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Assessing the potential of air-source heat pumps in the Canadian residential sector.
IIR document
Experimental and numerical study on heat transfer of gas cooler under the optimal discharge pressure.
Étude numérique et expérimentale du transfert de chaleur d’un refroidisseur de gaz sous pression de refoulement optimale.
Réalisations exemplaires de pompes à chaleur dans le tertiaire.
Outstanding heat pump achievements in the services sector.
Réalisation exemplaires de pompes à chaleur dans le tertiaire.
Une pompe à chaleur au CO2 prometteuse.
A promising CO2 heat pump.
Pompes à chaleur transcritiques au R32 pour des applications industrielles.
R32 transcritical heat pumps for industrial applications.
Numerical Investigation on Thermal–Hydraulic Performance of a Printed Circuit Heat Exchanger for Liquid Air Energy Storage System.
Étude numérique des performances thermo-hydrauliques d'un échangeur de chaleur à circuit imprimé pour un système de stockage d'énergie à air liquide.
Enquête des réseaux de chaleur et froid. Édition 2024.
2024 survey on heating and cooling networks.
Comprehensive Comparison of Hybrid Cooling of Thermal Power Generation with Airside Serial and Parallel Heat Exchange.
Comparaison détaillée du refroidissement hybride de la production d'énergie thermique avec échange de chaleur en série et en parallèle côté air.
Une nouvelle approche d'optimisation de pompe à chaleur tenant compte du couplage entre les réservoirs thermiques et le cycle.
Mauvais paramétrage d'une pompe à chaleur air/eau double service : quel impact sur le confort et la consommation électrique ?
Air-to-water dual operation heat pump wrongly set up: what are the effects on comfort and energy consumption?
Couplage cristallisation-foisonnement au sein d’un échangeur de chaleur à surface raclée lors de la production de sorbet.
Coupling crystallization-foaming within a scraped surface heat exchanger during sorbet production.
Recommended by the IIR
Échangeurs de chaleur, cours et exercices corrigés.
Control of Heat Transfer in a Vertical Ground Heat Exchanger for a Geothermal Heat Pump System.
Caractérisation aéraulique et thermique au sein d'un empilement de produits dégageant de la chaleur : application au cas des palettes de fromage
Characterization of heat transfer and airflow within a pallet of heat-generating product : applied to cheese pallets.
Refrigeration sector monitoring
591 results
Le marché 2015 des pompes à chaleur en France
According to the AFPAC (French Association for Heat Pumps), 399,657 monosplit and multisplit air-to-air heat pumps were sold in 2015 in France.
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.
UK: a dual purpose heat pump chiller with heat recovery
A Salisbury District Hospital’s unit has recently been equipped with an innovative high efficiency heat pump chiller.
Europe 2025 heatwaves: demand for AC surges as heat-related deaths triple
Recent analyses from the World Meteorological Organization, the World Resources Institute and the Imperial College London take stock of this summer’s heatwaves in Europe.
The global heat pumps market
The global heat pumps market is estimated at 58.3 million units in 2013 and forecasted to grow at a 2014-2020 Compound Annual Growth Rate (CAGR) of 10.6%.
European heat pump market
The preliminary statistics on heat pump use in Europe as presented by European Heat Pump Association (EHPA) show that at least 6.8million heat pumps have been installed between 2005 and 2013, in 21 European markets.
In the European market, heat pump sales grew slightly by 3.49% in 2014, leading to a total of 796 746 units sold across Europe.
European heat pump market.
According to European Heat Pump Association (EHPA), European heat pump market grew for the third consecutive year in 2015.
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.
Heat pump sales in France
2013 Air-air Heat pumps (HPs) sales show significant increase
Sweden heat pump market situation
In Sweden, there were over 400,000 heat pumps in operation for space heating in 2014.
Belgium heat pump market situation
In Belgium, there were over 40,000 heat pumps in operation for space or water heating.
Efficiency of ground source heat pump systems
Ground source heat pumps (GHSP) have been reported to be more efficient than more widespread air source heat pumps despite higher installation costs. A recent article has reviewed parameters impacting the energy...
Heat pumps: record sales in 2022
The European heat pump market continues to do very well, according to EHPA. Three million units were sold in 2022, a 38% jump from 2021.
Novel anti-frosting heat pump technology
A review article published in Energies, presents advancements of heat-source tower heat pump systems (HSTHPSs) in China, including operating principle, heat-source tower (HST) structure, heat and mass transfer...
IIR news
361 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...
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.
IIR’s historical commitment to heat pump excellence and sustainable solutions
IIR is committed to supporting, informing and connecting scientists, policymakers, manufacturers and end-users of heat pump technologies through reference publications and dedicated...
Activities of the IIR’s Commission E2 “Heat Pumps, Energy Recovery”
Presentation of IIR Commission E2 activities by Per Lundqvist, President of Commission E2
Member news: Carrier launches a high-temperature heat pump with R290
Carrier introduces its first high-temperature air source heat pump designed for commercial applications, using R290 to enhance efficiency.
Call for papers: 2014 International Sorption Heat Pump Conference
ISHPC 2014 extends abstract deadline until September 13, 2013
Hot off the press: Handbook on Indirect Refrigeration and Heat Pump Systems
Be the first to read the newly published IIR Handbook on Indirect Refrigeration and Heat Pump Systems.
Commission E2: at the forefront of heat pumps and energy recovery
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!
IIR Member news: New Mitsubishi Electric Ecodan R290 heat pumps for residential use
The new Mitsubishi Electric Ecodan R290 heat pumps provide higher capacities for residential heating, using propane as a low-GWP refrigerant and operating efficiently in low temperatures.
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.
IIR Webinar – Domestic hydrocarbon heat pumps, key to a decarbonised future
As the world accelerates towards decarbonisation, heat pumps are emerging as a global solution for cleaner, more efficient residential cooling and heating.
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 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.
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...
Encyclopedia of Refrigeration
8 results
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...
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 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...
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...
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...
Global warming potential (GWP) of HFC refrigerants
Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...
Events
2 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,...
Find out more
IIR event
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...
