Search results

  • Ultra-low temperature systems ready for COVID-19 vaccine storage

    Mirai Intex, corporate member of the IIR, is positioning its ultra-low-temperature (ULT) systems to serve as the refrigeration technology for the storage of COVID-19 vaccines and the freeze-drying of the...

    • Publication date : 2020/11/26
  • A cryogenic distillation column

    A high-pressure cryogenic distillation column which replicates a key component of a liquefied natural gas (LNG) plant has been developed in Australia.

    • Publication date : 2018/08/08
  • MAC: industrialization of the first CO2 compressors

    The automotive component manufacturer Sanden confirmed that it was supplying the German car manufacturer Daimler with CO2 compressors for their mobile air conditioning (MAC) systems.

    • Publication date : 2017/12/19
  • R32, a short-term candidate to replace R22 in China?

    HFC-32 attracted attention during ICR2011 in Prague: it was the subject of 12 papers. It is the main component of HFC-410A with which it shares similar thermodynamic properties, but at a lower price and with a lower GWP (675).

    • Publication date : 2011/12/27
  • The challenges of thermal management of next-generation electronic equipment

    With the increasing integration and miniaturization of electronic devices, the heat flows they generate are constantly increasing. Spray cooling has many advantages in this regard. 

    • Publication date : 2023/03/27
  • Charge minimization in hydrocarbon systems

    This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). It presents the results of the project to minimize charge in a R290 system that has 1-1.5 kW refrigeration capacity. Currently, there are many guidelines...

    • Publication date : 2004/11/24
  • Briefs: MAC: what refrigerant will replace HFC-134a?

    Following the adoption of the new European Directive 2006/40 on emissions from mobile air-conditioning systems - which bans F-gases with a GWP higher than 150 (such as HFC-134a) as of 2011 for new models of cars and similar Californian...

    • Publication date : 2007/02/12
  • Briefs: solar air-conditioning prototype

    As part of the European programme Solera, CEA LITEN researchers recently set up a 4.5-kW solar air-conditioning prototype in the facilities of the INES (French National Institute of Solar Energy) in Chambéry in the French Alps, where the system...

    • Publication date : 2009/12/09
  • 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
  • High efficiency, low carbon supermarket refrigeration

    This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A new but simple high efficiency refrigeration system design suitable for use in supermarkets has been developed based on standard components so that...

    • Publication date : 2004/11/24
  • Magnetic-bearing centrifugal compressors

    This new compressor technology - presented at the 2003 AHR Expo in Chicago - may have a significant effect on the future of mid-range chillers and rooftop applications in water-cooled, evaporatively cooled and air-cooled chilled-water and...

    • Publication date : 2004/07/27
  • Refrigerant news: Refrigerant shortage

    The refrigeration sector is facing a shortage of R134a, employed as a refrigerant or as a component used in the making of R404A. This is due to several factors: a lack of raw materials, the stopping of production of factories in Asia, low...

    • Publication date : 2011/02/07
  • Micro-Innovation

    Mechanical engineers at Purdue University have created a miniature device that aims to replace conventional evaporators. Cited as a "long-term solution" in technological advances, the use of existing technical know-how for the refrigeration loop...

    • Publication date : 2005/07/19
  • Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit

    This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...

    • Publication date : 2004/11/24
  • Ultracold polar molecules

    Scientists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder (CU-Boulder), have applied their expertise in ultracold atoms and lasers to produce the first high-density...

    • Publication date : 2008/10/22
  • New in our Encyclopedia: additive manufacturing for refrigeration equipment

    Additive manufacturing makes it possible to optimise the geometry and performance of cooling components such as heat exchangers and regenerators for caloric...

    • Publication date : 2022/09/28
    • Subjects: Technology
  • Valuable publications: Refrigeration Fundamentals

    Refrigeration Fundamentals: this IIR course deals with refrigeration fundamentals, components of refrigeration plants, the refrigerants and lubricants used, and control systems. It is an attractive and valuable teaching tool that technicians and...

    • Publication date : 2009/05/18
  • Conference update: Stockholm

    The 2nd IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems will be held in Stockholm, Sweden, on June 16-17, 2010. The main themes are: design of low-refrigerant charge systems thermodynamics in compact heat exchangers; design...

    • Publication date : 2010/03/07
  • New publications: The CD-ROM proceedings of the Vicenza IIR Conferences

    The CD-ROM proceedings of the Vicenza IIR Conferences on 1) Commercial Refrigeration and 2) Thermophysical Properties and Transfer Processes of Refrigerants are on sale. They comprise 134 papers. Main topics: 1) display cabinets, energy simulation...

    • Publication date : 2006/01/28
  • New IIR publications: Saving Energy in Refrigeration, Air-Conditioning and Heat-Pump Technology

    The French version of the IIR guide Saving Energy in Refrigeration, Air-Conditioning and Heat-Pump Technology will be published in November 2009; the goal of this guide is to provide practical ways of minimizing the energy consumption of...

    • Publication date : 2009/12/09
  • Conference update: Stockholm

    The 2nd IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems will be held in Stockholm, Sweden, on June 16-17, 2010. Key themes include: design of low-refrigerant charge systems; thermodynamics in compact heat exchangers; design...

    • Publication date : 2010/05/27
  • New publications: Energy Savings

    The IIR has published a new version of its guide Saving Energy in Refrigeration, Air-Conditioning and Heat-Pump Technology; the goal of this completely revised version prepared by Forbes Pearson and several IIR experts and launched during the Bali...

    • Publication date : 2008/02/12
  • Refrigeration Fundamentals on sale!

    The IIR's latest course, Refrigeration Fundamentals - Educational Course, will be available within a few weeks. Refrigeration Fundamentals, by André Pilatte - Delegate of Belgium to the IIR and Professor at the Faculté Polytechnique de Mons -...

    • Publication date : 2006/07/26
  • Conference reports

    Several IIR-co-sponsored events took place at the end of 2010: - The Pôle Cristal Symposium held in Dinan, France, on October 7-8, 2010 attracted 220 attendees. Sixteen papers were presented. - The International Congress...

    • Publication date : 2011/02/07
  • 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
  • IIR events: new IIR working party

    A proposal for a new IIR working party will be discussed during the meeting of the Science and Technology Council in August 2007 in Beijing. This working party is to deal with reduction in the refrigerant charge of refrigeration plants through...

    • Publication date : 2007/08/05
  • Editorial by Didier Coulomb

    The IIR's mission is to disseminate the outcomes of research on refrigeration technologies and applications. Through its Framework Programmes for Research and Technological Development (FPRD) the European Union regularly funds major research...

    • Publication date : 2011/02/04
  • IIR Research Priorities

    The IIR decided, within the framework of its Strategic Plan, to draw up a list of research priorities for the future. It hopes that these priorities will be a valuable guiding force for decision-makers in the public and private research sectors,...

    • Publication date : 2005/07/19
  • News from IIR members: Danfoss

    Danfoss was chosen by Sainsbury’s and Netto to facilitate the conversion of their stores to CO2 as part of their ambition to drastically reduce greenhouse gas (GHG) emissions. Danfoss has 10 years’ experience in the...

    • Publication date : 2011/08/04
  • Call for abstracts now open! 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants

    Prospective authors of papers are encouraged to submit 150-200 word abstracts by September 15, 2021.

    • Publication date : 2021/07/08
    • Subjects: Environment, Technology
  • 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
  • Thermophysical properties of HFC refrigerants

    Thermophysical properties of over 100 HFC refrigerants, including single-component and blends.

    • Last update : 2022/06/17
    • Langues : English
    • Themes : HFCs, Blends, HFO et HCFO
  • Thermophysical properties of HFO refrigerants

    Thermophysical properties of over 50 HFO refrigerants, including single-component and blends.

    • Last update : 2022/06/17
    • Langues : English
    • Themes : Blends, HFO et HCFO
  • 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
  • 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)
  • Liquefied Natural Gas: production process and cold energy recovery

    Liquefied natural gas (LNG) is natural gas that has been cooled to about -160 °C and turned into a liquid to facilitate transportation and storage. A typical LNG supply chain...

    • Last update : 2023/06/23
    • Langues : French, English
    • Themes : LNG and LPG
  • Additive manufacturing of heat exchangers

    In the refrigeration industry, additive manufacturing (colloquially referred to as “3D printing”) makes it possible to fabricate novel, complex and potentially more energy efficient...

    • Last update : 2022/09/07
    • Langues : French, English
    • Themes : Evaporators, condensers and other heat exchangers
  • For IIR members only

    Heat pump stock in Europe

    This table presents the stock of installed heat pumps, the CO2 emissions avoided and the number of jobs in the heat pump sector in Europe.

    • Last update : 2021/12/14
    • Langues : English
    • Themes : Heat pumps, energy recovery: economics and statistics
  • Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement

    Research activities in the pharmaceutical sector focus primarily on developing novel drug formulations which can elicit the desired response upon being administered to the patient...

    • Last update : 2023/03/10
    • Langues : French, English
    • Themes : Freeze-drying in biology and medicine, Cryobiology, cryomedicine: general information