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IIR document
Experimental analysis of freezing process of stationary food samples inside a hydrofluidisation freezing chamber.
Industrial cold storage of fruit and berries – specific energy use and operational processes.
Postharvest handling of plum cv. Santa Rosa.
1-methylcyclopropene delays ripening process of 'Black Diamond' plum.
INTERNAL BREAKDOWN IN PLUM: PATHOGENESIS AND TREATMENT.
Ethylene production and storage potential in 'Cacanska Najbolja' plums.
Use of calcium treatment to improve storage possibility of plum fruits.
Heat treatment as a mean to improve plum storability and its effect on polyamine metabolism.
1-methylcyclopropene (1-MCP) increased storability in plum (Prunus salicina Lindl. cv. Golden Japan).
La prune TC Sun (cov) : récolte et conservation en étroite relation.
TC Sun (cov) plum: the close relation between harvest and storage.
Effect of ripeness at harvest on response of plums to treatment with 1-methylcyclopropene.
Improvement of storability and shelf-life of 'Blackamber' plums treated with 1-methylcyclopropene.
Artificial cuts of plums as a method to improve efficiency of drying and storage processes.
Wplyw przerzedzania zawiazków i modyfikacji skladu atmosfery w czasie przechowywania na produkcje etylenu i trwalosc sliwek po zbiorze.
Ethylene production and storability of plums picked from non-thinned and hand-thinned trees and the effect of CO2 accumulated in tightly closed jars on those two physiological processes during storage of plums at -0.5°C.
Evaluation of the effect of different modified atmosphere packaging box liners on the quality and shelf life of 'Friar' plums.
Refrigeration sector monitoring
435 results
Cryogenic applications: Spar Netherlands is implementing CO2 refrigerated transport units
The contract was awarded following a successful testing period during which Thermo Kingfs innovative CryoTech CO2 cooling units were tested for operational and environmental performance. Spar has already begun using the innovative technology and...
2015 European heat pump market by applications and by sales volume
These figures are extracted from BSRIA slides presented during Chillventa 2016.
Creation of a cold-chain management degree
AgroParisTech, a French Institute of life and environmental sciences and industries, has just set up, in partnership with Cemafroid, a refrigeration transport testing organization based near Paris, a post-graduate Advanced Studies Certificate...
2015 European heat pump market by output
Must read in IJR: Overview of cold storage capacity in Uganda
The cold storage capacity in Uganda was estimated at 4.5 m3 per 1,000 inhabitants in 2023, according to a recent survey on existing cold storage facilities for bulk handling of perishable food...
Brazil: 94.5% employability rate for trained professionals in the refrigeration sector
The refrigeration course offered by the SENAI, the National Service of Industrial Learning in Brazil, has a 94.5% employability rate for its graduates.
Use of all-aluminum coils increasing
All-aluminum heat exchanger coils called microchannel coils have been used in the automotive industry for over 20 years, but the technology – which uses an all-aluminium brazed fin construction – has been applied to the HVAC&R industry only...
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.
Solar cooling implemented in Jordan
Four sites in Jordan are now equipped with solar absorption chillers.
New standards for “intelligent” ACs implemented in China
China implements new standard to officially define and set technological requirements for intelligent ACs. Additionally, a Chinese air-conditioning manufacturer is the first company in China to achieve a global...
China implements HFC import and export licensing system
As of 1 November 2021, China has officially begun implementing its HFC import and export licensing system, in accordance with the Kigali Amendment.
The Indian government implements a default temperature setting on room air conditioners
The Indian Government has imposed a default temperature setting of 24 °C on room air conditioners with effect from January 1, 2020.
IIR Cryogenics 2025 Conference: Implementing the new EU SoHO regulation for tissue cryobanks
P. Mericka et al. highlighted key points to be addressed by establishments during implementation of the new 2024 EU Regulation on standards of quality and safety for substances of human origin (SoHO) intended...
Illegal HFC trade: EIA calls for the implementation of a fully functional licensing system
EIA’s analysis of 2018 customs data suggests that as much as 16.3 million tonnes of CO2 equivalent of bulk HFCs were illegally placed on the market in 2018.
A study ranks the investment of the European Union countries to implement the Paris Agreement
An independent study states that only three countries in Europe push in the right direction to comply with the Paris climate agreement.
IIR news
142 results
OEWG36: Tough week of negotiations, no agreement except possible additional meetings
OEWG 36 spent much of its time focusing on moving the discussion on HFCs management forward.
CryoHub to share results of implementation of innovative energy storage technique
Register now for our Webinar on 17th March 2021 to hear from experts on how the CryoHub technology was developed and demonstrated at a refrigerated facility at Frigologix in...
Member news: GEA implements an innovative high-temperature heat pump at a Tiense Suiker production site
GEA has developed a high-temperature industrial heat pump utilising heat recovery, with reduced emissions.
Celebrating Heat Pumps Day with Björn Palm: Scientific Leadership and IIR Engagement
In celebration of Heat Pumps Day, the International Institute of Refrigeration (IIR) is proud to spotlight the work of Professor Björn Palm, a leading figure in the field of thermal systems and energy...
Focus: The International Journal of Refrigeration (IJR)
In 1978 the International Institute of Refrigeration (IIR) launched a new international scientific journal, the IJR. The first volume of the IJR consisted of 4 issues comprising 29 scientific articles in all. Today, we publish 8 issues with an...
IJR Editorial: World Refrigeration Day 2020
Editorial of Didier Coulomb, Director General of the IIR, published in volume 113 of the International...
Activities of the IIR’s Commission E2 “Heat Pumps, Energy Recovery”
Presentation of IIR Commission E2 activities by Per Lundqvist, President of Commission E2
Commission E2: at the forefront of heat pumps and energy recovery
Call for papers: 2014 International Sorption Heat Pump Conference
ISHPC 2014 extends abstract deadline until September 13, 2013
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.
New IIR Informatory Note on The Role of Refrigeration in the Global Economy
In its latest Informatory Note, the IIR highlights the major and growing role of the refrigeration industry in the global economy, particularly in the areas of food, health, energy and the environment. It calls on policy makers to consider this...
IIR publishes a new Technical Brief: Domestic heat pumps using hydrocarbons - Current status and market overview in Europe
At a time when the energy transition is at the top of the global agenda, the IIR is publishing a new Technical Brief on domestic hydrocarbon heat pumps. This strategic document...
The importance of heat pump data for policymaking: Insights from the IEA workshop
On January 23, the IIR participated in the workshop “The importance of heat pump data for policymaking and innovation,” organised by the IEA in Paris.
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.
See you at the 2nd China Heat Pump Conference in 2024
Join this co-sponsored IIR conference on heat pumps in China set to be bigger than the first!
Encyclopedia of Refrigeration
13 results
For IIR members only
Heat pump stock in Europe
This table presents the stock of installed heat pumps, the CO2 emissions avoided and the number of jobs in the heat pump sector in Europe.
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 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...
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...
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...
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...
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...
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...
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.
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...
Events
3 results
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,...
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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...
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...
