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Experimental investigation of screw compressor clearance monitoring techniques.
Measurement of clearance around bush in swing compressor by visualization of behavior.
Recommended by the IIR
Reducing rotors clearance - a way to increase the performance of a screw compressor.
IIR document
Edge gap as a geometric parameter to characterize the sealing performance of compressor valves.
Scrutinizing the sources of inefficiencies in the piston-cylinder clearance of an oil-free linear compressor.
Leakage simulation of a lubricant-free rotary swing compressor rotor endface clearance.
Recommended by the IIR / IIR document
Numerical analysis of the transient compressible fluid flow in the piston-cylinder clearance of an oil-free linear compressor.
The effect of clearance control on the performance of an oil-free linear refrigeration compressor and a comparison between using a bleed flow and a DC current bias.
Effects of gas compressibility and piston secondary motion on leakage in the piston-cylinder clearance of reciprocating compressors.
Structural analysis of reciprocating compressor manifold.
Development of an evolutionary three-dimensional scroll compressor.
Experimental investigation of the transient flow in roots blower.
Numerical modeling of capillary compensated aerostatic bearing applied to linear reciprocating compressor.
Fluid flow through front clearances of dry running screw machines using dimensionless numbers.
Effect of tip clearance, winglets, and shroud height on the tip leakage in axial flow fans.
Refrigeration sector monitoring
682 results
Solar heating and cooling: key trends and challenges
In 2020, the solar thermal energy yield amounted to 407 TWh, which correlates to savings of 43.8 million tons of oil and 141.3 million tons of CO2. Although still only a niche market, solar cooling...
New radiative cooling technology promises breakthrough for vertical surfaces
A new radiative cooling material designed for vertical surfaces demonstrates cooling 2.5°C below ambient, offering solutions for urban heat.
Breakthrough fluorescent imaging for precise cancer cryosurgery
Researchers at NYU Abu Dhabi (NYUAD) have developed a specialised nanoscale material that illuminates cancer cells under freezing conditions, enhancing surgeons’ ability to detect and remove cancer cells during...
A new CO2 system as a major advancement for the convenience store refrigeration market
In UK, Space Engineering has launched a new CO2-based integrated refrigeration system which is said to be ideal for convenience stores.
The stakes of air conditioning in China
A recent IEA report highlights the impressive growth in current and future demand in the air-conditioning sector in China. However, it considers that strong energy efficiency policies for air conditioners coupled with improved building design and...
UK younger shoppers neglect their freezers
Freezers across the UK are ‘neglected’, ‘under-used’ and ‘under-appreciated’, with younger shoppers dubbing them ‘graveyards’ for food that is soon to go off, according to the latest consumer research from IGD ShopperVista.
Data centres: the challenges of energy-efficient chip cooling
Innovative liquid cooling solutions are under development to further reduce energy consumption in the ever-growing number of data centres.
The challenges of thermal management of next-generation electronic equipment
With the increasing integration and miniaturization of electronic devices, the heat flows they generate are constantly increasing. Spray cooling has many advantages in this regard.
The challenges of vaccinating against rabies in hot countries
A large campaign of dog vaccination is currently being conducted in hot countries, raising the issue of the conservation temperature of vaccines.
Road to COP28: Energy efficiency, the key to sustainable cooling in Africa
According to Francis Sempore, director of ECREEE, energy efficiency is a key sustainability issue that needs to be promoted, funded and supported through the implementation of...
Europe dominated the global frozen food market in 2020
2020 has seen record sales in the frozen food sector. According to Frozen Food Europe, Europe had the largest share of the global frozen food market in 2020. Asia Pacific, the Middle East and Africa are...
Reefer container throughput in main European ports.
In 2021, Europe’s leading ports were back to pre-pandemic levels of cargo and container throughput.
German ice-cream market most valuable in Europe
The German ice-cream market is the most valuable in Europe, worth 2.01 billion € in 2013.
Heat from Scottish water could save € 300 million
Using heat pumps in the rivers and lochs of Scotland could save businesses in the country around € 300 million annually on bills.
European Commission launches €1 billion Green Deal call
Organised under 10 key focus areas and 20 topics, the European Green Deal aims to tackle the challenges and take advantage of the opportunities of climate change.
IIR news
413 results
Cooling data centres: A major economic challenge
Larger data centres can use a staggering amount of energy just to ensure the day-to-day running of electronic equipment. As a result, these data centres can produce a great deal of heat, which require large-scale cooling systems in order to...
AFF “Vœux du froid 2025”: A key event in the refrigeration industry
The IIR participated in the Refrigeration Season Greetings event hosted by the French Association of Refrigeration on January 16, which was a successful opportunity to discuss the critical role of refrigeration...
Job opportunities: Sainsbury’s is looking for young graduate engineers.
Sainsbury’s is looking for young graduate engineers: £27,000 (32,500 €) starting salary, six monthly reviews and performance relative bonus.
Discover the winners of the IIR Young Researchers’ Awards 2023
Every four years at its Congress, the IIR offers a series of Young Researchers’ Awards to pay tribute to the work carried out by young researchers in the field of refrigeration. Discover this year’s...
The First Students and Researchers Network!
During the Prague congress, a great turn-out of 70 young researchers of over 20 different nationalities met face to face with 30 leading experts in various fields of refrigeration.
Student Networking at ICR 2023: An afternoon dedicated to young people!
At ICR 2023, Wednesday, August 23 was punctuated by an afternoon dedicated to young people!
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...
IJR editorial: The cop on climate change: a growing presence of refrigeration issues to be consolidated
The Conference of the Parties on climate change was held in Sharm-El-Sheikh (Egypt) from Sunday 6 November to Sunday 20 November 2022. Generally speaking, this COP did not result in the decisions and actions...
Cooling Matters: World Refrigeration Day Announces 2022 Theme
Celebrated on and around June 26 each year, World Refrigeration Day aims to raise awareness among the wider public about the importance of refrigeration technologies in everyday life.
Driving Consistent and High-Quality Training on Alternative Refrigerants Across Europe
Real Alternatives is driving consistent and high-quality training on low-GWP alternative refrigerants across Europe, providing a comprehensive certification system to support the transition away from fluorinated...
The IIR supports innovative European research projects on refrigeration
In line with its international activities, the IIR is currently involved in two European research projects both focused on very distinct areas of refrigeration technologies.
The IIR at the refrigeration forefront of EU projects
Generally involved in the dissemination process, the IIR makes use of its network, activities and services to promote worldwide the research outcomes of the EU projects.
New European projects for the IIR
In line with its international activities, the IIR is going to take part in two European projects which have just been validated by the European Commission.
We are hiring a Project Management Consultant – Capacity Building
The IIR is seeking a skilled and impact-driven Project Management Consultant with a strong focus on capacity building to support the planning, coordination, and delivery of international initiatives in the...
Encyclopedia of Refrigeration
10 results
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...
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...
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.
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...
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...
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...
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...
André Lebon
André Lebon (1859 – 1938). Membre fondateur de l’Association Internationale du Froid puis de l’Institut International du Froid
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 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
2 results
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,...
Find out more
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...
