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IIR document
Measurements of pρTx and specific heat capacity cv for (R290 + R1243zf) binary mixtures at temperatures from (292 to 350) K and pressures up to 11 MPa.
CFD Modeling of Pressure Drop through an OCP Server for Data Center Applications.
Modélisation CFD de la chute de pression dans un serveur OCP pour les applications de centre de données.
Pressure drop during near-critical-pressure condensation of refrigerant blends.
RACHP Systems: the pressure equipment (safety) regulations and pressure equipment directive
Saturation pressure measurements of the new refrigerant HFO1132(E).
A small-scale natural gas liquefaction process utilizing the pressure energy of the high-pressure pipelines.
Cryogenic high-pressure thermomechanical pressurizer.
Saturated pressure measurements of cis-pentafluoroprop-1-ene (R1225ye(Z)).
Measurements of saturation pressures for the novel refrigerant R1132(E).
Modeling of the microbial inactivation by high hydrostatic pressure freezing.
Effects of temperature and pressure on the surface tension of low viscose lubricants in high pressure atmospheres.
Freezing under pressure: A new method for cryopreservation.
Experimental measurements of saturated vapor pressure and gaseous pvT property for 2,3,3,3-tetrafluoroprop-1-ene (HFO-1234yf).
The application of nozzles for the attenuation of volumetric compressor pressure pulsation.
Refrigeration sector monitoring
224 results
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...
Vapour-compression alternatives to serve future HVAC applications
A March 2014 report* prepared for the US Department of Energy by Navigant Consulting identifies and evaluates 17 technologies which could potentially replace traditional vapour-compression technology in residential and commercial HVAC applications
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.
Pressure exchanger enhances efficiency of CO2 refrigeration systems
A new pressure exchanger technology, adapted from the desalination industry, offers significant energy efficiency improvements for CO2 refrigeration systems, addressing challenges of high energy...
GEA AWP develops a new high-pressure float valve for NH3 and CO2
The Company GEA AWP has introduced an innovative mechanical high-pressure float valve designed for industrial refrigeration systems using NH3 and CO2.
Japan: update of the High Pressure Gas Safety Act
Since July 2017, revisions of this regulation expedite the adoption of alternative refrigerants with lower GWP.
The benefits of 3D printing in refrigeration and air conditioning
The various applications of 3D printing in the field of refrigeration and air conditioning highlight possible tremendous advantages in terms of energy efficiency and cost minimisation.
3D printing for passive buildings
3D printing of buildings, which has advantages in terms of cost and speed of construction, can also facilitate the design of near zero energy buildings.
World’s first 3D printed fully functional air conditioner
Haier Group unveiled the world’s first ever 3D printed fully functional air conditioner.
Temperature control and sustainability, the challenges of 3D meat printing
Temperature control is a key factor that still limits the application of 3D printing in the meat industry, according to recent scientific publications.
Cryogenics and 3D-printing techniques could allow the replication of human tissues
A team of researchers from Imperial College London have developed a new technique which could allow the replication of human brain and lung tissue and regenerate damaged parts.
Repealing the Carbon Tax in Australia.
The Australian Government decided to abolish the carbon tax from 1 July 2014.
US : increasing use of CO2 and propane in commercial refrigeration
As a result of regulations aimed at limiting the use of HFCs, the use of CO2 and propane as refrigerants in supermarkets in the United States is experiencing a steady growth.
CO2 growth figures
The Shecco Guide 2014: Natural Refrigerants Continued Growth & Innovation in Europe shows that to date (2013), there are 2885 CO2 transcritical (TC) systems installed in Europe (3100+ installations worldwide), a significant increase of 117%...
Growth in the world heat pump market
The world heat pump market increased 7.2% by volume in 2013 to almost 2 million units.
IIR news
61 results
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...
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.
IIR member news: Angelantoni Group
“COLD ENERGY” is an innovative solution to improve energy efficiency both for old and new compression refrigeration systems by transferring a highly efficient automotive technology to enhance energy recovery of heat exchangers.
Compressors Conference 2023 in London: Register today!
The 13th International Conference on Compressors and their Systems will be held this September in London.
IIR Conference report: Ohrid
The 4th IIR Conference on Ammonia Refrigeration Technology took place in Ohrid, Macedonia (FYROM), on April 14-16, 2011. 111 persons from 33 countries attended. Scientific papers were presented, and policy and regulations issues were covered.
Call for abstracts now open! 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants
Prospective authors of papers are encouraged to submit 150-200 word abstracts by September 15, 2021.
Technical visit to the Tokyo fish market
At the ICCC conference last June, attendees had the opportunity to participate in technical visits, including a tour of the Tokyo fish market. Alain Le Bail, President of IIR Commission C2, joined the visit and...
New publications
The IIR has issued 3 new publications: - the 20th Informatory Note on Refrigerating Technologies Magnetic Refrigeration at Room Temperature, written by P. Egolf - Chairman of the IIR working party dedicated to this technology - and Ronald...
New IIR Informatory Note on high-temperature heat pumps
IRR’s latest Informatory Note demonstrates that high-temperature heat pumps are a key technology in the decarbonisation of process industries.
New IIR Informatory Note on Air-source heat pumps for space heating and cooling
The IIR has issued a new Informatory Note on Air source heat pumps for space heating and cooling. A summary for policymakers and a Chinese version of this note have also been published.
Member news: Mirai Intex releases new high capacity ultra-low temperature refrigeration system
Mirai Intex, corporate member of the IIR, has released a new ultra-low temperature (ULT) system based on air-cycle technology, offering high cooling capacity.
News from IIR members: Air Liquide
Air Liquide and VitalAire are launching a new, personalized support programme for sleep apnoea patients. This disorder affects 1.5 million people in France, and 5% of the world's adult population. Eight out of 10 persons suffering from this...
New IIR Informatory Note: “Whole Body Cryotherapy/Cryostimulation”
Learn about the latest advances and the challenges related to these rapidly developing techniques.
Member news: Efficient Energy has been rewarded for its remarkable growth over the last 4 years
Energy Efficient, an IIR corporate member, ranked third in the latest Deloitte Technology Fast 50 in Germany. This ranking rewards companies based on the percentage increase in their revenue over the last four...
Download the latest technical papers from the IIR Cryogenics Conference
Held on 8-11 April this year, the 15th IIR Cryogenics Conference welcomed over 120 guests from more than 22 countries.
Encyclopedia of Refrigeration
11 results
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...
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.
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...
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...
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...
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.
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...
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...
Events
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Other event
21st International Conference & Exhibition on Liquefied Natural Gas (LNG2026)
February 02, 2026 - February 05, 2026
Doha, Qatar
Register...
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