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IIR document
Simulation of high temperature heat pump performance.
Structural modeling of HTS tapes and cables.
High-glide refrigerant blends in high-temperature heat pumps: Part 1 – Coefficient of performance.
CFD-based analysis & correlation development for a novel multi-furcating heat exchanger for high temperature, high pressure applications.
Modelling of 3D temperature profiles and pressure drop in concentric three-phase HTS power cables.
Design and optimization of a HTS insert for solenoid magnets.
Explosion characteristics of chlorodifluoromethane and isobutane at high temperature and pressure using a 20-L apparatus.
Development of a compact cryocooler system for high temperature superconductor filter application.
Performance analysis of high-temperature heat pumps with two-phase ejectors.
Experimental investigation on R245fa throttling devices under high temperature.
Development of a high-temperature heat pump up to 140°C.
Thermodynamic properties (Daniel Plot) of lubricant - supercritical CO2 mixtures at high temperatures.
Overview of a newly-installed high-temperature heat pump demonstrator coupled with high-temperature mine thermal energy storage.
High-temperature cooling & low-temperature heating AC system evaluation of energy saving in an office in Tokyo.
High-temperature hydrogenation behaviors and magnetocaloric properties of LaFe11.6Si1.4 compound.
Refrigeration sector monitoring
67 results
High temperature heat pumps to increase energy efficiency of industrial processes
Summary of an article published in the International Journal of Refrigeration.
Purdue conferences highlights: development of high-temperature heat pumps
High-temperature heat pumps are currently subject to intense R&D work, as illustrated by several papers presented at Purdue last year. All Purdue papers can now be downloaded from the Fridoc database.
Road to COP28. Extending the temperature range and application for heat pumps
To promote decarbonation, “high temperature heat pumps should be designed using waste heat and renewables as a driving energy, and environmentally friendly working fluids”, according...
Assessing the market potential of industrial heat pumps in Europe
To address the lack of product development of high temperature heat pumps, a recent article provides manufacturers with an estimate of the industrial heat pump market potential in...
An award-winning industrial dairy using an integrated heat pump system
A recent case study examined the energy consumption and system performance of an innovative integrated heat pump system of a dairy located in Norway. This dairy was among the winning projects of the 2019 “Heat...
ICR2019: overview of current refrigeration research topics (part IV)
Energy storage, desiccant air conditioning, high-temperature heat pumps and ejector technologies were some of the salient topics of the latest IIR Congress. Continuation of the synthesis of key presentations of ICR2019.
24 European countries offer financial support for industrial heat pumps
According to an EHPA report, nearly all European countries offer financial subsidies or support for companies to invest in industrial heat pumps.
Next generation of working pairs in absorption heat pumps
The history and latest developments in working pairs for absorption heat pumps were discussed in a recent review article.
The challenges of thermal management of next-generation electronic equipment
With the increasing integration and miniaturization of electronic devices, the heat flows they generate are constantly increasing. Spray cooling has many advantages in this regard.
Cryogenics 2021 highlights: applications of liquid nitrogen
Cryopreservation of biological materials to favour biodiversity and cooling of superconducting cables to allow transmission of electrical energy with zero resistance are key applications of liquid...
Reducing the environmental impact of ultra-low temperature refrigeration systems
Ultra-low temperature (ULT) refrigeration systems often use very high-GWP HFCs. Yet, ULT systems are excluded from the scope of the regulations aimed at phasing-down HFCs. An IJR paper reviews the most promising...
ICR 2019: an overview of current refrigeration research (part I)
Presentation of the main scientific and technical topics covered in the papers of the 25th IIR International Congress of Refrigeration and summary of some of the 14 keynotes.
Emissions Gap Report 2024: the role of refrigeration in reducing emissions
In its latest report, UNEP outlines the potential for emissions reduction in various sectors, including energy efficiency measured in the buildings sector.
Inauguration of the “Ferments du Futur” Innovation Centre
The “Ferments du Futur” Innovation Centre, dedicated to sustainable food research, was recently opened by INRAE in the Paris-Saclay science and innovation cluster, France.
China issues action plan to advance its heat pump industry
In April 2025, a group of China’s ministries and governmental bodies jointly released an “Action Plan for Promoting High-Quality Development of the Heat Pump Industry”.
IIR news
28 results
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.
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.
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.
Available now: All 474 papers from the Purdue Conferences 2018
Welcoming 800 participants from 30 different countries, the 2018 Purdue Conferences took place at Purdue University in West Lafayette, Indiana, USA, from July 9 to 12, 2018.
Member News: New Intermarché Store in Central Paris Equipped with Epta’s “Integral” Refrigeration Systems
The integration of compact, self-contained refrigeration units demonstrates the adaptability of modern cooling technologies in urban and architecturally sensitive environments.
Commission E2: at the forefront of heat pumps and energy recovery
Activities of the IIR’s Commission E2 “Heat Pumps, Energy Recovery”
World Refrigeration Day 2021 reaches every corner of the globe!
This year, seven organisations partnered with World Refrigeration Day to bring to the limelight the exciting career opportunities in fields relying on refrigeration.
The long awaited ICR2015 is underway!
Held every four years, this year ICR2015 welcomes 1,011 conference delegates from 55 countries, making it a truly global refrigeration event.
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...
Supercooling and superchilling: A solution to increased shelf life and reduced food waste?
If these technologies were combined with perfusion chilling for meat and fish, then additional benefits such as rapid cooling, low weight loss and novel products could result.
IIR reaches a key milestone: over 10 years of conferences now referenced in Web of Science
The IIR is now indexed in Web of Science, with continuous referencing starting from 2014. This highlights the quality of its conferences and its authors’ contributions, while making research more accessible to...
Interview: Director General of the IIR gives an overview of the trends of the refrigeration sector
In the 2018-2019 international special issue of the Industria & Formazione magazine, Director General of the International Institute of Refrigeration, Didier Coulomb, gives an overview of the impact of the refrigeration sector on climate...
Download the latest technical papers from the IIR Cryogenics Conference
Held on 8-11 April this year, the 15th IIR Cryogenics Conference welcomed over 120 guests from more than 22 countries.
ICR 2023: It was nice to meet you at our booth!
The IIR’s booth received a large number of visitors. From regulars who came to say hello to curious onlookers drawn by the extensive display to participants looking for information, exchanges were varied and...
World Refrigeration Day 2021: Join the “Cool Careers” webinars
Save the date! Participate in a World Refrigeration Day webinar in June.
Encyclopedia of Refrigeration
9 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...
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...
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...
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...
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...
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.
Cold storage conditions for fruits and vegetables
Practical recommendations for the cold storage of over 200 cultivars of fruits, vegetables and herbs (storage temperatures, relative humidity, storage time, controlled atmosphere...
