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IIR document

Experimental analysis of a R600 high temperature heat pump.

• Author(s) : MOISI H., RIEBERER R.
• Publication date: 2018/06/18
• Languages : English
• Keywords : Test rig, Vapour, Heat recovery, R600, Heat pump, High temperature, Compression
• Source: 13^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
• Formats : PDF

Recommended by the IIR / IIR document

Influence of operating parameters on the COP of an R600 high-temperature heat pump.

• Author(s) : VERDNIK M., RIEBERER R.
• Publication date: 2022/08
• Languages : English
• Keywords : R600, Butane, Heat pump, High temperature, COP, Simulation, Heat recovery
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 140
• Formats : PDF

Analysis of the mixture refrigerant R600/R245fa using in high temperature heat pump.

• Author(s) : YU X., XU C.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Mixture, High temperature, Heat pump, Industrial application, R600, R245fa, Thermodynamic cycle, COP, Expérimentation
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Recommended by the IIR / IIR document

Experimental analysis of a R600 high-temperature heat pump in sub-critical and trans-critical operation.

• Author(s) : VERDNIK M., RIEBERER R.
• Publication date: 2020/12/07
• Languages : English
• Keywords : Heat pump, Industrial application, Prototype, High temperature, Hydrocarbon, R600, COP, Transcritical cycle
• Source: 14^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9^th 2020.
• Formats : PDF

IIR document

Trans-critical vapor compression cycle using butane (R600) as refrigerant for industrial waste heat recovery.

• Author(s) : VERDNIK M., RIEBERER R., MOISI H.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Industrial application, Heat recovery, R600, Simulation, Heat pump, High temperature, Transcritical cycle, COP, Heat exchanger, Compressor
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

High-temperature vapor compression heat pump using butane (R600) – development of a prototype and first measurements.

• Author(s) : VERDNIK M., RIEBERER R.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Compression system, Heat pump, R600, Butane, Prototype, Pressure, High temperature, Transcritical cycle, COP, Expérimentation, Simulation
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Recommended by the IIR / IIR document

Experimental and model-based analysis of an R600 high-temperature heat pump in sub-critical and trans-critical operation.

• Author(s) : VERDNIK M., RIEBERER R.
• Publication date: 2022/06/13
• Languages : English
• Keywords : Expérimentation, R600, Industrial application, Heat pump, Transcritical cycle, Simulation, Modelling, Butane, Prototype, High pressure, High temperature
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

IIR document

Thermodynamic analysis of cascade high-temperature heat pump using new natural zeotropic refrigerant mixtures: R744/R600 and R744/R601.

• Author(s) : GANESAN P., EIKEVIK T. M., HAMID K., WANG R., YAN H.
• Publication date: 2023/10
• Languages : English
• Keywords : Cascade system, High temperature, Heat pump, Industrial application, Natural refrigerant, Zeotropic mixture, Modelling, COP, Butane, Pentane, CO2, R744, R600, R601
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 154
• Formats : PDF

Improved energy efficiency for domestic refrigerator/freezer using hydrocarbon mixtures (R290/R600a, R290/R600 and R600a/R600).

• Author(s) : ELAKHDAR M., NEHDI E., KAIROUANI L.
• Publication date: 2016/03/24
• Languages : English
• Source: 1st International Refrigeration, Energy and Environment Colloquium. Proceedings: Hammamet, Tunisia, March 24-27, 2016.
• Formats : PDF

IIR document

Improving R600a efficiency: RE170/R600 natural mixture experimental analysis.

• Author(s) : CALLEJA-ANTA D., NEBOT-ANDRÉS L., MARTINEZ-ANGELES M., SÁNCHEZ D., LLOPIS R.
• Publication date: 2024/08
• Languages : English
• Source: 16^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
• Formats : PDF

IIR document

Molecular dynamics simulations of nanodroplet evaporation of refrigerants.

• Author(s) : WU X., YANG Z., DUAN Y.
• Publication date: 2021/01
• Languages : English
• Keywords : R600, R134a, R32, R1234yf, Evaporation, Nanoparticle, Droplet, Simulation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 121
• 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

Evaluation of zeotropic mixtures as refrigerants in a dedicated subcooling system of a CO₂ refrigeration plant.

• Author(s) : TOFFOLETTI G., NEBOT-ANDRÉS L., MARTINEZ-ANGELES M., CORTELLA G., LLOPIS R.
• Publication date: 2022/04
• Languages : English
• Keywords : CO2, R744, Zeotropic mixture, Subcooling, Transcritical cycle, R600, R152, Expérimentation
• Source: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
• 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

IIR document

A theoretical and experimental analysis of n-butane application for household refrigerators.

• Author(s) : RONZONI A. F., FURLAN A. A., MONTAGNER G. P., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : R600a, Energy consumption, Butane, Variable speed, Household refrigerator, R600, Modelling, Expérimentation
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

ICR2007: CO2 in the limelight

Among the 876 papers presented at the IIR International Congress of Refrigeration in Beijing, 82 were on CO2 as a refrigerant or secondary fluid. Many dealt with new components for CO2, the lack of such components being currently still one of the...

• Publication date : 2007/11/20

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

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

A study assesses alternative mixtures to two pure hydrocarbon refrigerants

An article reviews more than 11,000 mixtures of refrigerants that could be interesting alternatives to pure R290 and R600a.

• Publication date : 2020/02/05

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

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

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

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

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

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

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

A new non-flammable mixture to boost the performance of CO2 systems

In a recent IJR article, researchers propose combining R744 with Dimethyl-ether (DME) to boost system performance while ensuring safety and low environmental impact, in a recent IJR...

• Publication date : 2024/02/26
• Subjects: Technology

Solar ejector refrigeration systems: benefits and latest developments

Two IJR articles present the latest advancements in this technology and in particular the advantages of variable geometry ejectors and low-GWP refrigerants in terms of performance.

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

Assessment of the environmental impact of domestic refrigerators using LCCP

The environmental impact of domestic refrigerators over their lifetime has been quantified in different configurations (operating cycles, materials, insulation) in a recent IJR article. 

• Publication date : 2021/02/23

Purdue conferences highlights: development of high-temperature heat pumps

High-temperature heat pumps are currently subject to intense R&D work, as illustrated by several papers presented at Purdue last year. All Purdue papers can now be downloaded from the Fridoc database.

• Publication date : 2019/02/28

ICR2007

Several types of IIR medals and awards will be given out at the 22nd IIR International Congress of Refrigeration to be held in Beijing, China, on August 21-26, 2007. If you are aware of an outstanding person who could be honoured, check out

• Publication date : 2005/06/14

Upcoming conference: ICR2007

A call for papers has been launched: abstracts are to be submitted by August 31, 2006. The Science and Technology Committee will screen them, and authors will be informed of acceptance by November 30, 2006. The deadline for submission of full...

• Publication date : 2005/10/26

Briefs: ICR2007 awards

The IIR is delighted to announce the winners of awards to be presented during the awards banquet to be held during the Beijing congress: IIR Medal of Merit: Fritz Steimle; IIR Gustav Lorentzen Medal: Alexey Arkharov; IIR Science & Technology...

• Publication date : 2007/05/04

ICR2007 in Beijing

The International Institute of Refrigeration (IIR) holds Congresses every 4 years. They have two objectives: - a scientific objective: apart from the numerous IIR and IIR-co-sponsored conferences (about 50 over a 4-year period), which are focused...

• Publication date : 2007/11/20

Calls for papers: ICR2007

A Call for Papers for the 22nd IIR International Congress of Refrigeration — Refrigeration Creates the Future — was launched on June 30, 2006: abstracts are to be submitted by August 31, 2006. Authors will be informed of acceptance by November 30,...

• Publication date : 2005/07/19

Upcoming IIR events: ICR2007

22nd IIR International Congress of Refrigeration (ICR2007): Refrigeration Creates the Future will take place on August 21-August 26, 2007 in Beijing, China. The deadline for abstract submission is August 31, 2006. Submit your abstract now:

• Publication date : 2006/07/26

Upcoming IIR events: ICR2007

22nd IIR International Congress of Refrigeration (ICR2007): Refrigeration Creates the Future will take place on August 21- 26, 2007 in Beijing, China. Keep updated and register:www.icr2007.org

• Publication date : 2006/11/15

Upcoming IIR events: ICR2007

22nd IIR International Congress of Refrigeration (ICR2007): Refrigeration Creates the Future will take place on August 21-26, 2007 in Beijing, China. Keep updated and register:www.icr2007.org

• Publication date : 2007/02/12

IIR member news: Embraco

Embraco, IIR Corporate Member, announced the launch of a new oil-less linear compressor design for domestic refrigeration.

• Publication date : 2014/04/27

Best wishes for 2017 from the IIR

Let's meet the challenges of 2017 together. Happy New Year!

• Publication date : 2017/01/04

Focus by Didier Coulomb

As we announced in the latest issue of the Newsletter, this special issue on the environment was prepared jointly with the United Nations Environment Programme (UNEP). 2007 is a very important year for the future of the global environment and the...

• Publication date : 2007/08/05

EPTA S.P.A. continues to grow in Germany with the acquisition of heifo refrigeration activities

The European expansion of one of the leading companies in commercial refrigeration continues with an increasingly capillary service for its customers in the north of Germany.

• Publication date : 2023/10/02
• Subjects: Technology

New IIR Informatory Note: The Role of Refrigeration in Worldwide Nutrition

In line with its corporate objective to promote knowledge of refrigeration and associated technologies and applications on a global scale, the IIR has published a new Informatory Note on “The Role of Refrigeration in Worldwide...

• Publication date : 2020/04/23
• Subjects: Regulation, Environment, Figures, economy, Developing country, General information, Technology

Highlights from the 52nd International HVACR Congress and Exhibition

The opening ceremony of the 52nd International HVACR Congress and Exhibition was led by the President of the Association for HVAC and by the Vice President of the Serbian Union of Mechanical and...

• Publication date : 2022/05/05
• Subjects: General information

The IIR publishes a new Informatory Note on The Role of Refrigeration in Worldwide Nutrition

In line with its corporate objective to promote knowledge of refrigeration and associated technologies and applications on a global scale, the International Institute of Refrigeration (IIR) has published a new Informatory Note on “The...

• Publication date : 2020/04/24
• Subjects: Figures, economy, Developing country, Technology

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

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

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