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A luminance-based approach for inferring personal daylight preferences using a new composite similarity index.
IIR document
Accurate determination of viscosity and surface tension of binary mixtures of R1234YF and R32 under saturated conditions by surface light scattering.
Enabling human-centered daylighting operation using non-intrusive luminance monitoring and deep learning.
Thermal cooling multichip ultra high power LED using refrigeration cycle system.
Investigating time-based glare allowance based on realistic short time duration.
A new control framework for the visual environment based on low-cost HDR luminance acquisition.
Effect of energy-saving lamps on air-conditioning load business-related building.
Optical refrigeration on CdSe/CdS quantum dots.
Mutual diffusivities of difluoromethane and 2,3,3,3-tetrafluoropropylene dissolved in polyalkylene glycol lubricant.
Development of a new framework for daylighting simulation with dynamic shading devices.
Daylight glare evaluation when the sun is within the field of view through window shades.
Simulation-based energy and daylighting impact assessment of integrated shading devices and lighting controls in commercial buildings.
Thermal diffusivity measurements of R1234yf and R1234ze(E) under saturation conditions using dynamic light scattering method.
Light Gradient Boosting Machine (LightGBM) to forecasting data and assisting the defrosting strategy design of refrigerators.
Saturated liquid kinematic viscosity, surface tension and thermal diffusivity of two low-GWP refrigerants 3,3,3-trifluoropropene (R1243zf) and trans-1-chloro-3,3,3-trifluoro-1-propene (R1233zd(E)) by light scattering method.
Refrigeration sector monitoring
25 results
New IIR figures highlight the role of the refrigeration sector
On the occasion of the upcoming publication of two new Informatory Notes, the IIR has established new figures illustrating the importance of the refrigeration sector.
New study highlights the environmental impact of cold chains in agrifood systems
Researchers highlight the urgent need to address emissions from cold chains to ensure a sustainable future for agrifood system.
New whitepaper highlights hybrid heat pump “missed opportunity” in the UK
A new report highlights the key role hybrid heat pumps could play in the decarbonisation of the heating sector in the UK, urging for better policies.
Lighting systems for cold stores
Various types of lighting exist for below 0°C temperature cold stores including mercury vapor (MV) lamps, high pressure sodium (HPS) and light-emitting diodes (LED).
Do aliens use CFCs?
What if the search for extra-terrestrial life took a new turn? A grant recently awarded to a team of scientists will finance research for "technosignatures", which would include CFCs.
Cool like a butterfly wing
New study demonstrates that butterfly wings contain a network of living cells with specific thermodynamic and thermoregulatory properties. Butterfly wings cool down as a result of low solar absorption combined with efficient radiative heat...
Radiative cooling: protecting ice from melting under sunlight
Researchers have developed a biodegradable film made of cellulose acetate which, thanks to its radiative cooling properties, effectively protects ice subjected to solar radiation from melting, with possible...
Innovative material for passive cooling and natural lighting
Researchers at the Karlsruhe Institute of Technology have developed a polymer-based material that is more transparent to light than regular glass and maintains a comfortable indoor...
Unprecedented images from the centre of our galaxy
The James Webb Space Telescope shows images of the centre of the Milky Way, thanks to its state-of-the-art infrared detectors, which need to be cryogenically cooled to operate...
Radiative cooling coatings that can adapt to the seasons
A novel material can be used as a coating on building’s rooftops or windows to provide radiative cooling in the summer without overcooling in the colder months.
Quantum refrigerators: research is making progress
Two recent studies illustrate the progress of research on quantum refrigerators. Cooling applications for microelectronic compounds could be considered.
Radiative cooling: smart materials to switch from heating to cooling
Researchers have developed a radiative thermal management device, composed of several layers of reflective/absorbent materials, capable of switching between heating and cooling...
8th Issue of the OzonAction Bulletin
The latest OzonAction bulletin explores the impacts of the Montreal Protocol and its Kigali Amendment on the ozone layer, climate, and public health.
White paint reduces air conditioning demand
A team of researchers has developed a radiative cooling paint that keeps surfaces more than 1.7 °C cooler than their ambient surroundings (at noon).
Producing ammonia using less energy
Scientists at the Tokyo Institute of Technology have developed an improved catalyst facilitating the synthesis of ammonia at merely 50°C (when conventional techniques require temperatures of 450°C).
IIR news
39 results
IIR at SIFA Expo 2024
On 19-21 November, IIR participated in SIFA Expo 2024, the interprofessional trade show on refrigeration and its applications in Lyon, France, a premier event for commercial and industrial refrigeration, cold...
Press release: Strengthening Cold Chains: UNEP and IIR Release Three Technology Briefs and Announce Webinar Series
Nairobi, 3 November 2025 — The International Institute of Refrigeration (IIR) and the United Nations Environment Programme (UNEP) OzonAction are pleased to announce the release of three new Cold Chain Technology Briefs that address...
SophiA Final Consortium Event: The IIR’s Strong Involvement in Sustainable Refrigeration Solutions for Africa
The Final Consortium Meeting of the SophiA Project took place in Karlsruhe, Germany, on 17–18 September 2025, co-organised by the International Institute of Refrigeration (IIR) and Hochschule Karlsruhe...
IIR wins ECREEE Award for solar cooling and heating efforts in Africa with SophiA
The ECOWAS Sustainable Energy Forum took place in Abidjan, Côte d’Ivoire on November 28-29. The IIR organised a SophiA workshop and was honoured with an ECREEE Award for its outstanding contribution to...
IIR Conference overview: 5th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants - TPTPR2017
With over 150 participants from 12 countries, the 5th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants featured 85 technical presentations, including six plenary keynote lectures.
Alex Cohr Pachai's Presentation at IOR TechTalk in London
We are excited to announce that Alex Cohr Pachai, a distinguished expert in refrigeration technology, will be leading the next IOR TechTalk.
ATMOsphere MAC Summit 2024 x TU Berlin: natural refrigerants for mobile air conditioning and heat pumps
On 12 and 13 September 2024, the ATMOsphere MAC Summit 2024 was held in Berlin, co-organised with the Technical University of Berlin (TU Berlin).
Two ENOUGH events not to be missed in May!
The ENOUGH project is hosting two major events in May 2025 – mark your calendar!
IIR brings its expertise to SophiA’s training in Cameroon
The second capacity building session for SophiA trainers took place in Yaoundé, Cameroon, from January 20 to 24, 2025. The online presentation given by IIR on natural refrigerants in...
See you at the 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants 2024
The next IIR-Gustav Lorentzen conference will take place from 11 to 14 August 2024 at the University of Maryland - College Park (Maryland), USA.
IIR's 2024 activity report is now available
We are pleased to announce that the International Institute of Refrigeration's activity report for 2024 is now available. The report offers a comprehensive overview of our activities and achievements over the...
26th International Congress of Refrigeration: A Remarkable Success
The 26th International Congress of Refrigeration (ICR), held on August 21-25, 2023, left an indelible mark on the world of refrigeration, serving as a resounding success with the active participation...
Ozone to Cool Zone: IIR Workshops at COP 28
Join the five IIR workshops at COP28 set to highlight innovative refrigeration solutions for a sustainable future.
Refrigeration Safety Working Group Congress meeting
Refrigeration Safety Working Group Congress meeting ICR 2019 offers opportunities for industry experts to meet and discuss improvements in refrigeration safety. With the upcoming...
Your invitation: United Nations Food Systems Summit 2021
The UN has invited the Director General of the IIR to present key data from two of its Informatory Notes during the Food Systems Summit 2021 to take place on September 20.
Encyclopedia of Refrigeration
1 result
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...
