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IIR document

Molecular simulation for liquid vapour equilibria of ethylene,R1132a, R1132(E) and R1123.

• Author(s) : KONDOU C., OKUMURA T., MIURA T., LIU Y.
• Publication date: 2021/06
• Languages : English
• Keywords : Simulation, Ethylene, R1132a, R1132(E), , Equilibrium, Surface tension, Saturation, Pressure, Thermodynamic property, Liquid-vapour
• Source: 2^nd IIR Conference on HFO Refrigerants and Low GWP Blends
• Formats : PDF

IIR document

Vapor-liquid equilibrium of binary refrigerant blends of R1132(E) + R1234yf and R1132(E) + R32.

• Author(s) : ISHIMARU H., KITABATAKE K., SAKODA N., HIGASHI Y.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Equilibrium, HFO, R1132(E), Equation of state, Binary mixture, Expérimentation, R1234yf, R32, Thermodynamic property, Calculation
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Measurements of PvT properties, saturated densities, and critical parameters of R1132(E).

• Author(s) : SAKODA N., PERERA U., THU K., HIGASHI H.
• Publication date: 2022/08
• Languages : English
• Keywords : R1132(E), Pressure, Volume, Temperature, Measurement, Critical state, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 140
• Formats : PDF

IIR document

Measurements of saturation pressures for the novel refrigerant R1132(E).

• Author(s) : PERERA U., SAKODA N., MIYAZAKI T., THU K., HIGASHI Y.
• Publication date: 2022/03
• Languages : English
• Keywords : Air conditioning, Thermodynamic property, HFO, Low GWP, Saturation, Vapour pressure, Critical pressure, R1132(E), Expérimentation, Substitute
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 135
• Formats : PDF

IIR document

PVT Properties, Saturated Densities, and Critical Parameters of trans-1,2-Difluoroethene (R1132(E)) + 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf).

• Author(s) : SAKODA N., HIGASHI Y.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Mixture, Critical density, R1132(E), R1234yf, Expérimentation, Equation of state, Thermodynamic property, Critical pressure, Critical temperature, Critical point, HFO, Low GWP
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Study of decomposition of R-1132(E) as ultra-low GWP refrigerants.

• Author(s) : GOTO T., USUI T., YOSHIMURA T., YAMADA Y.
• Publication date: 2024/07
• Languages : English
• Keywords : R1132(E), Low GWP, Expérimentation, R1234yf, R474A, Ternary mixture, R32, Air conditioner, Testing, Thermodynamic property
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 163
• Formats : PDF

IIR document

Thermodynamic properties of trifluoroethene (R1123): (p, ρ, T) behavior and fundamental equation of state.

• Author(s) : AKASAKA R., HIGASHI Y., SAKODA N., FUKUDA S., LEMMON E. W.
• Publication date: 2020/11
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 119
• Formats : PDF

Measurements of thermodynamic properties for R1123 and R1123+R32 mixture.

• Author(s) : HIGASHI Y., AKASAKA R.
• Publication date: 2016/07/11
• Languages : English
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

A new ISO 17584 standard equation of state for 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and its modification for trans-1,2-Difluoroethene [R1132(E)].

• Author(s) : AKASAKA R., LEMMON E. W.
• Publication date: 2021/06
• Languages : English
• Source: 2^nd IIR Conference on HFO Refrigerants and Low GWP Blends
• Formats : PDF

Recommended by the IIR / IIR document

Measurement of the vapor–liquid equilibrium properties of the binary low GWP refrigerant R32/R1123.

• Author(s) : MIYAMOTO H., SAITO T., SAKODA N., PERERA U., ISHII T., THU K., HIGASHI Y.
• Publication date: 2020/11
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 119
• Formats : PDF

IIR document

Saturation pressure measurements of the new refrigerant HFO1132(E).

• Author(s) : PERERA U., THU K., MIYAZAKI T., SAKODA N., HIGASHI Y.
• Publication date: 2021/06
• Languages : English
• Keywords : R1132(E), Saturation, Pressure, Critical pressure, Thermodynamic property, Expérimentation, HFO
• Source: 2^nd IIR Conference on HFO Refrigerants and Low GWP Blends
• Formats : PDF

Recommended by the IIR / IIR document

Thermal stability of novel HFO blend refrigerant.

• Author(s) : GOBO K., TSUCHIYA T., YAMADA Y., NAKAUE T., KARUBE D., KOMATSU Y., ITO R., OHKUBO S., RYDKIN I.
• Publication date: 2021/06
• Languages : English
• Keywords : HFO, Mixture, Thermodynamic property, Expérimentation, R1132(E), R1234yf, Testing, Stability
• Source: 2^nd IIR Conference on HFO Refrigerants and Low GWP Blends
• Formats : PDF

IIR document

Condensation heat transfer and pressure drop of R32/R1123 inside horizontal multiport extruded tubes.

• Author(s) : JIGE D., MIKAJIRI N., KIKUCHI S., INOUE N.
• Publication date: 2020/12
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 120
• Formats : PDF

IIR document

Surface tension and parachor for a new low-GWP refrigerant R1123/R32/R1234yf and its constituent binary pairs.

• Author(s) : LIU Y., KONDOU C., COQUELET C., HOURIEZ C.
• Publication date: 2021/12
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 132
• Formats : PDF

IIR document

Experiments on condensation heat transfer of ternary mixture R1123/R32/R1234yf in a multiport tube.

• Author(s) : JIGE D., MIKAJIRI N., NOBUNAGA M., INOUE N.
• Publication date: 2021/06
• Languages : English
• Source: 2^nd IIR Conference on HFO Refrigerants and Low GWP Blends
• Formats : PDF

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

A surprising increase in the emissions of trichlorofluoromethane (R11) since 2012

An article published in Nature underlines the unexpected and persistent increase in global emissions of ozone-depleting R11.

• Publication date : 2018/06/22
• Subjects: Regulation

State of the art on the flammability of HFOs

An article recently published in the IJR reviews the flammability characteristics of 48 HFOs and blends for various experimental conditions.

• Publication date : 2020/02/05

Low GWP blends for domestic air conditioning

A review article presents the latest research trends on low GWP refrigerants, mainly HFC/HFO blends, for domestic air conditioning. 

• Publication date : 2023/03/28
• Subjects: HFCs alternatives

Refrigerant contamination

In its "White Paper: Reports of R134a Contaminated with R40 and Other Refrigerants”, AHRI suggests that in addition to R40 and R22, R142b, R152a, and R12 have also been found mixed with R134a in newly filled refrigerant cylinders marked as...

• Publication date : 2013/06/18

Development of a prototype of Secondary loop Mobile Air Conditioning System

Tata Motor, an Indian car manufacturer, recently signed a partnership with the German automotive supplier Mahle to design and develop a Secondary Loop Mobile Air Conditioning System (SL-MAC).

• Publication date : 2017/09/13

An innovation in thermoregulating clothing

Thermoregulating garments powered by solar energy and bidirectional electrocaloric devices are under development. They are said to be effective for outdoor temperatures of 12.5 to...

• Publication date : 2024/01/26
• Subjects: Technology

Approval of the revision of the F-Gas regulation by the European Parliament

On January 16, 2024, the European Parliament voted on the final version of the revision of the F-Gas regulation. 

• Publication date : 2024/01/26
• Subjects: Regulation

New radiative cooling technology promises breakthrough for vertical surfaces

A new radiative cooling material designed for vertical surfaces demonstrates cooling 2.5°C below ambient, offering solutions for urban heat. 

• Publication date : 2024/12/13

Temperature control and sustainability, the challenges of 3D meat printing

Temperature control is a key factor that still limits the application of 3D printing in the meat industry, according to recent scientific publications. 

• Publication date : 2023/01/26
• Subjects: Technology

IPCC confirms HFO GWPs are less than 1

The Intergovernmental Panel on Climate Change (IPCC) has confirmed that both R1234yf and R1234ze(E) have global warming potentials below that of carbon dioxide.

• Publication date : 2014/02/24

Some HFOs have lower GWPs than CO2

US EPA has evaluated new HFO refrigerants as having similar or lower global warming potential than CO2.

• Publication date : 2015/02/01
• Subjects: HFCs alternatives

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

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

Illegal production and use of CFC-11 in China

A report published by the EIA reveals that some Chinese companies still use CFC-11 in the foam blowing industry.

• Publication date : 2018/08/23
• Subjects: Regulation

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: 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

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

Minutes of IIR Commission B1 Business Meeting in Boulder

A Commission B1 business meeting took place in Boulder, Colorado, USA (June 24, 2009). It was chaired by Commission B1 President Dr Piotr Domanski. The minutes of the meeting are available

• Publication date : 2010/06/07

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

Nanorefrigerants

Nanorefrigerants are created by adding nanoparticles in suspension to a base refrigerant. They have a thermal conductivity that is 15% to 104% higher than that of the corresponding...

• Last update : 2022/06/17
• Langues : English, French
• Themes : Nanofluids

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