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IIR document
Three dimensional modelling of water and salting kinetics in dry-cured ham for improved quality control.
Relating microbial growth to volatiles production in cooked ham in view of the development of a fast method of quality assessment in the cold chain.
Methodology for the food preservation assessment of residential refrigerators: Compressor and consumer practices effects on absolute and relative preservation indicators.
Identifying peer groups in a multifamily residential building for eco-feedback design.
Hybrid modeling approach for better identification of building thermal network model and improved prediction.
Air-water two-phase flow distribution in a manifold having four indoor-unit connections of a VRF system.
Comparative free cooling performance evaluation of water-side and air-side economizers for data centers in various regions.
Design and experimental performance of practical model predictive control (MPC) for multi-zone variable refrigerant system (VRF) for small and medium commercial buildings.
Two-phase flow distribution in a refrigerant distributor having four indoor-unit connections of a variable refrigerant flow system.
Optimization method of battery cooling module: battery lifetime prediction using temperature.
Cryopreservation in a Standard Freezer: −28 °C as Alternative Storage Temperature for Amniotic Membrane Transplantation.
A study on the performance of dish solar collector by receiver type.
Experimental characterization of heat transfer inside a refrigerated trailer loaded with carcasses.
Techno-environmental evaluation of a river-source heat pump system using a hot gas bypass valve.
Chromatographic fingerprints supported by artificial neural network for differentiation of fresh and frozen pork.
Refrigeration sector monitoring
1141 results
Briefs: Chameleon tiles for energy savings
It is a well-known fact that dark surfaces absorb the sun's heat, whereas white surfaces reflect it. US Secretary of Energy, Steven Chu, considers that turning all roofs white would eliminate as much greenhouse gas emissions in 20 years as the...
Viagra ice cream, flavoured with champagne
An ice cream which contains Viagra has been developed by a UK company.
Wales to launches its own deep freeze ahead of the Six Nations Championship
Wales is to build a cryotherapy chamber at its rugby training base near Cardiff in time for next year’s Six Nations Championship.
French food banks lack cold storage.
Cold storage capacities have not kept up with the trend.
India: solar-powered micro cold rooms
Solar-powered micro cold rooms using phase-change materials could be a solution for small farmers in India.
India: Himachal Pradesh launched its first solar-powered cold storage
This pilot project brings clean energy to crop storage, aiming to cut losses and support small farmers.
Blueprint for a sustainable off-grid solar-powered cold room 20% cheaper than state of the art
In June 2025, Efficiency for Access published a report on constructing a sustainable solar-powered cold room using natural and locally available materials. Their design reduced embedded GHG emissions by 63% and...
ColdHubs: Revolutionising Nigerian agriculture with solar-powered cold rooms and empowering farmers
ColdHubs, founded by Nnaemeka Ikegwuonu, provides walk-in solar-powered cold rooms to combat post-harvest crop spoilage among small-scale farmers in Nigeria through Cooling-as-a-Service (CaaS). Their latest...
Cool bedrooms are healthier
A recent study published in Diabetes, June 2014 issue, shows that cooler bedrooms could enhance the production of « brown fat »
New vaccine storage facility in Kenya’s Lake Victoria region ensures reliable vaccine access
The new vaccine storage on Lake Victoria is transforming access to life-saving vaccines, increasing coverage and protecting children from preventable diseases.
A refrigerated warehouse in Cameroon.
The first stage of construction of the refrigerated warehouse.
Leak detection thanks to thermal imaging cameras
Thermal imaging cameras can be specially designed for the detection of refrigerant gases.
Briefs: NO-LOSS Campaign
IRHACE (Institute of Refrigeration, Heating and Air Conditioning Engineers of New Zealand) has set up a NO-LOSS campaign designed for technicians, engineers and stakeholders and involving use of comprehensive packs. The knowledge and skills...
New air conditioner system features “3D” camera
Japanese manufacturer Hitachi recently unveiled nine models of residential air conditioners with an unusual feature. The Stainless Clean Shirokuma-kun X series units features the company's "Living Camera 3D" technology.
R22 phase-out in Burkina Faso, Cameroon, Malawi and Uganda
During the final event for the EU-funded SophiA project, participants from Burkina Faso, Cameroon, Malawi and Uganda shared the latest updates on national efforts to phase-out HCFC R22.
IIR news
502 results
Yokohama e yokoso !
From 16 to 22 August 2015, the IIR International Congress of Refrigeration (ICR), recognised internationally as a milestone refrigeration event, will bring together key refrigeration stakeholders from across the globe at the Pacifico Yokohama...
The Congress in Yokohama: a great success!
In Yokohama, the International Congress of Refrigeration (ICR2015), a huge milestone in the refrigeration sector, saw a massive amount of information disseminated and certainly lived up to expectations with almost 1,200 conference delegates, 143...
CryoHub: EU project CryoHub is inviting cold chain companies to become ‘CryoHub Champions’
The CryoHub innovation project investigates and extends the potential of large-scale Cryogenic Energy Storage (CES) and applies the stored energy for both cooling and power generation.
Walk-In Cold Rooms: A Practitioner’s Technical Guide
In many developing countries, agriculture is crucial to livelihoods, and developing the cold chain from field to table can boost incomes and stimulate economic growth. Cold stores are an essential link in the...
A new technical guide on cold rooms
On the occasion of COP 28, the IIR and Efficiency for Access, with the contribution of ESMAP, have published a new guide. It aims to provide accessible and practical guidance to enable developers, owners,...
Join our second Webinar on Walk-In Cold Rooms on June 11!
Book your seat! Register to the second webinar in our '"Cool Insights" series highlighting the use of walk-in cold rooms for precooling and storage of fresh produce in the Global South.
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...
Visit: Cameroon
In November 2004, Philippe Mbesse, the Delegate of Cameroon to the IIR, and Didier Coulomb, met the Ambassador of Cameroon to France, His Excellency Mr Pascal Biloa Tang, in order to strengthen the links between Cameroon and the IIR.
Conference update: Cambridge
The 1st IIR Conference on Sustainability and the Cold Chain will take place on March 29-31, 2010 in Cambridge, UK. Present a paper, check out pre-registration and keep updated on themes and short courses:
The 1st IIR Conference on Sustainability and the Cold Chain is to be held on March 29-31, 2010. The conference, which will attract an international audience of researchers and industrialists, will bring together those with an...
IIR committees meetings in Cambridge
The Management Committee of the IIR met in Cambridge (UK) on March 19, 2005. It was invited by the UK Institute of Refrigeration and Cambridge Refrigeration Technology (CRT), thanks to Robert Heap. The main points discussed during were: - the...
IIR brings its expertise to SophiA’s training in Cameroon
The second capacity building session for SophiA trainers took place in Yaoundé, Cameroon, from January 20 to 24, 2025. The online presentation given by IIR on natural refrigerants in...
March 2023: An active communication and awareness campaign for INDEE+
March 2023 was marked by a series of communication events for INDEE+, gathering all project partners and key Indian HVAC&R stakeholders in India.
Cooling Keeps Food Fresh : Global Campaign Announced for World Refrigeration Day, June 26
Since 2019, June 26 celebrates the World Refrigeration Day. With increasing global stakes at hand over the past years, refrigeration took a leading role at the heart of international...
Awareness campaign on the CLIM'ECO programme in Guadeloupe
The IIR, partner and ambassador of the CLIM'ECO program, has undertaken a mission of sensitisation in Guadeloupe as part of the programme.
Encyclopedia of Refrigeration
15 results
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...
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.
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...
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.
Kigali Amendment status per country
List of the 163 countries that have accepted, approved or ratified the Kigali Amendment as of November 15, 2024.
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...
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...
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 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...
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...
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...
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...
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).
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...
Events
8 results
IIR event
Data Centers at a Crossroads: Energy, Cooling, and Policy Challenges
May 12, 2026
Register...
Find out more
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...
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,...
Sponsored event
2026 China International Heat Pump Conference
October 13, 2026 - October 17, 2026
Shanghai, China
Following the resounding success of the 2nd China Heat Pump Conference (CHPC 2024) in Shenzhen, which gathered over 850 experts and delegates from 33 countries & regions, the upcoming 3rd CHPC in 2026 is poised to further expand its global...
9th International High Performance Buildings Conference at Purdue
July 12, 2026 - July 16, 2026
West Lafayette, IN, United States
A conference co-sponsored by the IIR Since 1972, Herrick Labs has hosted the premier international conferences on Compressor Engineering, Refrigeration and Air-Conditioning, and...
21st International Refrigeration and Air Conditioning Conference at Purdue
28th International Compressor Engineering Conference at Purdue
15th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
September 16, 2026 - September 18, 2026
Xi'an, China
Currently accepting full papers! The 15th IIR Conference on Phase-Change Materials and Slurries for...
