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Gas pulsation control using a shunt pulsation trap.
Gas pulsation control by a shunt pulsation trap with perforated tubes and an optional absorptive silencer.
IIR document
The application of nozzles for the attenuation of volumetric compressor pressure pulsation.
Experimental study of lubricating oil impact on pressure pulsation for twin-screw refrigeration compressor.
Analysis and control of gas pulsation in the multi-unit compressor system.
Pressure pulsation in the reciprocating compressor with stepless capacity regulation.
Pressure pulsations passive damping in compressors manifolds: experimental and numerical approach development
Combination study of operation characteristics and heat transfer mechanism for pulsating heat pipe.
Theoretical analysis of noise and vibration generated by gas pressure pulsation in hermetic compressors.
Heat transfer performance of pulsating heat pipe with water-ethanol mixed working fluid.
Innovative hybrid device for the simultaneous damping of pressure pulsations and vibrations in positive displacement compressor manifolds.
Numercial simulation of the inner flow field and gas pulsation in twin tooth rotary compressor.
Performance investigation of a pressure pulsation dampener applied in the discharge chamber of a twin screw refrigeration compressor.
Evaluation of the effect of pressure pulsation on injection flow rate in the vapor injection cycle.
Effect of pressure pulsation on COP in two-stage-compression vapor-injection cycle.
Refrigeration sector monitoring
106 results
Populations at risk due to lack of cooling
The report Chilling Prospects highlights the growing and unprecedented risks for the 1.1 billion people who cannot access cooling nowadays.
Noise reduction strategies for screw compressors
The operating noise of twin-screw compressors is an important issue that may limit their scope of application. Two recent IJR papers suggest several noise reduction methods and analyse their...
Summaries from two papers of the IIR co-sponsored International Conference on Compressors
Reduction of refrigeration compressors noise was an important topic addressed during the IIR-co-sponsored International Conference on Compressors (ICCR) in Xi’an, China.
Impact of indoor heat on mortality in the elderly
A team of researchers has developed a model to assess the impact of indoor heat on the health status of populations, and more specifically on the mortality of people over 65 years of age.
Refrigerated warehouse capacity and urban development
Among other data, the 2012 IARW Global Cold Storage Capacity Report focuses on the relationship between refrigerated warehouse capacities and urban population levels.
Addressing gender and regional disparities in access to cooling
The annual Chilling Prospects report estimates that 1.12 billion poor people in rural and urban areas are at high risk due to a lack of access to cooling.
More than one billion people are at high risk due to a lack of access to cooling
The annual Chilling Prospects report estimates that 355 million people living in poor rural areas and 732 million people living in poor urban areas are at risk due to a lack of access to cooling worldwide....
Challenges related to the adoption of air conditioning in emerging economies by 2040
The authors of a recent article modelled the adoption of air conditioning by 2040 in four emerging economies: Brazil, India, Indonesia, and Mexico. The adoption of AC could increase between two- to sixteen-fold,...
Latest IPCC report predicts an increased risk of heatwaves
The IPCC report published in February 2022 highlights several risks posed by rising temperatures, such as increased heat waves and greater energy demand for space...
European minisplits: market overview
A recent analysis of the European minisplit market carried out by BSRIA forecasts steady growth overall in the next few years. Thanks to data collected from nine of the largest producers in Europe, and further interviews among other market to...
US increasing food waste
Food waste contributes to excess consumption of freshwater and fossil fuels which, along with methane and CO2 emissions from decomposing food, thus impact global climate change. In a recent paper published in the Public Library of Science ONE,...
Sustainable air-conditioning solutions in EU buildings
In a recent briefing note, the European Environment Agency (EEA) discusses sustainable solutions to the growing need for cooling in Europe.
Cold storage: sustainable solutions for developing countries with hot climates
Two papers from the recent IIR Congress illustrate the importance of developing the cold chain in developing countries with warm climates. In particular, in India, environmentally-friendly technical solutions...
The fast-growing frozen food market
The global frozen food market, estimated at USD 220 billion, is expected to grow at an average annual rate of 5.1% over the next 5 years.
India is in urgent need of affordable, energy-efficient air-conditioning
With energy demand for cooling in India expected to increase eightfold by 2038, a recent study by the Council on Energy, Environment and Water (CEEW) discusses the country's...
IIR news
38 results
Member news: Ultra-low temperatures. NIST creates a more efficient pulse-tube refrigerator prototype
American researchers have created a prototype pulse-tube refrigerator that significantly reduces the time and energy required to reach temperatures close to absolute zero: an exciting advance for the quantum...
Invitation: IIR Seminar on the "Logistics For Transport Of Foodstuffs Under Controlled Temperatures In Hot Countries"
The IIR is delighted to invite you to the IIR Seminar on the "Logistics For Transport Of Foodstuffs Under Controlled Temperatures In Hot Countries” and an IIR Working Group meeting on The Cold Chain in Hot Countries.
1st IIR-UNEP Joint Experts’ Round-Table on Cold Chain Management in Hot Climates
In collaboration with the United Nations Environment Programme (UNEP), the IIR is proud to announce the 1st IIR-UNEP Joint Experts’ Round-Table on Cold Chain Management in Hot Climates.
IIR Seminar in Tunis brings to the forefront the social and economic strategic importance of the cold chain
Recognising the social and economic importance of this issue on a global scale, the IIR organised a seminar on the Logistics For Transport Of Foodstuffs Under Controlled Temperatures In Hot Countries on October 25, 2016 in Tunis (Tunisia),...
The IIR with the World Bank in West Bengal
The IIR is a key partner in the World Bank’s project on the Inland Waterways Transport (IWT) integration into the cold chain in West Bengal
Statement given by Didier Coulomb, Director General of the IIR, during COP 26
Statement Given by the Director General of the International Institute of Refrigeration (IIR) during the 26th Conference of the United Nations Framework Convention on Climate Change (COP 26) in...
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...
Conference report: An important event in Saint Petersburg
The IIR-co-sponsored International Conference on the "Conservation of Genetic Resources", was held in Saint Petersburg at the prestigious Institute of Cytology (Russian Academy of Sciences), on October 19-22, 2004. There were 120 participants from...
ICR2023: ENOUGH, INDEE+ and SophiA conference papers are now online!
Download papers presented at ICR2023.
A new technical guide on cold rooms
On the occasion of COP 28, the IIR and Efficiency for Access, with the contribution of ESMAP, have published a new guide. It aims to provide accessible and practical guidance to enable developers, owners,...
ACES Inaugural Conference: “The Hot Reality: Living in a +50°C World”
The Africa Centre of Excellence for Sustainable Cooling and Cold Chain (ACES) hosted a series of events from 17 to 19 October 2023, at ACES headquarters at Rubirizi Campus in Kigali, Rwanda.
The IIR website gets a makeover
After three years of existence, the home page of the IIR website has been modernised and its content made more visible. IIR projects are given a special place of honour, with detailed pages dedicated to each of...
Cooling Keeps Food Fresh : Global Campaign Announced for World Refrigeration Day, June 26
Since 2019, June 26 celebrates the World Refrigeration Day. With increasing global stakes at hand over the past years, refrigeration took a leading role at the heart of international...
Event update: 1st IIR-UNEP Joint Experts’ Round-Table on Cold Chain Management in Hot Climates
The IIR and UNEP organise a Joint Experts’ Round-Table on Cold Chain Management in Hot Climates.
15th IIR-Gustav Lorentzen Conference, June 13-15, 2022: the detailed programme is now available!
The detailed program of the 15th IIR Gustav Lorentzen Conference on Natural Refrigerants is now available online.
Encyclopedia of Refrigeration
1 result
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...
