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CFD investigation on particle deposition in aligned and staggered ribbed duct air flows.
Forced convection enhancement in channels with transversal ribs and nanofluids.
IIR document
Experimental study on improving operating conditions of wet cooling towers using various rib numbers of packing.
Experimental and numerical studies of heat transfer and friction factor of therminol liquid phase heat transfer fluid in a ribbed tube.
Numerical analysis of buoyancy effect and heat transfer enhancement in flow of supercritical water through internally ribbed tubes.
Experimental and simulation investigation on heat transfer characteristics of supercritical nitrogen in a new rib tube of open rack vaporizer.
Numerical simulation of flow and heat transfer characteristics of microchannels with ribbed structures of bionic fish fins.
Numerical study of laminar flow and heat transfer in microchannel heat sink with offset ribs on sidewalls.
Effect of right-angled ribbed geometry on the performance of a Ranque–Hilsch vortex tube: A numerical study.
Impact on Heat Transfer Rate Due to an Extended Surface on the Passage of Microchannel Using Cylindrical Ribs with Varying Sector Angle.
Large eddy simulation of flow and heat transfer in a ribbed channel for the internal cooling passage of a gas turbine blade: a review.
Turbulence induced structures in exhaust gas recirculation coolers to enhance thermal performance.
Experimental study of the falling film evaporative cooling on horizontal tubes plates.
Pareto based multi-objective optimization of turbulent heat transfer flow in helically corrugated tubes.
CFD simulation of liquid desiccant dehumidifier performance with smooth and rough plates.
Refrigeration sector monitoring
1616 results
Refrigeration’s contribution to CCS
Led by IFP (France), the European research project Cocate - which brings together 8 other research and industrial partners worldwide for a budget of 4.5 million € - tackles the problems of rolling out a shared transportation infrastructure capable...
Largest US cold storage distribution centre
In the USA, AM King has begun construction of the largest cold storage distribution centre in the country.
Briefs: Largest distribution centre in Africa
The centre, built by Woolworths in Midrand, South Africa has a surface area of 72 000 m². The 2-stage refrigeration system uses 4.2 tons of ammonia. It operates at -9°C/+32°C on the low stage while the high-stage ammonia circuit is used to chill...
UK: frozen food could contribute to food security
A BFFF report concluded that by increasing frozen food consumption, the UK could reduce food waste, boost food affordability and lessen the environmental impact of food, all of which would subsequently contribute to improved food security.
Taiwanese fruit distributor tracks fresh produce via RFID
Je-Nong Cooperative Farm has reduced labor costs by adopting plastic crates with embedded passive UHF EPC tags to track its products.
Limiting global warming to 1.5°C: the potential contribution of the refrigeration sector
The latest IPCC report stresses the importance to limit the increase in the global average temperature to 1.5°C instead of 2°C in order to lower the adaptation needs. The refrigeration sector can contribute to this objective.
Cuba: The health cold chain contributes to life saving vaccination
Since 2021, Cuba has renewed its cold chain equipment at around 70 percent of its vaccination sites and acquired a cold storage chamber.
Contribution of the Montreal Protocol to declining greenhouse gases emissions from the United States
A study confirms the positive impact of the Montreal Protocol on the greenhouse gas (GHG) emissions in the United States.
The State of World Fisheries and Aquaculture 2024: refrigeration contributes to sustain aquatic food supplies amid record high production
Figures from FAO and IIR highlight the importance of the seafood cold chain for a sustainable aquatic food supply through 2050.
A seawater district cooling system in the Caribbean.
A study by Makai Ocean Engineering analyzed the feasibility of using cold deep seawater for a district cooling system in the Caribbean.
Latest progress in the Caribbean Cooling Initiative
Jamaica and the Dominican Republic are working towards setting up policies and minimum energy efficiency requirements to reduce energy consumption and GHG emissions from cooling.
Latin America and the Caribbean: implementing efficiency policies to curb dumping of inefficient air conditioners
According to a report published by the CLASP, 44% of all new air conditioners sold in eleven countries in Latin America and the Caribbean constitute environmental dumping of low efficiency equipment. However,...
HFCs are “ weak ozone-depleting substances”
Although HFCs are promoted as being zero ODP refrigerants, they do have a small but measurable effect on ozone depletion, according to a new study by NASA.
Refrigerated cheese vending machines in French cities
A local cheese dairy has installed refrigerated cheese vending machines in several towns in East Moselle, in the east of France.
French oysters go on sale in a vending machine
A French oyster farmer from Ré Island in France introduced a refrigerated vending machine that dispenses live oysters.
IIR news
618 results
IIR’s contribution and key outcomes at COP29
The International Institute of Refrigeration actively participated in COP29/CMP19/CMA6 held in Baku, Azerbaijan, from 11 November to 22 November 2024, contributing to key discussions and fostering discussions...
Review of F-gas regulation - IIR contribution
The IIR has responded to the European Commission consultation “Fluorinated greenhouse gases – review of EU rules (2015-20)” which aims to collect opinions and suggestions about the update of the F-gas Regulation...
IIR Launches Call for Publication Chair, Lead Authors and Contributors for the Global Refrigeration Outlook
Paris, February 9th, 2026 – The International Institute of Refrigeration (IIR) announces the launch of a global call for a Publication Chair, Lead Authors, and Contributors for its forthcoming flagship...
IIR at the 2024 ASHRAE winter conference and contribution to INWIC at the 2024 AHR expo
During ASHRAE’s Winter and the AHR expo meeting which took place in Chicago on January 20-24, the IIR organised and participated in the International Network of Women in Cooling (INWIC) networking...
J&E Hall International Gold Medal awarded to Pr. Judith Evans for her exceptional contribution to energy and carbon reduction in the food cold chain
Professor Judith Evans, UK delegate to IIR and president of IIR section C, is this year’s recipient of the prestigious J&E Hall International Gold Medal.
Subscribe to the AGRI-COOL Newsletter!
Don't miss out on AGRI-COOL latest updates and advances by subscribing to the project’s upcoming newsletter.
Tribute to Farès Charbel
The IIR is deeply saddened by the passing of prof. Farès Charbel, former Lebanese delegate, and extends its heartfelt condolences to his family.
Tribute to Reinhard Radermacher - IIR Honorary Member
It is with profound sadness that we learnt of the passing of Dr. Reinhard Radermacher on January 24, 2025. The International Institute of Refrigeration (IIR) extends its deepest condolences to his family,...
COOL-SAVE project distributes 1st newsletter
News about cost effective strategies to improve energy efficiency in cooling systems for the food and drink sector...
World Refrigeration Day 2023: Distribute the dedicated flyers!
Titled “Next Generation Cooling”, the World Refrigeration Day 2023 campaign focused on the future of cooling technology, the industry, the people working within it, and those that benefit from...
Learn about the contribution of ammonia pioneers at the IOR historical talk on November 3
Travel back in time and find out more about the early pioneers of ammonia refrigeration at the Institute of Refrigeration's (IOR) historical TechTalk to be held online on November 3.
Call to Action for World Refrigeration Day 2020
In coordination with many supporting associations and companies worldwide, the International Institute of Refrigeration (IIR) is launching a Call to Action for World Refrigeration Day 2020.
The Cold Chain: A logistical challenge at the heart of the distribution of the COVID-19 vaccine
Gérald Cavalier - President of the Science and Technology Council of the International Institute of Refrigeration, President of the French Association of Refrigeration, President of the Cemafroid...
Call for papers: 2014 International Sorption Heat Pump Conference
ISHPC 2014 extends abstract deadline until September 13, 2013
Get your abstract in now for the Gustav Lorentzen Natural Working Fluids Conference
Get your abstract in now for the Gustav Lorentzen Natural Working Fluids Conference To present a paper at this leading conference you need to submit an abstract by the 1st October. The conference takes...
Encyclopedia of Refrigeration
17 results
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...
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...
Thermophysical properties of hydrocarbon refrigerants
Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.
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.
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.
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...
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...
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...
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...
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...
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...
Events
10 results
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
Call for abstracts is open! The 15th IIR Conference on Phase-Change Materials and Slurries for Refrigeration...
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...
27th IIR International Congress of Refrigeration
August 21, 2027 - August 27, 2027
Seoul, Republic of Korea
Save the date! The International Congress of Refrigeration (ICR) is a leading global event in the field of refrigeration, organised by the International Institute of Refrigeration...
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,...
Cooling Without Warming: Energy‑Efficient ACs and Heat Pumps
April 28, 2026
Paris, France
Register here
11th IIR Conference on Solid-State Cooling, Heating and Energy Harvesting
June 07, 2026 - June 11, 2026
Ljubljana, Slovenia
Submit your full paper now! The 11th IIR Conference on Solid-State Cooling, Heating and Energy Harvesting (Thermag 2026), to be...
Sponsored event
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
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...
