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IIR document

?hermodynamic properties of isobutane/mineral compressor oil and isobutane/mineral compressor oil/fullerenes C60 solutions.

• Author(s) : ZHELEZNY V., KHLIYEVA O., LUKIANOV M., et al.
• Publication date: 2019/10
• Languages : English
• Keywords : Thermodynamics, R600a, Isobutane, Heat capacity, Fullerene, Oil, Expérimentation, Entropy, Enthalpy
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 106
• Formats : PDF

IIR document

Experimental investigation of the refrigerant flow of isobutane (R600a) through adiabatic capillary tubes.

• Author(s) : SCHENK M., OELLRICH L. R.
• Publication date: 2014/02
• Languages : English
• Keywords : R600a, Isobutane, Capillary tube, Design, Expérimentation, Flow, Refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 38
• Formats : PDF

Application of natural refrigerant propane and propane/isobutane in large capacity chest freezer.

• Author(s) : HE M. G., SONG X. Z., LIU H., et al.
• Publication date: 2014/09
• Languages : English
• Keywords : R600a, Isobutane, R290, Propane, Mixture, Testing, COP, Refrigerant, Freezer, Chest
• Source: Applied Thermal Engineering - vol. 70 - n. 1

A study on the performance of heat pump by mixing ratio of isobutane/propane mixed refrigerants.

• Author(s) : KANG G. H., NA S.-I., KIM M. S.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Natural refrigerant, Isobutane, Propane, Mixture, COP, Low GWP, Simulation, Performance, Heat pump, R600a, R290
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

IIR document

Investigation on solid-liquid equilibrium for binary mixtures of carbon dioxide (R744) and alkanes: Propane (R290) and isobutane (R600a).

• Author(s) : SOBIERAJ M., KSIONEK D., PAVKOVIC B.
• Publication date: 2023/10
• Languages : English
• Keywords : R744, R290, R600a, Binary mixture, Propane, Isobutane, Expérimentation, Low GWP, CO2
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 154
• Formats : PDF

Development of numerical modelling of isobutane vapor ejector.

• Author(s) : SMIERCIEW K., BUTRYMOWICZ D., GAGAN J., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Isobutane, Ejector system, CFD, Vapour, Simulation, Pressure
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Thermoeconomic optimization of an ejector refrigeration system working with isobutane.

• Author(s) : CHEN J., HAVTUN H., PALM B.
• Publication date: 2014/08/02
• Languages : English
• Keywords : Refrigerating system, R600a, Isobutane, Profitability, Performance, Optimization, Ejector
• Source: 11^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
• Formats : PDF

IIR document

Adiabatic capillary tube flows of n-butane and isobutane.

• Author(s) : MOOSBRUGGER M., MARCHI D., BRÜGGEMANN P. A., KRIMMEL A., HERMES C. J. L.
• Publication date: 2024/02
• Languages : English
• Keywords : Test rig, Expérimentation, Hydrocarbon, R600, R600a, Isobutane, Butane, Thermodynamic property
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 158
• Formats : PDF

IIR document

Investigations of two-phase injector operating with isobutane.

• Author(s) : SMIERCIEW K., BUTRYMOWICZ D., PRZYBYLINSKI T.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Two-phase flow, Refrigerating system, Isobutane, Heat transfer coefficient, Injection, Expérimentation
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Experimental investigations of low-temperature driven ejection refrigeration cycle operating with isobutane.

• Author(s) : BUTRYMOWICZ D., SMIERCIEW K., KARWACKI J., et al.
• Publication date: 2014/03
• Languages : English
• Keywords : Refrigerating system, Isobutane, Heat, Low temperature, Performance, Expérimentation, Ejector
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 39
• Formats : PDF

Analysis of application of two-phase injector in ejector refrigeration systems for isobutane.

• Author(s) : SMIERCIEW K., BUTRYMOWICZ D., KWIDZINSKI R., et al.
• Publication date: 2015/03
• Languages : English
• Keywords : Two-phase flow, Refrigerating system, R600a, Isobutane, Model, Ejector
• Source: Applied Thermal Engineering - vol. 78

IIR document

Experimental investigations of two-phase ejector operating with isobutane.

• Author(s) : SMIERCIEW K., GAGAN J., BUTRYMOWICZ D., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Velocity (fluids, gases), Two-phase flow, R600a, Isobutane, Correlation, Nozzle, Modelling, Testing, Ejector
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Experimental assessment of n-butane and isobutane flows in adiabatic capillary tubes.

• Author(s) : MOOSBRUGGER M., MARCHI D., BRÜGGEMANN P. A., KRIMMEL A., HERMES C. J. L.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Expérimentation, R600, R600a, Butane, Isobutane, Test rig, Testing, Model, Capillary tube
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Experimental investigation on heat transfer of spray cooling with isobutane (R600a).

• Author(s) : XU H., SI C. Q., SHAO S., et al.
• Publication date: 2014/12
• Languages : English
• Keywords : Spray cooling, R600a, Isobutane, Heat transfer coefficient, Heat transfer, Performance, Expérimentation
• Source: International Journal of thermal Sciences - vol. 86

IIR document

Experimental development of alternative mixtures to isobutane. Energy optimization.

• Author(s) : CALLEJA-ANTA D., NAPOLI G., NEBOT-ANDRÉS L., SÁNCHEZ D., CABELLO R., VISCITO L., MAURO A. W., LLOPIS R.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Expérimentation, Test rig, Mixture, Binary mixture, COP, R600, R290, R152a, Isobutane, Optimization, Thermodynamic property
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

HFC consumption in Bangladesh

According to a UNEP document published in June 2017, the HFC consumption in Bangladesh was of 810.68 metric tonnes, including 94.5% of R134a.

• Publication date : 2017/10/20
• Subjects: Developing country, HFCs alternatives

A new safety standard for American refrigerators

A new US standard allows household fridges and freezers to use up to 150 grams of hydrocarbon refrigerants instead of the current limit of 57 grams.

• Publication date : 2017/05/12
• Subjects: Regulation, HFCs alternatives

Colombia: financial aid to renew the stock of domestic refrigerators

In Colombia, 17,553 people have benefited since January 2019 from a programme to replace old domestic refrigerators with new units using isobutane (R600a). 

• Publication date : 2023/09/22
• Subjects: HFCs alternatives

Briefs: Hydrocarbon refrigerators soon in the US?

General Electric announced that it had submitted information to the Environmental Protection Agency (EPA) in connection with a request for approval to use isobutane, a hydrocarbon, as a refrigerant in household refrigerators. The petition was...

• Publication date : 2009/05/18

United States

The US EPA has published a long-awaited proposed rule allowing the use of certain hydrocarbons in new household refrigerator and freezer equipment. Hydrocarbon refrigerants have now been used for over 10 years in countries such as Germany, the UK,...

• Publication date : 2011/02/04

Energy savings: Japan: significant improvement of the energy efficiency of refrigerators

According to JARN, the energy efficiency of refrigerators in Japan has been continuously improved: their power consumption has been reduced to 1/5th of that 10 years ago. This is in part due to the development of vacuum heat insulators, which are...

• Publication date : 2005/07/19

IIR Rankine Conference 2020: Which alternative working fluids for ORC systems?

HFOs (hydrofluoroolefins), HCFOs (hydrochlorofluoroolefins) and hydrocarbons were the main alternatives to HFC245fa presented during the IIR Rankine Conference 2020.

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

Review of CFC and HFC-free refrigerators worldwide

At the beginning of December 2004, Brazil's first CFC and HFC-free refrigerator rolled off the BSH Bosh und Siemens Hausegerate GmbH production line. Following implementation for several years in Europe , then in Australia , China , India and...

• Publication date : 2005/02/10

Update on the global regulation on refrigerants

Global regulations on fluorinated gases are evolving, with new ratifications of the Kigali Amendment (including China), the updating of the GWP of certain refrigerants by the IPCC, and five European countries...

• Publication date : 2021/09/07
• Subjects: Regulation, HFCs alternatives

Initiatives to promote refrigeration technologies in the developing world

Focus on some initiatives to facilitate access to eco-friendly refrigeration technologies in hot countries.

• Publication date : 2020/06/26
• Subjects: Developing country

Alternative Cooling Technologies conference, London, 1st February 2005

This conference, which was co-sponsored by the UK Institute of Refrigeration and organised commercially by RAC magazine, was well attended with about 140 people present. It was arranged in five sessions. In the first session, speakers from UK...

• Publication date : 2005/02/11

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

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

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

IIR member news: Embraco's Position Paper on refrigerants used in light commercial refrigeration

Compressor manufacturer Embraco publishes a "Position Paper" to assess the transitory solutions towards low GWP refrigerants.

• Publication date : 2017/04/26
• Subjects: HFCs alternatives

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 : English, French
• Themes : Hydrocarbons, Containment, refrigerant charge reduction

Thermophysical properties of hydrocarbon refrigerants

Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : Hydrocarbons, Blends