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Numerical modeling of critical-state magnetization in type-II superconducting cylinders under parallel and transverse magnetic field.

• Author(s) : FARINON S., IANNONE G., FABBRICATORE P., et al.
• Publication date: 2016/11
• Languages : English
• Keywords : Superconductor, Simulation, Magnetism, Critical state, Cylinder, Magnetic field
• Source: Cryogenics - vol. 81

IIR document

Research on similarity characteristics of critical states transferring of adjustable ejector.

• Author(s) : YANG Y., WANG N., REN X., LI Y., GUO X., ZHANG K., SHEN S.
• Publication date: 2023/04
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 148
• Formats : PDF

IIR document

PVT Properties, Saturated Densities, and Critical Parameters of trans-1,2-Difluoroethene (R1132(E)) + 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf).

• Author(s) : SAKODA N., HIGASHI Y.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Mixture, Critical density, R1132(E), R1234yf, Expérimentation, Equation of state, Thermodynamic property, Critical pressure, Critical temperature, Critical point, HFO, Low GWP
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Critical heat balance error for heat exchanger experiment based on entropy generation method.

• Author(s) : ZHANG Z., ZHANG Y., ZHOU W., et al.
• Publication date: 2016/02/05
• Languages : English
• Keywords : Heat balance, Expérimentation, Critical state, Entropy, Heat exchanger
• Source: Applied Thermal Engineering - vol. 94

A fundamental equation of state for trans-1,1,1,4,4,4-hexafluoro-2-butene [R1336mzz(E)].

• Author(s) : AKASAKA R., SIMONI L. D., LEMMON E. W.
• Publication date: 2022/07/10
• Languages : English
• Keywords : Equation of state, R1336mzz(E), Low GWP, Thermodynamic property, Critical pressure, Critical temperature, Mixture, HFO
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Measurements of PvT properties, saturated densities, and critical parameters of R1132(E).

• Author(s) : SAKODA N., PERERA U., THU K., HIGASHI H.
• Publication date: 2022/08
• Languages : English
• Keywords : R1132(E), Pressure, Volume, Temperature, Measurement, Critical state, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 140
• Formats : PDF

IIR document

Thermodynamic properties measurement of binary HFC32 + CF₃I refrigerant mixtures

• Author(s) : SAKODA N., HIGASHI Y.
• Publication date: 2021/09/01
• Languages : English
• Keywords : Binary mixture, Thermodynamic property, Expérimentation, Liquid-vapour, Equilibrium, R32, Equation of state, Critical pressure, Critical temperature, Iodine
• Source: 6^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
• Formats : PDF

Separate sensible and latent cooling systems: a critical review of the state-of-the-art and future prospects.

• Author(s) : NAWAZ K., GLUESENKAMP K.
• Publication date: 2018/07/09
• Languages : English
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Prediction of thermodynamic properties of refrigerant fluids with a new three-parameter cubic equation of state.

• Author(s) : COQUELET C., ABBADI J. el, HOURIEZ C.
• Publication date: 2016/09
• Languages : English
• Keywords : Equilibrium, Liquid-vapour, Density, Thermodynamic property, Parameter, Modelling, Equation of state, Refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 69
• Formats : PDF

IIR document

A study on the modeling of the minimal stable superheat for a variable speed refrigeration system.

• Author(s) : SHANG Y., WU A., FANG X.
• Publication date: 2015/11
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 59
• Formats : PDF

IIR document

Experimental determination of the critical parameters for trans-1-chloro-3,3,3-trifluoroprop-1-ene [R1233zd(E)] and cis-1-chloro-2,3,3,3-tetrafluoroprop-1-ene [R1224yd(Z)].

• Author(s) : TANAKA K., AKASAKA R.
• Publication date: 2021/11
• Languages : English
• Keywords : HFO, HCFO, R1224yd(Z), R1233zd(E), Expérimentation, Critical pressure, Critical temperature, Critical density
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
• Formats : PDF

IIR document

Measurement of critical properties for the binary mixture of R744 (carbon dioxide) + R1234ze(E) (trans-1,3,3,3-tetrafluoropropene).

• Author(s) : YAO X., SHEN J., KANG H., TANG B., LI Z., LI J., DONG X., GONG M.
• Publication date: 2023/08
• Languages : English
• Keywords : Measurement, R744, R1234ze(E), Binary mixture, Critical temperature
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 152
• Formats : PDF

IIR document

Electronic transport properties of NBTI in copper matrix superconducting wires.

• Author(s) : NICULESCU A. E., PICIOREA I., RIZOIU A., et al.
• Publication date: 2016/06/22
• Languages : English
• Source: 1^st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016). Proceedings: Bucharest, Romania, June 22-25, 2016.
• Formats : PDF

Investigation on start-up and reliability during unsteady process of low temperature air source heat pump.

• Author(s) : LIANG Y., SHEN J., ZHAO H., et al.
• Publication date: 2018/07/09
• Languages : English
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Recommended by the IIR / IIR document

Isobaric heat capacity prediction for HC, HFC, HFO and HCFO refrigerants in liquid phase.

• Author(s) : LIU Y., ZHAO X., WANG X., ZHENG X.
• Publication date: 2020/10
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
• Formats : PDF

CO2 is gaining ground in North-American supermarkets

In Canada, according to the shecco “GUIDE 2013: Natural Refrigerants - Market Growth for North America,”over 65 food-retail stores use or have made a purchase order for CO2 secondary, cascade, or transcritical refrigeration systems. CO2 is also...

• Publication date : 2013/08/26

Integrated CO2-CHP system

Brunel - a UK University - and 14 industrial partners in the commercial refrigeration sector have presented an innovative integrated energy system which has been designed to meet the needs of medium and large supermarkets and can be tailored to...

• Publication date : 2011/02/11

Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit

This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...

• Publication date : 2004/11/24

Briefs: ASHRAE to fund research on CO2

For the first time, ASHRAE is to support research on CO2 (R744) in industrial refrigeration. Thanks to an USD 90 000 grant from ASHRAE, Washington State University (WSU) will conduct research on heat exchangers for sub-critical applications over a...

• Publication date : 2008/02/12

Events: c-dig

The latest c-dig (carbon dioxide interest group) meeting took place in Lyon, France, on November 3-4, 2008 and was attended by about 40 researchers, compressor manufacturers and industry stakeholders. It gave an overview of the current state of...

• Publication date : 2009/02/24

World

The new ISO 22000 standard "Food safety management systems - requirements for any organization in the food chain" was passed in September 2005. This standard will apply to food producers and manufacturers, transport and storage operators and...

• Publication date : 2005/10/26

Refrigeration’s contribution to CCS

Led by IFP (France), the European research project Cocate - which brings together 8 other research and industrial partners worldwide for a budget of 4.5 million € - tackles the problems of rolling out a shared transportation infrastructure capable...

• Publication date : 2010/05/27

Growing interest in CO2 technology

Scientists and refrigeration practitioners are increasingly interested in carbon dioxide (CO2) technology. The IIR's Fridoc database contains 198 references to articles mentioning CO2 in their titles and 448 containing the term CO2 in the key...

• Publication date : 2004/04/28

Alternative Cooling Technologies conference, London, 1st February 2005

This conference, which was co-sponsored by the UK Institute of Refrigeration and organised commercially by RAC magazine, was well attended with about 140 people present. It was arranged in five sessions. In the first session, speakers from UK...

• Publication date : 2005/02/11

A new non-flammable mixture to boost the performance of CO2 systems

In a recent IJR article, researchers propose combining R744 with Dimethyl-ether (DME) to boost system performance while ensuring safety and low environmental impact, in a recent IJR...

• Publication date : 2024/02/26
• Subjects: Technology

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

CO2 supermarkets worldwide

In its latest Accelerate Europe magazine, Shecco has disseminated figures illustrating the growth of CO2 in the commercial refrigeration sector.

• Publication date : 2016/05/03

Penetration of transcritical CO2 continues to increase

In Europe, North America and Japan, the number of transcritical CO2 installations continues to increase significantly in commercial and industrial refrigeration. 

• Publication date : 2023/12/18
• Subjects: Figures, economy, HFCs alternatives

Adoption rates of transcritical CO2 in European supermarkets vary considerably

Shecco, a group promoting natural refrigerants, recently published “Guide 2012: Natural Refrigerants – Market Growth for Europe”, that seems to reveal a large difference in the adoption rates of transcritical CO2 between European countries.

• Publication date : 2012/07/09

Current status and future trends of natural refrigerants in North and South America

Two papers presented at the IIR Gustav Lorentzen Conference perfectly illustrate the interest in natural refrigerants and the obstacles they face in the Americas. 

• Publication date : 2022/09/28
• Subjects: Technology

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

June 2004: fruitful meetings of the IIR’s statutory committees

Here are some highlights of the annual meetings of the IIR's statutory bodies (Management Committee, Science and Technology Council [STC] and Executive Committee): Strategic Plan of the IIR Four years after having adopted its Strategic...

• Publication date : 2004/07/27

IIR at COP29 in Baku: Week 1 in review

The first week of COP29 in Baku, Azerbaijan, brought together global leaders, scientists, and industry stakeholders to tackle pressing climate issues. Among the key participants, the...

• Publication date : 2024/11/17

IIR’s contribution and key outcomes at COP29

The International Institute of Refrigeration actively participated in COP29/CMP19/CMA6 held in Baku, Azerbaijan, from 11 November to 22 November 2024, contributing to key discussions and fostering discussions...

• Publication date : 2024/12/17
• Subjects: Regulation, Environment

Statement from IIR Director General at COP29

Watch the IIR’s official statement delivered by IIR Director General Yosr Allouche at COP29, held in Baku, Azerbaijan, from 11-22 November, 2024. Transcript is available...

• Publication date : 2024/12/16
• Subjects: Regulation

New design for the IJR but still quality papers!

As well as original research papers the IJR also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of...

• Publication date : 2019/11/20

INDEE+ at 23rd India International Seafood Show (2023), Kolkata, India

In February 2023, INDEE+ successfully participated to the 23rd India International Seafood Show (2023) in Kolkata. The project was jointly promoted in a technical session and at a dedicated booth.

• Publication date : 2023/03/28

IIR in Bangkok: Highlights from COP13/MOP36 and the World Cold Chain Symposium

IIR actively participated in the COP13/MOP36 and 2024 World Cold Chain Symposium events organised in Bangkok, Thailand, from 26 October to 1 November, hosting two side events and promoting solutions for...

• Publication date : 2024/11/27
• Subjects: Regulation, Environment

An article from the IJR on the state of the art of CO2

An article published by NTNU and SINTEF in the International Journal of Refrigeration summarises several researches on current and future "CO2 only" solutions for supermarket applications.

• Publication date : 2018/10/18

Healthcare drones: Countless advantages for a healthier society

With the objective of making it possible for those who require urgent healthcare supplies delivered as often and as regularly as necessary, various companies are now pushing the possibilities of exploiting drones to deliver healthcare supplies...

• Publication date : 2017/03/22

Upcoming cutting-edge IIR events for 2016

IIR conference activities in 2016 show a promising choice of events covering cutting-edge refrigeration themes from refrigerants to energy issues.

• Publication date : 2016/05/25

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

Newsletter INDEE+ | September 2023

The latest news on the INDEE+ project.

• Publication date : 2023/09/22

Past events: The IIR around the world, August and September 2024

A look back at the IIR’s latest events during conferences (Gustav Lorentzen, Thermag, Compressors) and during sponsored vents (CHPC).

• Publication date : 2024/10/07

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

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...

• Last update : 2023/06/30
• Langues : French, English
• Themes : Ice creams

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...

• Last update : 2023/03/10
• Langues : French, English
• Themes : Freeze-drying in biology and medicine, Cryobiology, cryomedicine: general information