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Exploración de la mezcla RE170/R600: mejora de la eficiencia como alternativa al R600a.
Exploring the use of RE170/R600 blend as an alternative to R600a for improved efficiency.
IIR document
Experimental analysis of a R600 high temperature heat pump.
Experimental validation of RE170 / R600 (Dimethyl Ether / Butane) mixture as a superior refrigerant compared to R600a (Isobutane).
Recommended by the IIR / IIR document
Influence of operating parameters on the COP of an R600 high-temperature heat pump.
Analysis of the mixture refrigerant R600/R245fa using in high temperature heat pump.
Experimental analysis of a R600 high-temperature heat pump in sub-critical and trans-critical operation.
Experimental investigation on a Joule-Thomson refrigeration system with hydrocarbon mixtures R1150/R600 for -68°C light commercial lowtemperature freezer.
Trans-critical vapor compression cycle using butane (R600) as refrigerant for industrial waste heat recovery.
High-temperature vapor compression heat pump using butane (R600) – development of a prototype and first measurements.
Experimental and model-based analysis of an R600 high-temperature heat pump in sub-critical and trans-critical operation.
Thermodynamic analysis of cascade high-temperature heat pump using new natural zeotropic refrigerant mixtures: R744/R600 and R744/R601.
Improved energy efficiency for domestic refrigerator/freezer using hydrocarbon mixtures (R290/R600a, R290/R600 and R600a/R600).
Improving R600a efficiency: RE170/R600 natural mixture experimental analysis.
Molecular dynamics simulations of nanodroplet evaporation of refrigerants.
Adiabatic capillary tube flows of n-butane and isobutane.
Refrigeration sector monitoring
51 results
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...
Over 600 LNG-fuelled ships currently in operation
According to the maritime classification and consultancy company DNV, 2024 saw a record increase in orders of alternative-fuelled ships, mostly powered by LNG and...
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...
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).
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.
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)
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...
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.
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.
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...
Initiatives to promote refrigeration technologies in the developing world
Focus on some initiatives to facilitate access to eco-friendly refrigeration technologies in hot countries.
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...
GL2024: Improving the performance of R744-refrigeration systems at high ambient temperatures
A paper presented during the 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants proposes improving the performance of R744 refrigeration systems in transcritical operation using low-charge R290...
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...
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.
IIR news
19 results
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
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...
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...
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...
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:
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
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
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,...
IIR member news: Embraco
Embraco, IIR Corporate Member, announced the launch of a new oil-less linear compressor design for domestic refrigeration.
Member news: GEA implements an innovative high-temperature heat pump at a Tiense Suiker production site
GEA has developed a high-temperature industrial heat pump utilising heat recovery, with reduced emissions.
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...
Best wishes for 2017 from the IIR
Let's meet the challenges of 2017 together. Happy New Year!
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.
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...
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...
Encyclopedia of Refrigeration
3 results
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...
Thermophysical properties of hydrocarbon refrigerants
Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and 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...
