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IIR document
Thermodynamic properties of ammonia-oil-mixtures that influence the efficiency of an evaporator.
Desarrollo de nuevos refrigerantes mas eficientes y con bajo PCA para equipos fijos de climatización y refrigeración.
Development of new low GWP and high efficiency refrigerants for stationary equipment for air conditioning and refrigeration.
PVT-measurements for high-temp ammonia heat pump lubricants.
Experimental investigations of the influence of dissolved ammonia on the low temperature-cold-flow properties of refrigeration oils.
PT and viscosity measurements of high-temperature ammonia heat pump lubricants.
Gli oli per i refrigeranti naturali.
Lubricating oils for natural refrigerants.
Impact of oil on flow boiling of ammonia and of R-723 in smooth horizontal tubes.
Flow boiling of R723 (ammonia/dimethylether) in smooth horizontal tubes in the presence of oil.
Contaminants in ammonia refrigeration systems.
Refrigeration sector monitoring
616 results
Evaporative cooling without adding humidity
Scientists at the University of Harvard have designed a prototype evaporative cooling system called Cold-SNAP that effectively cools air at low cost for both dry and humid climates.
The economic advantages of evaporative cooling
ACHR News recently published an article focusing on the advantages of evaporative cooling in commercial buildings.
The environmental benefits of evaporative cooling
An Eurovent study shows that evaporative cooling could help save up to 56,000 tons of CO2 emissions per year in the future in the European Union. Evaporative cooling is present in half of the projects presented by the eight Global Cooling Prize...
The global evaporative condensing unit market.
A projection for the ten next years.
LNG news: Singapore
Singapore is to import liquefied natural gas (LNG) in order to meet rising demand for energy. It's first LNG terminal will produce 3 million tons of LNG/year. Singapore aims to diversify its energy sources and to implement a more stable pricing...
Singapore experiments with outdoor air thermoelectric cooling
In Singapore, the terrace of a riverside restaurant and children play areas are now cooled by a solid-state thermoelectric cooling technology.
Evaporative cooling experimentations in urban areas
Various researches are currently being conducted to study the impact of evaporative cooling in urban areas.
Evaporative cooling: continuation of the Cold-Snap project at Harvard University
Tests show that Cold-Snap evaporative cooling technology would be effective in humid climates, while limiting water consumption.
Air conditioning units in Singapore
From an ownership of 58.3% among Singapore households in 1998, this figure grew to 76.1% in 2013.
United Kingdom: evaporative cooling for Tesco superstores
Thanks to evaporative cooling, Tesco expects to lower the energy consumtpion in its supermarkets and to reduce significantly its maintenance costs.
Evaporative and thermoelectric cooling improve the efficiency of solar panels
Among several cooling methods reviewed in an article in Energies, evaporative and thermoelectric cooling offer substantial improvements in energy efficiency and a positive environmental footprint while...
Passive cooling by combining evaporation, radiation and insulation
ICER, a new passive cooling technique, can extend food shelf life by 40% in humid climates and 200% in dry climates with low water-refilling frequences.
Briefs: Accessible and free evaporative solution
A simple and ingenious utensil, the zeer pot, makes it possible to extend the shelf life of produce for several days and is becoming very popular in Africa. The system was invented by Mohammad Bah Abba, a Nigerian teacher and consultant to the...
Briefs: Evaporating tiles to cool rooms
UK Loughborough University's Zephyr project "Ceiling tiles" was finalist in the Financial Times Climate Change Challenge. The tiles draw up heat from a room which passes through a moist wick surface in the ceiling tile, achieving cooling lowering...
IIR member news: EPEE Gapometer
EPEE, benefactor member of the IIR, is currently developing a tool to support the implementation of the European Union F-Gas Regulation
IIR news
240 results
New IIR Informatory Note on evaporative cooling
The latest IIR Informatory Note highlights that evaporative cooling is an energy-efficient technology that has many applications in air conditioning but also in short-term food storage.
Conference update: Baotou
The 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV) is to take place in Baotou, China, on August 23-27, 2010. Don't miss this fourth cutting-edge event in the series!
Conference update: Singapore
The 1st IIR Cold Chain Conference will take place in Singapore on April 27-29, 2009. Keep updated: brendan@airah.org.au, www.airah.org.au
The 1st IIR Cold Chain Conference will take place in Singapore, on April 27-29, 2009. Keep updated: david@airah.org.au or
The 1st IIR Cold Chain Conference that was scheduled to take place in Singapore on April 27-29, 2009 is postponed. It will be held at another venue: for updates, check out
Conference reports: Baotou
The 4th IIR Conference on Magnetic Refrigeration (Thermag IV) took place in Baotou, China, on August 23-28, 2010. Almost 120 attendees participated in this conference and new work closer to the market will be launched (see the Focus).
Singapore event postponed : watch this space
Due to the current world economic situation, the IIR, the Australian Institute of Refrigeration, Air Conditioning and Heating (AIRAH) and the Global Cold Chain Alliance (GCCA) have postponed the 1st IIR International Cold Chain Conference which...
The 27th IIR Informatory Note on evaporative cooling.
This 27th IIR Informatory Note provides a state of the art of the simple and practical technology that is Evaporative Cooling.
New joint IIR-FAO actions in Africa
A new phase for joint IIR-FAO actions in Africa
Walk-in cold rooms: webinar replay and slides now available
Thank you for taking part in our second webinar! You can now download the slides and watch the replay on the IIR YouTube channel. Furthermore, the overview guide is also available in...
Experience the unforgettable in Japan at ICR2015: It’s not just about refrigeration, it’s also about fun!
ICR2015: Discover the plenary speakers, technical tours, and popular tours and activities
The next IIR Conference on the Cold Chain goes to Japan in 2024!
Don’t miss out! Save the date for the 8th IIR Conference on Sustainability and the Cold Chain to take place on June 9-11, 2024, in Tokyo (Japan).
Call for industrial partners for joint industry cryogenics project linked to LNG production
Become a project partner: Join the Joint Industry Project of MINES ParisTech – ARMINES “Evaluation of the crystallization risk in LNG production”.
Mid-Term Conference of the BETTED Project at FOOD 4 FUTURE 2025
At the FOOD 4 FUTURE event in Bilbao, the BETTED project consortium emphasised the importance of energy efficiency in the sustainable transformation of the dairy sector and held its mid-term...
Past events: The IIR around the world, August and September 2024
A look back at the IIR’s latest events during conferences (Gustav Lorentzen, Thermag, Compressors) and during sponsored vents (CHPC).
Encyclopedia of Refrigeration
16 results
For IIR members only
Global cold storage capacity
This table presents the cold storage capacity in about 50 countries, based on data from the Global Cold Chain Alliance (GCCA).
Environmental impact of the ice cream industry
This summary document describes the environmental impact of ice cream manufacturing, which is mainly due to the energy consumption and refrigerants used.
Ice cream manufacturing, environmental impact and market data
From a physico-chemical point of view, ice cream is a complex, frozen multiphase mixture. The manufacturing process includes several stages of freezing which are described in this...
Kigali Amendment status per country
List of the 163 countries that have accepted, approved or ratified the Kigali Amendment as of November 15, 2024.
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.
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...
Thermophysical properties of hydrocarbon refrigerants
Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.
Thermophysical properties of HFC refrigerants
Thermophysical properties of over 100 HFC refrigerants, including single-component and blends.
Thermophysical properties of HFO refrigerants
Thermophysical properties of over 50 HFO refrigerants, including single-component and blends.
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...
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...
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...
Cryogenic nitrogen in the food and beverage industry
The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...
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...
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...
Events
5 results
IIR event
17th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL 2026)
August 23, 2026 - August 26, 2026
Hamilton, New Zealand
Submit your abstract! With the increasing need for global warming countermeasures, natural working fluids have become a clear vector to reducing the CO2 footprint of...
Find out more
Webinar – Refrigerated Transport in Hot Climates: Challenges and Innovations
December 09, 2025
France
Objective: To share key insights from the UNEP/IIR Cold Chain Technology Brief: Road Refrigerated Transport in Hot Climates, foster dialogue between experts, industry, and policymakers, and promote sustainable...
Other event
15th IEA Heat Pump Conference
May 26, 2026 - May 29, 2026
Vienna, Austria
Join the 15th IEA Heat Pump Conference, which will take place in Vienna, Austria,from May 26-29, 2026! The 15th IEA Heat Pump Conference, co-sponsored by IIR,...
21st International Conference & Exhibition on Liquefied Natural Gas (LNG2026)
February 02, 2026 - February 05, 2026
Doha, Qatar
Register...
15th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
September 16, 2026 - September 18, 2026
Xi'an, China
Call for abstracts is open! The 15th IIR Conference on Phase-Change Materials and Slurries for Refrigeration...
