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IIR document
Data driven assessment of a small scale evaporative condenser based on a combined artificial neural network with design of experiment approach.
In-flight testing of loop thermosyphons for aircraft cooling.
Development, testing and evaluation of 2L refrigerants.
Design, development and testing of a compressive thermoelastic cooling system.
Cryogenic tests results of the regular superconducting magnets of the NICA collider.
Fractionation testing for low critical temperature blends.
Dynamic testing and modeling of a diffusion absorption refrigeration system.
A2L refrigerants leak and ignition testing for a walk-in cooler system.
Evaluation of positive displacement compressor testing techniques, variation, and uncertainty.
Hot surface ignition testing of low GWP 2L refrigerants.
Recommended by the IIR / IIR document
The first tests on the vertical cryostat Gersemi with the liquid insert at FREIA laboratory.
Manufacturing & testing of air-to-refrigerant heat exchangers based on 0.8mm diameter tubes.
Optimization and further experimental testing of a resistive sensor for monitoring frost formation in refrigeration systems.
Fractionation, release testing and flammability evaluation of novel refrigerants comprising R-744 and fluorocarbons.
Refrigeration sector monitoring
219 results
Successful test of the cryogenic engine to be used to launch India's second moon mission
The Indian Space Research Organisation has successfully tested the Cryogenic Engine CE-20, which will power GSLV Mk-III, the launch vehicle for Chandrayaan-2, India's second lunar exploration mission.
Testing a prototype outdoor air conditioner using liquid nitrogen
In September 2022, a start-up is testing a prototype outdoor air conditioning system using liquid nitrogen in a few restaurants.
Montreal Protocol 25th Anniversary video competition
A global video competition for young people born in or after September 1987
Vapour compression refrigeration for space applications
An IJR review paper presents the history of vapour-compression refrigeration systems used in microgravity environments and sets the next steps of research needed to achieve reliable...
Assessing the market potential of industrial heat pumps in Europe
To address the lack of product development of high temperature heat pumps, a recent article provides manufacturers with an estimate of the industrial heat pump market potential in...
Kenyan fish processing facility upgrades from R22 to ammonia
East Africa Sea Foods (EASF), a fish processing facility in Kenya, recently replaced its aging R22 refrigeration system with a two-stage ammonia system.
Road to COP28. How can we achieve sustainability in gas processing and liquefaction?
In gas processing plants, focus should be set on non-flaring operation and reduction of releases caused by leaks, says Dr Heinz Bauer, IIR expert....
Addressing gender and regional disparities in access to cooling
The annual Chilling Prospects report estimates that 1.12 billion poor people in rural and urban areas are at high risk due to a lack of access to cooling.
Assessing the effects of CO2 cryocapture
According to Physicists at the University of Oregon, refrigerating coal plant emissions would reduce CO2 emissions by 90%, and reduce levels of other dangerous chemicals such as SO2 and Mercury, but would raise electricity costs by about 25%.
Assessing indoor air quality: Air conditioning
The quality of indoor air and how to assess it are increasingly raising concern, whether this is related to the efficiency of air-conditioning systems or of air cleaners. Air conditioning against high CO2 levels. According to a recent KPMG study...
Assessing indoor air quality: Air cleaners
The quality of indoor air and how to assess it are increasingly raising concern, whether this is related to the efficiency of air-conditioning systems or of air cleaners. Air-cleaner market is doing fine. According to the Environmental Protection...
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...
Food processing: a priority sector for India
India’s food minister believes that with a better supply chain, the country could be a global food processing powerhouse.
Fusion of a boiler and a heat pump into one new system, thanks to thermal compression
Boostheat company has developed a new technology that is claimed to lead to a new generation of very efficient and renewable heating, hot water and cooling systems.
CO2 system for retrofitting in food processing company
CO2 was chosen over an ammonia cascade plant
IIR news
121 results
Professor Arhkarov's birthday
This month, Prof. Alexey M. Arkharov, a well known scientist in the field of cryogenics, celebrated his 90th birthday.
Now freely accessible: The IIR International Dictionary of Refrigeration
Now available in 11 languages, the complete version of the IIR International Dictionary of Refrigeration is freely accessible online!
Press release: The IIR International Dictionary of Refrigeration is now freely accessible online
Available in 11 languages, the complete version of the International Institute of Refrigeration (IIR) International Dictionary of Refrigeration is now freely accessible online.
Training and courses: Accessible opportunities online
The IIR has taken care to provide you with an exclusive selection of digital training and course material on the main themes of HVACR, including a section dedicated to certification courses from reputable international organisations and companies...
The International Dictionary of Refrigeration is now accessible online
Previously only available in paper format and in just 5 languages, the complete version of the International Dictionary of Refrigeration is now accessible on our website.
Consult our two professional refrigeration directories: Expertise and Laboratories
Thanks to its international network, the IIR has developed two professional directories covering all fields of refrigeration; the IIR Expertise Directory and the Laboratory Directory.
Book your spot! Training session on food refrigeration systems
From July 1 to 5 2024, Professor Don Cleland will be leading a training workshop in London entitled “Cost-Effective Refrigeration”.
Professional forums on cryo-sciences: Experts and young researchers alike
Although significant progress has been made in cold application in life sciences driven by new solutions in the production, storage and handling of bio-products along the entire production chain all the way up to the end-user, there are still many...
An impressive 1,000 abstracts received for the 25th IIR International Congress of Refrigeration
Covering all fields of refrigeration, ICR 2019 is expected to surpass the success of previous congresses, and will be a unique opportunity for researchers and engineers from all over the world to meet, exchange and publish the results of their...
Highlights from the 46th Montreal Protocol OEWG: Addressing Ozone Depletion and Climate Change Challenges
The 46th meeting of the Open-ended Working Group (OEWG) of the Parties to the Montreal Protocol took place in Montreal from 8 to 12 July 2024. The IIR took part of the event.
Press release: An impressive 1,000 abstracts received for the 25th IIR International Congress of Refrigeration
First held in 1908, the International Congress of Refrigeration presented by the International Institute of Refrigeration (IIR) is now the world’s leading event for research and industry in the HVACR sector, cryogenics included.
Professionals, participate in a questionnaire on the cold chain of COVID-19 vaccines (in French)
The AFF (French Association of Refrigeration) has just posted a short online questionnaire for vaccines cold chain professionals in order to enrich the work of its...
International Network for Women in Cooling Launches Online Platform to Connect Women Professionals Around the Globe
Paris, 11 May 2023 — Today, the International Network for Women in Cooling (INWIC) officially launched its web service, available at
Find out what happened at the 2nd Virtual Networking Session at the IIR-Gustav Lorentzen Conference 2020
The IIR Working Group on Careers in Refrigeration (CaRe), the European Partnership for Energy and the Environment (EPEE) and Karlsruhe University of Applied Sciences organised a virtual networking event on...
IIR Congress 2023: Submit an abstract to the session on “Work in Progress & Innovation” before May 31
You have just over a month to submit an abstract to the session on “Work in Progress & Innovation” at the 26th IIR International Congress of Refrigeration.
Encyclopedia of Refrigeration
16 results
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...
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...
Cold storage conditions for fruits and vegetables
Practical recommendations for the cold storage of over 200 cultivars of fruits, vegetables and herbs (storage temperatures, relative humidity, storage time, controlled atmosphere...
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...
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.
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...
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...
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.
Kigali Amendment status per country
List of the 163 countries that have accepted, approved or ratified the Kigali Amendment as of November 15, 2024.
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).
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.
Global HFC emissions from the refrigeration sector
This table shows HFC emissions from the refrigeration sector – including air conditioning – in million tonnes of CO2 equivalent for about 40 countries that are signatories...
Events
1 result
Other event
21st International Conference & Exhibition on Liquefied Natural Gas (LNG2026)
February 02, 2026 - February 05, 2026
Doha, Qatar
Register...
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