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IIR document
Cryogenic high-pressure thermomechanical pressurizer.
Modeling of the microbial inactivation by high hydrostatic pressure freezing.
A small-scale natural gas liquefaction process utilizing the pressure energy of the high-pressure pipelines.
CFD-based analysis & correlation development for a novel multi-furcating heat exchanger for high temperature, high pressure applications.
Explosion characteristics of chlorodifluoromethane and isobutane at high temperature and pressure using a 20-L apparatus.
Optimization of machining performance in high-pressure assisted turning of Ti6A14V alloy.
Thermodynamic analysis of regenerated air-cycle refrigeration in high and low pressure configuration.
Research on the performance of a high pressure 5.3MPa twin screw compressor.
Influence of high-pressure heat treatment on magnetic and magnetocaloric effects in La0.75Sr0.25Mn0.9Co0.1O3.
Development and test results of a cryogenic high-pressure fuel gas system.
Recommended by the IIR / IIR document
How to optimize the floating high pressure
Effect of high-pressure pre-treatments and subsequent frozen storage on quality properties of horse mackerel.
CFD analysis of high pressure compressor: comparison with two refrigerants (R134A and R407C).
Modelling of 3D temperature profiles and pressure drop in concentric three-phase HTS power cables.
Surface tension of low-viscous lubricants in high pressure carbon dioxide atmospheres.
Refrigeration sector monitoring
37 results
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.
A cryogenic distillation column
A high-pressure cryogenic distillation column which replicates a key component of a liquefied natural gas (LNG) plant has been developed in Australia.
ICR2019: overview of current refrigeration research topics (part IV)
Energy storage, desiccant air conditioning, high-temperature heat pumps and ejector technologies were some of the salient topics of the latest IIR Congress. Continuation of the synthesis of key presentations of ICR2019.
ICR 2019: an overview of current refrigeration research (part I)
Presentation of the main scientific and technical topics covered in the papers of the 25th IIR International Congress of Refrigeration and summary of some of the 14 keynotes.
Cryogenics 2021 highlights: applications of liquid nitrogen
Cryopreservation of biological materials to favour biodiversity and cooling of superconducting cables to allow transmission of electrical energy with zero resistance are key applications of liquid...
Kelvion extends its range of natural refrigerant air coolers
To drive decarbonisation by using natural refrigerants such as CO2, ammonia or propane, Kelvion has expanded its range of industrial air cooler. Kelvion is an IIR corporate member.
Reducing the environmental impact of ultra-low temperature refrigeration systems
Ultra-low temperature (ULT) refrigeration systems often use very high-GWP HFCs. Yet, ULT systems are excluded from the scope of the regulations aimed at phasing-down HFCs. An IJR paper reviews the most promising...
Road to COP28. Extending the temperature range and application for heat pumps
To promote decarbonation, “high temperature heat pumps should be designed using waste heat and renewables as a driving energy, and environmentally friendly working fluids”, according...
An ejector refrigeration system optimised for sub-zero temperatures on fishing vessels
Large amounts of diesel fuel are used to power fishing vessels engines and on-board refrigeration systems. In a recent theoretical study, an energy-efficient sub-zero refrigeration system proposed based on a...
An award-winning industrial dairy using an integrated heat pump system
A recent case study examined the energy consumption and system performance of an innovative integrated heat pump system of a dairy located in Norway. This dairy was among the winning projects of the 2019 “Heat...
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.
Evaporative cooling without adding humidity
Scientists at the University of Harvard have designed a prototype evaporative cooling system called Cold-SNAP that effectively cools air at low cost for both dry and humid climates.
Two-phase ejectors: a high potential for energy savings
Two review papers recently published in the IJR highlight ejectors as a promising solution to dramatically improve the efficiency of vapour compression refrigeration systems and outline the challenges that...
Next generation of working pairs in absorption heat pumps
The history and latest developments in working pairs for absorption heat pumps were discussed in a recent review article.
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.
IIR news
12 results
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.
Technical visit to the Tokyo fish market (in French)
During the ICCC conference last June, participants were offered technical visits, including a tour of the Tokyo Fish Market. Alain Le Bail, President of the IIR Commission C2, chose to visit it. Discover his...
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.
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.
A New Era: Dr Yosr Allouche to become the first woman to head the International Institute of Refrigeration
A new chapter has begun for the International Institute of Refrigeration (IIR) with the triumphant election of Dr Yosr Allouche (39) as the first woman to hold the prestigious position of Director...
Highlights: the 25th IIR Congress 2019 brings together over 850 delegates
The congress attracted over 650 papers, including 530 oral presentations, 72 posters, 17 keynotes and 1 plenary session, as well as 9 workshops, 10 IIR Commission and Working Group meetings, and 4 technical tours.
IIR economic news service: the latest from our market report partners
The IIR has established partnerships with several leading market research companies, as well as with establishments that combine and provide detailed reports and global analytical studies on different sectors of the refrigeration or economic...
Ohrid 2015: Ammonia and CO2 refrigeration technologies at the forefront
In light of the intense debate on the F-Gas regulation, its implementation worldwide, as well as proposed amendments to the Montreal Protocol, the conference provided the ideal forum for the exchange of knowledge on ammonia and CO2 technologies.
Interview: Director General of the IIR gives an overview of the trends of the refrigeration sector
In the 2018-2019 international special issue of the Industria & Formazione magazine, Director General of the International Institute of Refrigeration, Didier Coulomb, gives an overview of the impact of the refrigeration sector on climate...
New IIR Informatory Note on solar cooling and other new publications
The IIR has just published an Informatory Note on solar cooling and has posted the Chinese version of the Informatory Note on the role of refrigeration in worldwide nutrition on its website.
Now available: IIR-Gustav Lorentzen Conference Papers
Download your copy of the proceedings of the 14th Gustav Lorentzen Conference on Natural Refrigerants. Over 120 technical papers are available!
What do refrigeration, air conditioning and social media have in common? A lot!
In 2014, an awareness raising social media campaign by Stephen Gill praising the too often overlooked virtues and benefits of refrigeration caused quite a stir, going viral.
Encyclopedia of Refrigeration
7 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...
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...
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...
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...
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...
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...
