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IIR document
Development of PCM based packaging material for thermal buffering.
A short note on the application of the Cisternas-Lam vapor pressure model for liquid desiccant dehumidifier systems.
Minimizing annual energy consumption using innovative cooling system architecture for diverse climatic conditions.
Presentation of an integrated cooling system for enhancement of cooling capability in Heller cooling tower with thermodynamic analyses and optimization.
Solar-powered mechanical subcooling refrigeration system for hot climates.
Recommended by the IIR / IIR document
Heat-driven snow production applying ejector and natural refrigerant.
Two-stage high temperature hybrid heat pump with parallel heat sinks.
Exergy, environmental, and economic analyses of solar-powered dedicated mechanical subcooling refrigeration in hot climates.
Design and characterization of refrigerant reference leaks.
Development, experimental testing, and performance analysis of a two-stage steam turbo compressor HTHP for solar assisted heat supply.
Performance comparison of a lab and industrial scale propane-butane cascade heat pump.
Analysis of the heat transfer area distribution in a frosted plain fin-and-tube geometry.
Recent advancements in geothermal energy piles performance and design.
Integrated high temperature heat pumps and thermal storage tanks for combined heating and cooling in the industry
Performance analysis of high temperature heat pumps and thermal energy storages for a dairy.
Refrigeration sector monitoring
1209 results
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...
Prehistoric flower from the permafrost blooms again
A team of scientists has reportedly resurrected seeds of a 30 000-years-old variety of Silene stenophylla.
WMO and WHO release new guidelines to protect workers from heat stress
The World Health Organization and the World Meteorological Organization have published a joint report and guidance highlighting the growing global health challenges posed by extreme heat on workers.
How to conduct temperature mapping for vaccine storage: WHO’s latest 2024 guidelines & tool
As part of its Effective Vaccine Management (EVM) initiative, WHO developed a temperature mapping tool and an accompanying user guide for pharmaceutical cold chain monitoring.
Cool bedrooms are healthier
A recent study published in Diabetes, June 2014 issue, shows that cooler bedrooms could enhance the production of « brown fat »
India: solar-powered micro cold rooms
Solar-powered micro cold rooms using phase-change materials could be a solution for small farmers in India.
Chilled beam for health care rooms
The benefits of implementing active chilled beams include downsized ductwork/equipment, energy reductions of up to 50% in some cases, decreased maintenance, optimal comfort and indoor air quality (IAQ)
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...
Ghana: over 5,000 old fridges seized by Customs
This is the result of a new law “LI Act 1932” which entered into force in January 2013 makes illegal the importation of old fridges and air-conditioning systems.
Customs block trade in over 1,300 tonnes of illegal refrigerant
The United Nation Environment Programme reports that illegal trade of over 1,300 tonnes of ozone-depleting gases has been prevented over the last 18 months.
Briefs: Chilled beams take off
Several MIT buildings now boast what looks like slim, fin-tubed radiators in ceiling cavities. These cooling devices are chilled beams. They use water, not air, to remove heat from a room. The potential energy reduction of using chilled beams...
MArkets: Chilled ceilings and beams
Chilled ceilings and beams are booming! The latest developments have enhanced acceptance and the UK market grew 33% in 2006 compared with 2005, rising to around GBP 54 million. Tougher building regulations are raising demand for energy-efficient...
Briefs: Chilled ceilings and beams
Chilled beams and ceilings, considered to be environmentally friendly, aesthetic, silent and energy saving, are attracting a great deal of interest. BSRIA (the Building Services Research and Information Association) estimates that the market,...
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...
Heat exchanger design can improve the performance of PCMs
According to a recent review article, optimising the design of heat exchangers in latent heat thermal energy storage systems (LHTES) is one way of improving the thermal conductivity of phase change materials...
IIR news
279 results
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: 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...
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...
International events: Amsterdam
The 13th European Cold Chain Logistics Program held in Amsterdam, the Netherlands, on February 8-9, 2010 attracted 120 participants from 22 countries, and 20 presentations were given. www.gcca.org
The 12th European Cold Chain Education Program took place in Amsterdam on January 26-27, 2009 and attracted over 160 participants from 24 countries. Thirty-one presentations covered a wide range of logistics issues including ways of adapting to...
The 53rd REHVA General Assembly took place on May 14-16, 2009 in Amsterdam, The Netherlands. D. Coulomb and R Lazzarin attended it. Ways to strengthen our links, particularly regarding co-sponsorship of conferences (eg. 47th AICARR International...
Conference update: Amsterdam
- The IIR co-sponsored 11th European Cold Chain Education Program, an IIR-co-sponsored event, will be held in Amsterdam on February 25-26, 2008. The theme is "Back to basics: safe, efficient and profitable cold storage and distribution". The event...
The IIR co-sponsored 11th European Cold Chain Education Program, an IIR-co-sponsored event, will be held in Amsterdam on February 25-26, 2008. The theme is "Back to basics: safe, efficient and profitable cold storage and distribution". The event...
With "Explore the future: Green, lean, and cost-effective cold storage and distribution operations" as theme, the 12th European Cold Chain Logistics Education Program & Trade Show is to be held on January 26-27, 2009 in Amsterdam. This event...
The theme of the IIR-co-sponsored 11th European Cold Chain Education Program is Back to Basics; safe, efficient and profitable cold storage and distribution. Register now for this event to be held on February 25-26, 2008:
Your International Journal of Refrigeration; still the best in its field
Thomson Reuters confirms that the International Journal of Refrigeration is still the best in its field
IIR website: most downloaded publications in 2023
Discover the three most popular IIR publications of 2023. The focus is on the carbon footprint of the cold chain and cold rooms!
Member news : Danfoss launches thermostatic expansion valve for CO2
Danfoss has recently launched a thermostatic expansion valve for CO2, based on its TE2 valve. It is suitable for small to medium size remote refrigeration systems such as cold rooms and display...
Impact Factor of the International Journal of Refrigeration increases for yet another year
As a reflection of the quality of the journal, the Impact Factor (IF) of the International Journal of Refrigeration (IJR) has improved for a consecutive year, increasing by 16% from 2.779 in 2016 to 3.233 in 2017.
Encyclopedia of Refrigeration
15 results
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...
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...
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.
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 hydrocarbon refrigerants
Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.
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...
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...
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).
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...
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...
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...
Kigali Amendment status per country
List of the 163 countries that have accepted, approved or ratified the Kigali Amendment as of November 15, 2024.
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...
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.
Events
5 results
Other event
15th International Conference on Compressors and their Systems
September 13, 2027 - September 15, 2027
London, United Kingdom
On September 13-15, 2027, the 15th International Conference on Compressors and their Systems of City University of London will provide a forum for debate on developments in air, gas and refrigeration...
Find out more
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,...
IIR event
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...
Sponsored event
28th International Compressor Engineering 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...
19th IIR Conference on Cryogenics
April 26, 2027 - April 30, 2027
Dresden, Germany
The 19th CRYOGENICS 2027 continues in the series of conferences held every two years. The conference will deal with new challenges of the equipment and technologies with temperatures below 120 K (-153°C), as well as with other...
