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IIR document
Characterisation of the behaviour of a CO2 water/water heat pump for hot water generation.
Experimental and numerical study of a CO2 water-to-water heat pump for hot water generation.
Numerical assessment of the use of a dedicated mechanical subcooling system during hot water generation in a water to water transcritical CO2 heat pump.
A propane water-to-water heat pump booster for sanitary hot water production: seasonal performance analysis of a new solution optimizing COP.
Experimental study of a R407C liquid-to-water heat pump with domestic hot water production.
Experimental analysis of the use of a subcooler coupled with the evaporator in a water to water CO2 heat pump for hot water generation.
Hot water heat pump with low-charge propane refrigerant.
Comparison of a single stage and a multistage latent heat storage for domestic hot water delivery.
Performance Characteristics of Cascade Multi-Functional Heat Pump in Cooling-Hot Water Mode With Variation in Secondary Fluid Temperature Conditions.
Numerical comparison of several control strategies for domestic hot water generation in a CO2 heat pump water heater.
Performance of ground source heat pump that uses direct expansion method for supplying hot water.
Design of a grey water heat recovery system in order to satisfy the domestic hot water demand of a block of dwellings.
Experimental measurements and techno-economic analysis of a compact DHW heat pump powered by photovoltaic energy.
Experimental Validation and Numerical Simulation of a Hybrid Sensible-Latent Thermal Energy Storage for Hot Water Provision on Ships.
Refrigeration sector monitoring
46 results
Fusion of a boiler and a heat pump into one new system, thanks to thermal compression
Boostheat company has developed a new technology that is claimed to lead to a new generation of very efficient and renewable heating, hot water and cooling systems.
Heat pump sales grew in Europe in 2020
According to the latest market report by European Heat Pump Association (EHPA), heat pump sales grew by +7.4% in 2020, offering benefits both in terms of greenhouse gas emission...
A propane heat pump with compact bionic heat exchangers
In Germany, Fraunhofer has developed a propane heat pump using compact finned heat exchangers with distribution boxes whose structure is inspired by nature.
French heat pump market situation
The total market showed an increase of sales in 2014 with a little over 192 967 units sold. This is a rise of 27% compared to 2013.
Recent geothermal energy-based district cooling projects
In December 2023, district cooling projects using geothermal energy were launched in France and the United Arab Emirates.
Overview of data center cooling technologies
The very huge growth in Internet traffic requires the continued development of new energy-efficient data center cooling technologies, based primarily on liquid...
Meeting the cooling and freshwater needs of arid countries
In a recent review article, the authors summarised research efforts in meeting cooling and freshwater demands in arid and hot climates, using available solar...
Chilled water cooling pads to reduce heat stress in pigs
A team of scientists at Purdue university in the USA has developed cooling pads to keep pigs cool and reduce the impact of heat stress on milk output and piglet...
Initiatives to promote refrigeration technologies in the developing world
Focus on some initiatives to facilitate access to eco-friendly refrigeration technologies in hot countries.
IIR GL2020 conference: Range of CO2 applications
Almost half of the presentations at the IIR Gustav Lorentzen conference in Kyoto focused on CO2, in commercial refrigeration systems but also in many other applications. Overview of these...
China: record temperatures in Beijing increase cooling demand
In June 2023, Beijing recorded its hottest temperatures in 60 years, affecting electricity and cooling demand.
France: a patented air conditioning system without electricity (in French).
Researchers have patented a cooling system for a house using the principles of heat exchange.
Solar cooling on a district-scale in the South of France
The installation could cut CO2 production by 40 tons annually!
Norwegian lobster farm uses waste heat from datacentre
An innovative lobster farm will use waste heat from a Norwegian datacentre for water temperature regulation.
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.
IIR news
7 results
Heat pumps, the central theme of the recent IIR Congress
An overview of the research carried out in the field of heat pumps, with the aim of achieving greater flexibility and increased energy efficiency, in particular through to the use of thermal energy...
IIR Working Group on the Cold Chain in Warm Countries appoints a new chairperson
Newly appointed chairperson, Halima Thraya, will oversee and coordinate the various efforts and projects carried out by the Working Group.
IIR member news: Excess heat is the largest untapped energy source
In a whitepaper, IIR Benefactor member Danfoss highlights the vast untapped potential of excess heat as a source of energy.
New IIR Informatory Note on evaporative cooling
The latest IIR Informatory Note highlights that evaporative cooling is an energy-efficient technology that has many applications in air conditioning but also in short-term food storage.
New EU funded project began on October 1st, 2021: “SophiA - Sustainable off-grid solutions for pharmacies and hospitals in Africa”
With a budget of 8 million euros over four years, SophiA will develop containerized solutions for hospitals using natural refrigerants, solar thermal and photovoltaics to enable more and more African people to...
IC2015 Workshops: An opportunity to join, share and build together
ICR2015: A chance to actively participate in the innovation of refrigeration.
IIR member news: A new BSRIA study on the global compressor market
A recent study by BSRIA shows that sales of refrigeration compressors in 2022 are expected to reach 502 million units with a value of USD 48.6 billion, up 15% year-on-year.
Encyclopedia of Refrigeration
2 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.
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...