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IIR document

Characterization of electrical properties of phase change materials for liquid fraction sensing via electrical tomography.

• Author(s) : MIRA-HERNÁNDEZ C., MANCIN S.
• Publication date: 2024/05/31
• Languages : English
• Keywords : Expérimentation, PCM, Electric property, Electric conductivity
• Source: 14^th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings:  Paris France, May 29-31, 2024.
• Formats : PDF

Changes in Physico-Chemical and Storage Properties of Dry-Aged Beef Loin Using Electric Field Refrigeration System.

• Author(s) : KANG K. M., LEE S. H., KIM H. Y.
• Publication date: 2022/06
• Languages : English
• Keywords : Beef, Ageing (meat), Electric field, Refrigeration, Microbiological quality, Organoleptic property, Expérimentation, Korea Republic
• Source: Foods - vol. 11 - n. 11
• Formats : PDF

Prediction of Date Fruit Quality Attributes during Cold Storage Based on Their Electrical Properties Using Artificial Neural Networks Models.

• Author(s) : MOHAMMED M., MUNIR M., ALJABR A.
• Publication date: 2022/06
• Languages : English
• Keywords : Organoleptic property, Machine learning, Artificial neural network, Cold storage, Date, Prediction, Expérimentation, Modelling
• Source: Foods - vol. 11 - n. 11
• Formats : PDF

IIR document

Electrocaloric polymers: different electric field cycles to increase their efficiency.

• Author(s) : PRUVOST S., BASSO V., GARBUIO L., et al.
• Publication date: 2016/09/11
• Languages : English
• Keywords : Electrocaloric cooling, Measurement, Efficiency, Electric property, Polymer, Electric field
• Source: 7^th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VII). Proceedings: Turin, Italy, September 11-14, 2016.
• Formats : PDF

Electrical protection for HVAC&R equipment.

• Author(s) : ELOVITZ K. M.
• Publication date: 2015/02
• Languages : English
• Keywords : Standardization, Refrigerating system, Protection, Electric property, USA, Air conditioning
• Source: ASHRAE Journal - vol. 57 - n. 2

Parametric Investigation on the Electrical-Thermal Performance of Battery Modules with a Pumped Two-Phase Cooling System.

• Author(s) : WANG J., RUAN L., LI R.
• Publication date: 2022/11
• Languages : English
• Keywords : Battery, Electric vehicle, Modelling, Simulation, Thermodynamic property, R1233zd(E)
• Source: Energies - vol. 15 - n. 21
• Formats : PDF

IIR document

Problems of bulk storage and shipping of liquid hydrogen in volumes of 10,000 to 100,000 cubic meters at one bar pressure.

• Author(s) : SCURLOCK R.
• Publication date: 2017/05/15
• Languages : English
• Keywords : Pool boiling, Comparison, Transport, Storage, Electric property, Flammability, Hydrogen, LNG
• Source: Cryogenics 2017. Proceedings of the 14^th IIR International Conference: Dresden, Germany, Mai 15-19, 2017.
• Formats : PDF

Evaluation of heat pumping and waste heat recovery for battery electric vehicle thermal management.

• Author(s) : SHELLY T. J., WEIBEL J. A., ZIVIANI D., GROLL E. A.
• Publication date: 2021/05
• Languages : English
• Keywords : Battery, Electric vehicle, Cooling, Waste heat, Recovery, Thermal property, Modelling
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Experimental investigations on the performance of mini-channel evaporator refrigeration system for thermal management of power batteries.

• Author(s) : HUANG D., ZHANG H., WANG X., HUANG X., DAI H.
• Publication date: 2021/10
• Languages : English
• Keywords : Electric vehicle, Thermodynamic property, Minichannel, Evaporator, Refrigerant charge, Battery, Expérimentation, Thermal property, Heat transfer coefficient, COP
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 130
• Formats : PDF

IIR document

Magnetocalorics or electrocalorics: will either replace the gas compressor in high-efficiency refrigeration appliances?

• Author(s) : WILSON N.
• Publication date: 2014/09/07
• Languages : English
• Keywords : Electrocaloric cooling, Comparison, Magnetocaloric cooling, Magnetic property, Magnetic field, Electric field
• Source: 6^th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VI). Proceedings: Victoria, Canada, September 7-10, 2014.
• Formats : PDF

A Three-Dimensional Transient Model for Evaluating the Performance of Cement-Based Thermoelectric Module.

• Author(s) : LIU X., QU M., YAZAWA K.
• Publication date: 2021/05/24
• Languages : English
• Keywords : Thermoelectricity, Modelling, Thermodynamic property, Heat transfer, Expérimentation, Thermoelectric cooling, Electricity, Composite
• Source: 2021 Purdue Conferences. 6^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

Uncertainty analysis of a heavily instrumented building at different scales of simulation.

• Author(s) : OSTROUCHOV G., NEW J., SANYAL J., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Thermal property, Thermal conductivity, Gas, Energy consumption, Electricity, Building, Simulation, Parameter, Insulation
• Source: 2014 Purdue Conferences. 3rd International High Performance Buildings Conference at Purdue.
• Formats : PDF

Evaluation of lubricant properties and refrigerant interaction.

• Author(s) : KARNAZ J., SEETON C.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Solubility, Lubricant, Low GWP, Review, Stability, Electric property, Miscibility, Refrigerant, Compressor, Compatibility
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Thermodynamic investigation and optimization of two novel combined power-refrigeration cycles using cryogenic LNG energy.

• Author(s) : DOKANDARI D. A., KHOSHKHOO R. H., BIDI M., MAFI M.
• Publication date: 2021/04
• Languages : English
• Keywords : Thermodynamic property, Optimization, Cycle, LNG, Cryogenics, Energy, Production, Electricity, Modelling, Ejector, Rankine
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 124
• Formats : PDF

Experimental and numerical study on the electrical and thermal characteristics of high energy density lithium-ion battery cell for application of battery electric vehicle.

• Author(s) : HAN U., LEE H.
• Publication date: 2021/05
• Languages : English
• Keywords : Electric vehicle, Battery, Lithium, Expérimentation, Simulation, Modelling, Thermodynamic property, Thermal energy storage
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

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,...

• Publication date : 2011/02/07

Smart Community Project to transform energy usage in the UK

A Japanese consortium is going to commence the demonstration phase of a project to help to transform the energy usage in the UK.

• Publication date : 2014/04/15

Sales of domestic refrigerators decline in France in 2023

According to Gifam, a grouping of household appliance brands, sales of domestic refrigerators in France declined in 2023, due to a challenging property and economic...

• Publication date : 2024/03/15
• Subjects: Figures, economy

Radiative cooling coatings that can adapt to the seasons

A novel material can be used as a coating on building’s rooftops or windows to provide radiative cooling in the summer without overcooling in the colder months. 

• Publication date : 2022/01/28
• Subjects: Technology

A solar-plus-ice-battery-storage system at Palm Springs Cultural Center

Ice Energy and Horizon Solar Power have completed the installation of a solar-plus-ice-battery-storage system at Palm Springs Cultural Center in California.

• Publication date : 2017/04/18

Recent overview of research on electrocaloric cooling

A recent literature review presents an overview of research on electrocaloric cooling. The authors addressed the following topics: thermodynamic cycles, electrocaloric materials, experimental devices, numerical...

• Publication date : 2021/01/04
• Subjects: Technology

Nanotechnoly: what’s new?

Nanotechnology - the manipulation of cell and atomic structure in materials no larger than a billionth of a metre in size - has recently been described by Frank O'Brien-Bernini, Vice President of Owens Corning Science & Technology Center, as...

• Publication date : 2006/07/26

The Waste Electrical and Electronic Equipment

According to the Waste Electrical and Electronic Equipment (WEEE) Directive Annex II, "Equipment containing gases that are ozone depleting or have a global warming potential (GWP) above 15, such as those contained in foams and refrigeration...

• Publication date : 2006/01/28

The Air conditioning and Refrigeration Institute (ARI) issued a white paper on Energy Recovery Ventilation (ERV).

The white paper, entitled "Characterizing the efficiency of energy recovery ventilation and informing the design of HVAC systems", supplements the ARI guideline V: "Calculating the Efficiency of Energy Recovery Ventilation and its Effect on...

• Publication date : 2004/05/18

Fermidable

In a team led by Wolfgang Ketterle, a nobel laureate, MIT (Massachusetts Institute of Technology) scientists have been the first to create "a new type of matter", a gas of atoms that shows high-temperature superfluidity. A superfluid gas can flow...

• Publication date : 2005/10/26

Easy-to-make doped thermoelectric materials

Thermoelectric materials, which can convert electric voltage into various temperature differences, ranging from hot to cold, and vice-versa, have been used in refrigerators for over 20 years, but these applications are still small and highly...

• Publication date : 2012/03/15

IIR 2023 conference in Ohrid: focus on CO2 heat pumps

As demonstrated at the last IIR conference in Ohrid , heat pumps are a potential development area for the use of CO2, in particular for the thermal management of electric vehicles. 

• Publication date : 2023/05/26
• Subjects: Technology

A possible major step in the quest of room-temperature superconductivity

Two researcher teams have just reported experiments indicating that a hydride of lanthanum compressed to 1.7 to 1.85 million bar has a critical temperature of 250–260 K (-23 – -13°C).

• Publication date : 2019/01/31

Latest research on ammonia-based absorption refrigeration systems

A recent article has reviewed literature on absorption chillers that use ammonia as a refrigerant, along with water (H2O), lithium nitrate (LiNO3), and lithium nitrate + water...

• Publication date : 2021/02/25
• Subjects: Technology

Air conditioning: which refrigerant will become the leading alternative to R410A?

R32 is being adopted widely for residential and small commercial air conditioning applications, but R466A, R452B and R454B are promising candidates, especially for larger size systems.

• Publication date : 2019/05/29
• Subjects: HFCs alternatives

IIR conference on caloric cooling Thermag VIII: highlights

Thermag VIII was an opportunity to present new developments regarding magnetocaloric, electrocaloric and elastocaloric cooling.

• Publication date : 2018/10/18

News from IIR members: Air Liquide

The world's longest and most powerful superconductor power transmission cable has been connected to the commercial power grid in Holbrook, New York, United States, by the Long Island Power Authority (LIPA) and American Superconductor. The 600-m...

• Publication date : 2008/08/12

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...

• Publication date : 2022/02/15
• Subjects: Technology, Environment

CryoHub: EU project CryoHub is inviting cold chain companies to become ‘CryoHub Champions’

The CryoHub innovation project investigates and extends the potential of large-scale Cryogenic Energy Storage (CES) and applies the stored energy for both cooling and power generation.

• Publication date : 2016/06/28

Statement given by Didier Coulomb, Director General of the IIR, during MOP 31

Statement Given by the Director General of the International Institute of Refrigeration (IIR) during the 31st Meeting of the Parties to the Montreal Protocol (MOP-31) in Rome (November 4-8,...

• Publication date : 2020/04/03
• Subjects: Regulation, Developing country, Environment

Cryogenics and Low-Temperature Physics: New Horizons and Challenges

This Focus written by Ralf Herzog*, President of the IIR’s Cryophysics, Cryoengineering commission (Commission A1) for the Newsletter of the IIR is the third in a series of presentations of the activities and hot research topics handled by the...

• Publication date : 2012/09/21

Activities of IIR’s Commission B2 on “Refrigerating Equipment”

Focus on the IIR's Commission B2

• Publication date : 2017/07/11

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...

• Last update : 2023/06/23
• Langues : French, English
• Themes : LNG and LPG

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...

• Last update : 2023/11/07
• Langues : French, English
• Themes : Freezing of foodstuffs

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...

• Last update : 2022/09/07
• Langues : French, English
• Themes : Evaporators, condensers and other heat exchangers

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...

• Last update : 2022/09/16
• Langues : French, English
• Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)

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...

• Last update : 2022/06/22
• Langues : French, English
• Themes : Hydrocarbons, Containment, refrigerant charge reduction