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Design considerations in cold climates.
Cold climate HVAC solution.
IIR document
How vulnerable are UK food cold chains to climate change?
Improving cold climate air-source heat pump performance with refrigerant mixtures.
Cold climate integrated heat pump.
Development of a cold climate heat pump using two-stage compression.
A saturation heat pump system for cold climate conditions.
Performance analysis of liquid flooded compression with regeneration for cold climate heat pumps
Dry indoor climate – Why and how to prepare for the next cold season?
Experimental investigation on heating performance of a cold climate thermoelectric-assisted heat pump.
Energy consumption of cold climate heat pumps in different climates. Comparison of single-stage and two-stage systems.
Isentropic mixtures and their application in heat pumps in cold climate region.
A review of recent residential heat pump systems and applications in cold climates.
Performance evaluation of propane heat pump system for electric vehicle in cold climate.
Cost reduction of heat pump water heating in cold climates for low to moderate income families.
Refrigeration sector monitoring
125 results
A promising solar heat pump system for cold climates
A simulation of a novel solar-assisted ground source heat pump system shows promising results for improved energy efficiency and reduced soil freezing in cold climates.
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...
Cryochemistry: chemical reactions accelerated by freezing
Surprisingly, some chemical reactions can be accelerated by freezing. The possible applications of studying such cryoreactions include the food and pharmaceutical cold chain, as well...
Mini containers, an energy-efficient solution for small farmers?
To benefit small growers, a team of researchers investigated the concept of mini containers that would consume less energy and produce fewer GHG emissions than conventional full-size...
COP 27 at Sharm Al Sheikh
The IIR at the COP 27: side event was organised by the IIR with the European Heat Pump Association (EHPA). Didier Coulomb gave a statement at the high-level session.
Evaporative cooling without adding humidity
Scientists at the University of Harvard have designed a prototype evaporative cooling system called Cold-SNAP that effectively cools air at low cost for both dry and humid climates.
Evaporative cooling: continuation of the Cold-Snap project at Harvard University
Tests show that Cold-Snap evaporative cooling technology would be effective in humid climates, while limiting water consumption.
GL2012 highlights: latent cold thermal storage: the energetic benefits
In response to German climate protection goals, requiring 80-95 % cuts in CO2 emissions before 2050, Michael Kauffeld presented a paper on “The Energetic Benefit of Latent Cold Thermal Energy Storage” at the 10th IIR Gustav Lorentzen Conference on...
Green roofs can reduce cooling demand in warm climate zones
The impact of green roofs on building energy performance was assessed in 15 climate zones. In most regions, the reduction in energy demand for cooling was greater than for...
Natural refrigerants power the transition to climate-friendly transport refrigeration
Refrigerated transport is essential to global food and pharmaceutical supply chains – but it’s also a hidden source of greenhouse gas emissions. As climate targets tighten and refrigerants face regulatory...
The Cold Hard Facts 2022 report presents the main figures for refrigeration in Australia
According to the latest Cold Hard Facts 2022 report published earlier this year, transition to low GWP refrigerants slowed down in Australia in 2021, and equipment sales increased...
Heat pumps a promising way to extend electric vehicles' range
Two articles recently published in the International Journal of Refrigeration highlight heat pumps – especially with integrated desiccant – as a promising way to extend the range of electric vehicles.
R&D
The US Department of Energy's National Renewable Energy Laboratory (NREL) has developed a new air-conditioning system combining membranes, evaporative coolers and desiccants into a single device with the objective to suit to all climates,...
Towards a sustainable seafood cold chain
Several FAO (UN’s Food and Agriculture Organisation) reports present the figures and challenges of the seafood cold chain.
The Australian refrigeration sector: decreased emissions, transition to natural refrigerants and a growing workforce
Released in 2024, the Cold Hard Facts 4 report identifies key developments and emerging trends in the Australian refrigeration and air conditioning industry between 2016 and...
IIR news
107 results
Engineering internship: Climate impact modelling for global food cold chains
The IIR has developed an innovative model to calculate CO2 emissions for each stage of the cold chain and for all countries in the world. The candidate will work on improving this model based on updated data...
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.
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.
Strengthening cold chain technologies in hot climates: IIR and UNEP lead the conversation at MOP37
Nairobi, 3 November 2025 — At the 37th Meeting of the Parties to the Montreal Protocol (MOP37), UNEP OzonAction and the International Institute of Refrigeration (IIR) hosted a dynamic side event focused on strengthening sustainable...
CRH 2015 - China Refrigeration 2015
Continued focus on providing persistent improvement and innovation in the HVAC&R industry. Highlights included a Demonstration Pavilion for cold chain solutions, Ozone2Climate Roadshow & Roundtable, and a side-event covering EU F-gas...
The “Projects on clean and efficient refrigeration solutions for food and healthcare sectors in developing countries” workshop at ICCC 2022
An IIR workshop which has gathered the current projects in developing countries that will help to raise awareness among the industry, farmers, policymakers, and consumers… on the importance of adopting a...
Save the Date – The 7th IIR Conference on Sustainability and the Cold Chain will take place in April 2022
This international event will focus on sharing expertise on the cold chain with developing countries to address key UN sustainable development goals related to hunger, health, energy, education,...
World Bank project in Bangladesh
The IIR has just signed an agreement with the World Bank to develop a cold chain, as sustainable as possible of course, in Bangladesh, in partnership with British and Bangladeshi universities.
World Science Day: IIR reaffirms the role of refrigeration for sustainable development
This 10 November 2025, IIR joins in the celebration of World Science Day, aligning with this year’s theme of “the science we need for 2050” by highlighting the importance of refrigeration for economic...
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...
Statement given by Didier Coulomb, Director General of the IIR, during MOP 34
Statement Given by the Director General of the International Institute of Refrigeration (IIR) during the 34th Meeting of the Parties to the Montreal Protocol (MOP-34) in Montréal, Canada (octobre 31 –...
Statement given by Didier Coulomb, Director General of the IIR, during COP 27
Statement Given by the Director General of the International Institute of Refrigeration (IIR) during the 27th Conference of the United Nations Framework Convention on Climate Change (COP 27) in Charm...
COP 28: the annual conference on climate change puts refrigeration in the spotlight!
Refrigeration will be one of the priorities at the next United Nations Conference of the Parties on climate change. It will be held in Dubai from 30 November to 12 December 2023.
See what's in our events calendar for 2015 !
The IIR’s calendar in 2015 shows a promising choice of events covering cutting-edge refrigeration themes from refrigerants to energy issues; from cold chain sustainability to new refrigeration technologies.
Job Opening - Senior Cooling Project Manager
The IIR is seeking a highly experienced and strategic Senior Cooling Project Manager to lead and coordinate international development projects focused on sustainable cooling and refrigeration, emissions...
Encyclopedia of Refrigeration
3 results
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...
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...
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...
