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Smart cooling system of the double loop coolant structure with engine thermal management modeling.
IIR document
Exergy analysis of electrically- and thermally-driven engines to drive heat pumps: An exhaustive comparative study.
Thermal nexus model for the thermal characteristic analysis of an open-type air-cooled induction motor
Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges.
A three-dimensional CFD simulation study to reduce heat stress in ships.
Ammonia as natural refrigerant in electrically and thermally driven engines for heat pumps.
Study of different cooling structures on the thermal status of an Internal Combustion Engine.
An empirical model for a CO2 thermal compressor based on experimental data.
Thermodynamic analysis of an absorption refrigeration system used to cool down the intake air in an Internal Combustion Engine.
Modeling and simulation of a thermomagnetic reciprocating engine by gravity.
Field testing of a transcritical organic Rankine cycle (ORC) engine coupled with concentrating photovoltaic thermal collectors.
Thermal performance of a diffusion absorption refrigeration system driven by waste heat from diesel engine exhaust gases.
Thermal and economic analysis of an energy system of an ORC coupled with vehicle air conditioning.
Effect of hydro-thermal behavior on the frost heave of a saturated silty clay under different applied pressures.
Extending the autonomy time of an icelined solar powered vaccine cooler.
Refrigeration sector monitoring
56 results
A review of current status of free cooling in data centres
A study published in Applied Thermal Engineering reviews current status of the free cooling technologies in data centres
Thermal comfort in commercial buildings
An article published by Consulting Specifying Engineer focuses on the factors to consider when providing thermal comfort in commercial buildings.
Performance comparison of R1234yf and R134a
A study published in Applied Thermal Engineering compares the performance of HFC-134a and HFO-1234yf as drop-in alternative in automotive air conditioning systems.
For IIR members only
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.
Cooling solutions for hybrid electric aircraft
The electrification of aircraft propulsive systems requires specific cooling technologies as part of the decarbonation of the aviation industry. A recent review article presents...
Heat pump systems for HVAC in electric vehicles
Heat pump systems offer an energy efficient option for HVAC in electric vehicles. Recent studies present innovative technologies to further improve the heating and cooling performance of heat pump systems as...
ASHRAE Technology Awards: winning project features green design
The ASHRAE Technology Awards recognize outstanding achievements by members who have successfully applied innovative building design in the areas of occupant comfort, indoor air quality (IAQ) and energy conservation. The designs incorporate ASHRAE...
An ejector refrigeration system optimised for sub-zero temperatures on fishing vessels
Large amounts of diesel fuel are used to power fishing vessels engines and on-board refrigeration systems. In a recent theoretical study, an energy-efficient sub-zero refrigeration system proposed based on a...
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.
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...
New evaporative cooling system for more energy efficient data centres
A dew point cooling system, which is an indirect evaporative cooling system that approaches the dew point, has reduced the electricity consumption of a UK data centre by 80%.
Efficient mine cooling
Bluhm Burton Engineering (BBE) is currently implementing energy management ventilation and refrigeration systems for mines to reduce overall and to manage energy consumption. BBE's Director, Raymond Funnell, has underscored that there is a boom in...
Energy saving initiatives for cooling in data centres
In January 2021, Europe’s leading cloud and data centre operators signed the Climate Neutral Data Centre Pact, a self-regulatory initiative to become climate neutral by 2030. According to recent studies, free...
Impact of ageing on the energy efficiency of refrigerating household appliances
A recent study shows an average increase in energy consumption of 11% after 2 years of operation and 27% after 16 years for these appliances. Ageing wall insulation and door gasket contribute to this...
Energy efficiency comparison of air-conditioning systems in electric vehicles
A study compares the energy efficiency of conventional refrigeration systems with that of heat pumps in mobile air conditioning. R744, R134a and R1234yf are considered. Reversible heat pumps are found the most energy-efficient systems.
IIR news
20 results
ICR 2011 in Prague: a Resounding Success
The 23rd IIR International Congress of Refrigeration held in Prague, on August 21-26, 2011, was highly successful...
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...
EU project ENOUGH offers PhD scholarship at CNR-ITC in Padova (Italy)
A PhD scholarship will be offered as part of the Horizon 2020 project ENOUGH. The European project will aim to provide technologies, tools and methods to contribute to the EU Farm to Fork strategy to achieve...
IIR National Committees: Discover the new bureau of the US National Committee
Following the February 2025 meeting of the USNC/IIR committee meeting, find out more about the new bureau and their activities.
Activities of the IIR’s Commission A2 on Liquefaction and Separation of Gases
The problems related to thermodynamic optimization and new technologies in liquefaction and separation of gases are actual and critical for many branches of modern industry, power generation and medicine.
Recap of the ENOUGH webinar: Innovative freezing technologies for a more sustainable food chain
On May 22, science and industry experts took part in the ENOUGH Webinar on recent advances in food freezing, exploring various ways to enhance sustainability in thermal processes.
PhD student recruitment
PhD Studentship for 36 months for a subject concerning Magnetic Refrigeration at Room Temperature (Machines, Theory, Modelling and Experiments): We are looking to recruit a PhD student in the area of magnetic refrigeration (thermal and fluid...
New IIR Informatory Note on automotive air conditioning
The latest IIR Informatory Note presents recent technological trends in automotive air conditioning, in particular for electric cars, and outlines the challenges in terms of energy efficiency and CO2...
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...
ERC Grant Awarded to Steffen Grohmann for Advancing Cryogenic Technology
Steffen Grohmann, President of IIR Commission A1, receives an advanced grant from the European Research Council for his innovative cryogenic technology project: GRAVITHELIUM, a key technology for the Einstein...
Launch of the AGRI-COOL website
The IIR is proud to announce the official launch of the AGRI-COOL website, which will provide a central access point for information on this pioneering project to address the challenges of food security, climate...
Discover the 33rd IIR Informatory Note on "Cogeneration/Trigeneration"
This Informatory Note discusses the operating principles of cogeneration and trigeneration as well as their advantages and challenges.
Download the new IIR Informatory Note on Solar Cooling
Solar cooling may have a very positive environmental impact reducing the usage of fossil fuel, and the technology is almost mature enough to compete with conventional cooling equipment.
The IIR at the heart of magnetic refrigeration
Magnetic refrigeration technology proves more alluring than ever: conferences, workshops and research projects continue to make waves.
A new version of the ATP Agreement
The new version on the international carriage of perishable foodstuffs and on the special equipment to be used for such carriage became effective from 30 September 2015. The IIR was involved in this process thanks to its Commission D2...
Encyclopedia of Refrigeration
6 results
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...
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...
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...
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...
