air conditioning, CO2
• Source: International Journal of thermal Sciences - vol. 86

IIR document

Comparison of performance of a vapor absorption refrigeration system operating with some hydrofluorocarbons and hydrofluoroolefins as refrigerants along with ionic liquid [hmim][TF2N] as the absorbent.

• Author(s) : SUJATHA I., VENKATARATHNAM G.
• Publication date: 2018/04
• Languages : English
• Keywords : R1234yf, Ionic liquid, Comparison, Absorption system, R32, R152a, R125, R1234ze(E), Performance, HFO, HFC, Air conditioning
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 88
• Formats : PDF

Recommended by the IIR / IIR document

Thermodynamic and process modeling of the recovery of R410A compounds with ionic liquids.

• Author(s) : ASENSIO-DELGADO S., JOVELL D., URTIAGA A., LLOVEL F.
• Publication date: 2020/10
• Languages : English
• Keywords : HFC, Energy saving, Recovery, Refrigerant, Regulations, R410A, Ionic liquid, Simulation, Solubility, Separation, Mixture, R32, R125, Thermodynamic property
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
• Formats : PDF

IIR document

Scaling theories for predicting the viscosity of binary and ternary refrigerant mixtures.

• Author(s) : GONZÁLEZ-BARRAMUÑO B., CEA-KLAPP E., CERDA S., POLISHUK I., PIÑEIRO M. M.
• Publication date: 2023/11
• Languages : English
• Keywords : Viscosity, Calculation, Binary mixture, Ternary mixture, Equation of state, Modelling, Thermodynamic property, R134a, R125, R1234ze(E), R1234yf, HFC, HFO
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 155
• Formats : PDF

Recommended by the IIR / IIR document

Prediction on the viscosity and thermal conductivity of HFC/HFO refrigerants with artificial neural network models.

• Author(s) : WANG X., LI Y., WRIGHT E., GAO N., CHEN G.
• Publication date: 2020/11
• Languages : English
• Keywords : HFC, HFO, Thermodynamic property, Thermal conductivity, Viscosity, Artificial neural network, Modelling, Programming, R125, R134a, R143a, R152a, R161, R227ea, R236fa, R245fa, R32, R1234yf, R1234ze(E), R1336mzz(Z)
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 119
• Formats : PDF

European Commission investigates over R1234yf patents

On December 16, 2011, the European Commission (EC) has "opened antitrust proceedings concerning agreements between Honeywell and DuPont" for the development of R1234yf for air-conditioning systems in cars. "

• Publication date : 2012/02/27

Daimler decides not to switch to R1234yf

After having examined real-life scenarios conducted using R1234yf, Daimler, the manufacturer of Mercedes-Benz cars, has announced its intention to stick to R134a instead of implementing R1234yf in its automobile air-conditioning systems.

• Publication date : 2012/11/20

R1234yf tested for bus air conditioning

Tests co-funded by the Spanish Ministry of Science and Innovation and run bus AC system company Hispacold suggest that HFO-1234yf is a near drop-in replacement refrigerant for HFC-134a in the tested Hispacold’s 12S roof top bus air-conditioning...

• Publication date : 2011/12/30

Launch of the first R1234ze free-cooling chillers

The “first to market” TurboChill free cooling chillers using low global warming potential (GWP) refrigerant R1234ze are going to be launched.

• Publication date : 2013/12/18

EPA permits R1234yf to be sold to US consumers

As a result of a lawsuit brought by the AAIA and the ARPI, the U.S. Environmental Protection Agency (EPA) issued a final rule that will permit R1234yf to be sold to US consumers.

• Publication date : 2013/12/29
• Subjects: Regulation

R1234yf as a working fluid in Organic Rankine Cycle systems

A recent review article presented the use of HFO R1234yf and its mixtures in Organic Rankine Cycle (ORC) systems, namely in applications for waste heat recovery from internal...

• Publication date : 2021/09/07
• Subjects: Technology

DuPont’s new HFO 1336mzz could replace R123

DuPont has announced it is to start small scale production of a new low GWP HFO which could replace R123.

• Publication date : 2014/05/22
• Subjects: HFCs alternatives

Foam blowing agents: use of R1233zd(E) is expanding

Honeywell announced that TCL, one of China’s largest appliance manufacturers, selected HFO1233zd(E) as foam blowing agent in its domestic refrigerators.

• Publication date : 2017/12/18

European Commission questions Honeywell/DuPont R1234yf collaboration

On October 21, 2014, the European Commission has sent a Statement of Objections to Honeywell and DuPont regarding cooperation on new refrigerant used in car air-conditioning systems.

• Publication date : 2014/11/24

Daimler agrees to use R1234yf to comply with EU regulations

Daimler agrees to use R1234yf but will phase in CO2 from next year.

• Publication date : 2015/12/06

Arkema announced the construction of a R1234yf production plant in China

Arkema, French leading supplier of refrigerants, recently announced the construction of a R1234yf production plant in Changsu (near Shanghai), China.

• Publication date : 2013/12/05

Controversy over R1234yf: EC confirms enforcement of MAC Directive by January 1, 2013

Despite the safety concerns expressed by Daimler and calls for an additional moratorium in the refrigerant transition schedule, the EC restated on December 20, 2012, that “the MAC Directive will be fully enforced as of January 1, 2013”

• Publication date : 2013/02/28

MAC: SAE considers R1234yf as “safe and effective” and AC5 and AC6 blends as “technically credible”

The SAE International Cooperative Research Project team has concluded that “R1234yf refrigerant is safe and effective to use in automotive applications. It also concluded that “based on a detailed fault tree analysis, AC6 offers a risk profile...

• Publication date : 2013/08/27

R1234yf could be used in 3 million cars by the end of the year

DuPont expects refrigerant HFO1234yf will be used in the air-conditioning systems of nearly 3-million vehicles worldwide by the end of this year.

• Publication date : 2014/07/10

Performance comparison of R1234yf and R134a

A study published in Applied Thermal Engineering compares the performance of HFC-134a and HFO-1234yf as drop-in alternative in automotive air conditioning systems.

• Publication date : 2017/05/24

IIR member news: Johnson Controls YORK chiller optimised for R1233zd(E)

The YORK YZ magnetic bearing centrifugal chiller, produced by Johnson Controls, is said to be the first chiller fully optimized for ultimate performance with the low-global warming potential refrigerant R1233zd(E).

• Publication date : 2019/01/31

Member news: Koura offers an alternative refrigerant to R1234yf for mobile air conditioning 

 Koura offers a direct replacement solution for R1234yf in mobile air conditioning.  

• Publication date : 2023/12/20

IIR member news: Star Refrigeration

After a year’s research project into low GWP cooling, Star Refrigeration proposes a new chiller using R1234ze.

• Publication date : 2014/02/03

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

IIR member news: STEF to acquire Ebrex France

STEF takeover warms up.

• Publication date : 2013/09/04

News from IIR members: Freezcube

FreezCube, developed by Playcube, corporate member of the IIR based in France, has been awarded the Gold Medal at Concours Lépine 2010. FreezCube is a simple monitoring device which provides useful information related to the safety of frozen foods...

• Publication date : 2011/02/07

News from IIR members: Cooltech

Cooltech based in Holtzheim, France, received a 2010 trophy for innovation from the INPI (National Institute for Industrial Property), for their groundbreaking work on magnetic-cooling systems. INPI, October 19, 2010

• Publication date : 2011/02/07

News from IIR members: Carrier CO2NSERVATION meter

The Carrier CO2NSERVATION meter calculates avoided greenhouse gas (GHG) emissions as a result of the installation of high efficiency Carrier air-conditioning, heating and refrigeration systems by customers around the world since 2000. Buildings in...

• Publication date : 2011/02/07

News from IIR members: Nestlé

Nestlé's confectionery production facility in Halifax, UK, has implemented an award-winning innovative ammonia heat pump plant to power its operations, cutting costs at the site by over 240 000 € per year. The system, formed by a collaborative...

• Publication date : 2011/02/07

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

Additive manufacturing of regenerators for caloric cooling

In many areas of engineering, additive manufacturing allows the production of complex and multifunctional products that could not be manufactured using traditional methods. In the...

• Last update : 2022/09/16
• Langues : French, English
• Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)

Cryogenic nitrogen in the food and beverage industry

The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...

• Last update : 2023/11/07
• Langues : French, English
• Themes : Freezing of foodstuffs