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IIR document
Sorption and desorption of water vapor on calcium chloride-anodized alumina composite sorbents.
Water vapor sorption characteristics of calcium chloride-anodized alumina composites.
Investigation on innovative thermal conductive composite strontium chloride for ammonia sorption refrigeration.
Development of thermodynamic data of ammonia chloride salts and salt mixtures for sorption refrigeration systems.
A study into the impact of chloride ions on the make-up hydrogen compressors.
Performance investigation of desiccant liquid air membrane energy exchanger: Air and lithium chloride effects.
Preparation and performance of modified calcium chloride hexahydrate composite phase change material for air-conditioning cold storage.
Experimental study on a solar-powered thermochemical sorption refrigeration system using strontium chloride/EG-ammonia working pair.
Experimental study on heat and mass transfer in falling film absorption of aqueous lithium chloride.
Measurement of solubility and density of water + lithium bromide + lithium chloride and water + lithium bromide + sodium formate systems.
Evaluating the potential of using ethanol/water mixture as a refrigerant in adsorption cooling system by using activated carbon - sodium chloride composite adsorbent.
Direct grain-scale observation of chloride salts contained in the absorber of solid sorption heat pumps to characterize their reaction kinetics.
Preparation, characterisation and property modification of a calcium chloride hexahydrate phase change material slurry with additives for thermal energy transportation.
Estimation of differential heat of dilution for aqueous lithium (bromide, iodide, nitrate, chloride) solution and aqueous (lithium, potassium, sodium) nitrate solution used in absorption cooling systems.
Development of adsorption heat pump using natural mesoporous materials impregnated with chloride component: Part 3 optimum design of adsorbent bed on corrugated type heat exchanger and AHP performances using developed 3-D numerical simulation program.
Refrigeration sector monitoring
16 results
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.
Experimentation of a film rejecting 70% of solar heat
A team of researchers explored the ability of a phase-change material film set on windows to reject incoming solar heat.
Modern cryosurgical techniques and devices
Since the 80’s, device miniaturization makes it possible to introduce endoscopic cryoprobes through natural channels (bronchia, urethra…) without requiring traditional surgery.
Impact of ageing on the energy efficiency of refrigerating household appliances
A recent study shows an average increase in energy consumption of 11% after 2 years of operation and 27% after 16 years for these appliances. Ageing wall insulation and door gasket contribute to this...
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...
IIR news
3 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.
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.
