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Análisis del flujo térmico en tuberías con enfriamiento asimétrico mediante HEATT®.
Heat flow analysis in asymmetrically cooled pipes using HEATT®.
IIR document
An update on refrigeration piping design in New Zealand.
Analysis and control of severe vibration of a screw compressor outlet piping system.
Fundamental study on continuous pipe transportation of ice slurry.
Mechanical integrity for piping and vessels in industrial refrigeration systems.
Numerical simulation on the flow behavior of ice slurry in piping systems.
Analytical solution to steady-state temperature field for straight-row-piped freezing based on superposition of thermal potential.
The challenges of refrigeration piping compliance in a seismic environment.
Investigation of pressure drop in refrigerant pipes of an automotive air conditioning system.
A new self-driven loop heat pipe used in HVAC systems: feasibility analysis.
Design and validation of an adjustable dynamic vibration absorber for piping vibration suppression in skid mounted compressor unit.
Pressure loss and performance assessment of horizontal spiral coil inserted pipes during forced convective evaporation of R-600a.
Design of heat pipe heat sink used for cooling controller of inverter air conditioner.
Two‐phase flow distribution characteristics of a vertical header with protruded branch pipes.
Gas cooler with reduced pipe to pipe heat conduction.
Refrigeration sector monitoring
856 results
New HFO/CO2 blends in the pipeline
The refrigeration and air-conditioning sector has long been divided into two distinct camps, that promoting natural refrigerants and that developing low-GWP fluorocarbons. But could this be about to change?
A free guide for copper pipework support and routing
The IoR published a bulletin providing guidance on pipework support methods for copper pipework designed to contain refrigerant.
CO2 heat pump with variable-displacement compressor/expander in the pipeline
This CO2 heat pump will use oil-free variable-load compressor and variable expander technology, currently tested at Purdue University’s Herrick Laboratories.
Latest news on LNG and bio-LNG infrastructure projects in the pipeline
At the beginning of 2022, several LNG or bio-LNG projects are underway.
Out of ordinary: Biodegradable zippers
Zip-Pak presented a new range of biodegradable zippers at the Anuga Food Tec Exhibition in Cologne in April 2006. Manufacturers can now specify zip-closed degradable packaging that is ideal for produce, nuts, breads and cheeses. The zippers are...
Briefs: First zipper for meat in Europe
SPIS Grilstad is using re-sealable Zip-Pak packaging for its deli meat products and its market share has risen from 18% to 75%. Zip-pak's re-sealable devices have already been used in the US but are new to Europe. A recent study performed a...
Fuel cell vehicles (FCVs) equipped with CO2 air-conditioning systems
In most automotive air-conditioning systems, fluid, heated by the engine, is circulated through the heater to warm the passenger compartment. However, in FCVs and electric vehicles, a heat source is lacking, as they do not have an internal...
Briefs: Fuel cell vehicles (FCVs) equipped with CO2 air-conditioning systems
HACCP food safety plans must be improved
HACCP has the top non-conformity figures globally across certified sites, according to a British Retail Consortium (BRC) report.
A mathematical study presents a general derivation and a quantifcation of the third law of thermodynamics
Two physicists from University College London have provided a derivation of the "unattainability principle", which states that any process cannot reach absolute zero temperature in a finite number of steps.
New refrigerant leak detection and isolation technology.
Toshiba has introduced a system which will automatically isolate a specific section of air conditioning pipework in the event of a leak.
Geothermal heat-pump under supermarket car park
Walmart’s new 12,540 m² prototype store in Burlington, ON, Canada is equipped with a geo-heat exchange heating and cooling system using 15 km of pipes under the store’s parking lot.
Plans for a floating LNG factory
This new type of floating factory could give access to off-shore reserves, without the use of long and expensive ocean-bed pipelines
Underground river to cool the London tube
The "Cooling the Tube" competition in 2003, promising GBP 100 000 to those finding a workable solution to cool the Tube, received 3400 entries. Modern systems with large tunnels and surface lines can be cooled using air-cooling systems. However,...
Briefs: Chip cooling innovations
IBM researchers demonstrated a prototype that integrates a computer chip cooling system into 3-dimensional stacks by piping water directly between each layer in a chip stack. These so-called 3D chip stacks, which take chips and memory devices that...
IIR news
269 results
International events: Taipei
ACRA 2009 (4th Asian Conference on Refrigeration and Air Conditioning) was held in Taipei, Taiwan, on May 20-22, 2009. With 198 attendees from 10 countries and 135 papers presented, this fourth edition confirmed the ongoing success of this series...
Philippe Lebrun received the Mendelssohn Award.
Philippe Lebrun, President of the IIR’s General Conference, received the prestigious Mendelssohn Award conferred by the International Cryogenic Engineering Committee on March 11, 2016.
Appointments: Dr Philippe Lebrun
Dr Philippe Lebrun was awarded an honorary doctorate by Wroclaw University of Technology (Poland), where he was invited to deliver the inaugural lecture of the academic year 2007-2008, entitled "Advanced technology from and for basic science:...
Philippe Lebrun awarded the Samuel C. Collins Award
Philippe Lebrun, President of IIR Section A “Cryogenics and liquefied gases” and member of the IIR Management Committee, has just received the prestigious Samuel C. Collins Award.
CLIM'ECO workshop in Guadeloupe with skipper Victor Jost
CLIM'ECO ambassador and Route du Rhum skipper Victor Jost arrived in Guadeloupe on 28th November. The next day, a CLIM'ECO workshop was organised by the SIGF (Guadeloupean refrigeration workers'...
Briefs: Philippe Lebrun is “Engineer of the Year”
Philippe Lebrun, a member of the Management Committee of the IIR and Head of Section A of the IIR (Cryology and Gas Processing), was awarded the "Prix Ingénieur de l'Année 2010" in the "Science" category, by the French magazine Usine...
Philippe Lebrun to be awarded the Kamerlingh Onnes Medal of Honour
The Kamerlingh Onnes Medal of Honour will be presented to Dr Philippe Lebrun of CERN during the 10th-IIR Gustav Lorentzen Conference on Natural Working Fluids to be held in Delft, the Netherlands on June 25-27, 2012.
Join the FRISBEE Demonstration Day!
On August 29, 2014, for the official closing of FRISBEE, the consortium will hold a “FRISBEE Demonstration Day”
The IIR takes part in a UNIDO project
The IIR has been successful to a UNIDO call for proposals to assess the incremental and operating cost for improved Energy Efficiency in retail refrigeration in Jordan and Tunisia.
The IIR announces role in European "REAL Alternatives" programme.
The International of Refrigeration is pleased to announce its role in a new European learning programme “REAL Alternatives” that will address skills shortages amongst technicians working in the refrigeration, air conditioning and heat pump sector.
The IIR at 34th OEWG in Paris
This week the IIR attended the 34th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol.
Early bird registration is now open for the IIR Congress 2023
The 26th IIR International Congress of Refrigeration will be the event of the year not to be missed! Participate to share the latest...
World Refrigeration Day 2021: Join the “Cool Careers” webinars
Save the date! Participate in a World Refrigeration Day webinar in June.
Take part in the survey: women in RACHP
Are you a woman working in the Refrigeration, Air-Conditioning and Heat Pumps sector? We would like to understand the motivation, challenges and opportunities faced...
Propose a workshop and be part of ICR 2023
Do you have an idea for a workshop you would like to organise during the 26th IIR International Congress of Refrigeration 2023? Share it with the international refrigeration community.
Encyclopedia of Refrigeration
8 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...
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 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...
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...
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...
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...
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...
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
5 results
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...
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Other event
14th International Conference on Compressors and their Systems
September 08, 2025 - September 10, 2025
London, United Kingdom
On September 8-10, 2025, the 13th 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...
1st IIR International Conference on Refrigeration Adapting to Rising Temperatures
August 10, 2025 - August 13, 2025
Manchester, United Kingdom
The International Institute of Refrigeration is proud to announce that the first IIR International Conference on Refrigeration Adapting to Rising Temperatures will take place in Manchester, UK on 10-13 August 2025.
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,...
9th IIR Conference on Sustainability and the Cold Chain
April 12, 2026 - April 14, 2026
Istanbul, Türkiye (Republic)
Submit your abstract now! The 9th IIR Conference on Sustainability and the Cold Chain (ICCC 2026)...
