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Efficacy of chlorine dioxide gas and freezing rate on the microbiological quality of frozen blueberries.
IIR document
Prediction of critical properties and boiling point of fluorine/chlorine-containing refrigerants.
Inactivation of Anisakis larvae in salt-fermented squid and pollock tripe by freezing, salting, and combined treatment with chlorine and ultrasound.
Modeling cross-contamination during poultry processing: dynamics in the chiller tank.
Surface decontamination with essential oil nanoemulsion and ultraclean map packaging increases the shelf-life of refrigerated fresh cut pineapple.
Application of natural refrigerants in the industrial refrigeration and heat pumps in the future.
Shelf-life of pacific white shrimp (Litopenaeus vannamei) as affected by weakly acidic electrolyzed water ice-glazing and modified atmosphere packaging.
Solid State (Metal Hydride) Refrigerant Based Air Conditioner and Freezer Systems.
Monitoring and assessment of an industrial antifouling treatment. Seasonal effects and influence of water velocity in an open once-through seawater cooling system.
High-temperature working fluids for heat pumps – A way to select the optimal fluid for a given application.
Hydrofluorocarbons (HFCs), Chapter 2 in Scientific Assessment of Ozone Depletion: 2018.
Combined effect of electrolyzed oxidizing water and chitosan on the microbiological, physicochemical, and sensory attributes of American shad (Alosa sapidissima) during refrigerated storage.
Accelerated equipment reliability evaluation of R-13I1 (CF3I) in R-466A.
Cryogenics in high-current busbars – Solutions and requirements.
Predictions of the ideal gas properties of refrigerant molecules.
Refrigeration sector monitoring
19 results
Briefs: WMO-UNEP
The WMO-UNEP "Scientific Assessment of Ozone Depletion: 2010" launched on the International Day for the Preservation of the Ozone Layer (September 16) highlights Montreal Protocol contributions toward reducing global greenhouse gas emissions. It...
Mexico
Mexico has ceased all production of ozone-depleting chlorofluorocarbons (CFCs) 4 years ahead of the deadline defined in the 1987 Montreal Protocol. Figuring amongst the 189 nations to date to ratify the protocol on ozone-depleting gases containing...
Briefs: 72 bacterial species identified in domestic refrigerators
French agency, AFSSA (Agence Française de Sécurité Sanitaire des Aliments) recently conducted a microbiological study on 2 types of refrigeration installations related to domestic food consumption: refrigerated display cabinets and domestic...
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.
A responsible community, from science to society
IIR newsletter focus, by Philippe Lebrun, President of the General Conference of the IIR
Incidents with fake refrigerants
Incidents involving fake refrigerants have hit the headlines on various occasions recently. The incidents often involve R40 (methyl chloride), a hazardous chemical compound, or other substances.
PCMs and ice slurries: PCMs: two recent applications
Phase-change materials (PCMs) can provide thermal storage which means that they can absorb thermal energy when they solidify and release it when they melt. This can be very useful to dampen temperature swings. PCMs are usually water-based and are...
R&D
The US Department of Energy's National Renewable Energy Laboratory (NREL) has developed a new air-conditioning system combining membranes, evaporative coolers and desiccants into a single device with the objective to suit to all climates,...
New solar-cooling technology for cooling-freezing
Refrigeration is often based on compressor technology which consumes electricity. A recently developed system making it possible to achieve relatively low temperatures solely using solar energy has been designed by PROMES, a laboratory working...
Sorption chillers
Sorption chiller technology is rapidly developing, especially that using solar energy. - As highlighted by Jacob and Kohlenbach* during the latest IIR Gustav Lorentzen Conference on Natural Working Fluids in Sydney, in Europe, numerous new...
Fake refrigerants cause havoc
A series of reefer explosions could have been caused by impure refrigerants
Liquid desiccant AC system cuts ice rink energy bill
Thanks to a liquid-desiccant air-conditioning system and the use of renewable energy sources, Pines Ice Arena in Pembroke, Florida, claims to have achieved 55% electricity savings, as well as a 35% reduction in natural gas consumption and a...
Europe: focus on the consumption, exports, production and destruction of ozone depleting substances.
The European Environment Agency published in September 2017 a report aggregating data submitted by companies using ozone depleting substances.
US: first propane cold storage system to be installed?
Newark Refrigerated Warehouse plans to install a cold-storage refrigeration using propane in the USA.
North America: Ice rinks and the phaseout of HCFC-22.
Retrofits in Minnesota and Michigan provide examples of good options.
IIR news
7 results
New IIR publications: Properties of Secondary Working Fluids for Indirect Systems
This expanded 2nd edition responds to rising use of secondary refrigerant systems used in many applications. It comprises comprehensive data on a number of aqueous solutions of ethylene and propylene glycol, ethanol, glycerol, ammonia, chlorides...
Double Award for Coldway Technologies, part of SOFRIGAM Group
Sofrigam won two awards at Business France's pitch competition for its energy storage device "THERMOSTORE", utilizing ammonia. Let's take a closer look at this technology.
Now available: IIR-Gustav Lorentzen Conference Papers 2022
Download one or all of the 170 technical papers from the 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants!
Activities of the IIR’s Commission D2 on Refrigerated Transport
The role of the IIR is well recognized worldwide, and in particular the expertise of the members of Commission D2 makes an important contribution to refrigerated transport issues: avoiding the wastage of food and the minimizing of emissions.
Gustav Lorentzen conference 2022
After two years of pandemic during which the conferences were either cancelled or held online, the IIR had the pleasure of organising a conference on site, in Norway. It was attended by 332 participants. The...
IIR Working Group on the Cold Chain in Warm Countries appoints a new chairperson
Newly appointed chairperson, Halima Thraya, will oversee and coordinate the various efforts and projects carried out by the Working Group.
Commission C2: paving the way on food science & engineering
Coordinated by the Science and Technology Council, Commission C2 focuses on research and breakthrough technologies related to food science and engineering.
