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IIR document

Compatibility of plastics and metals with latent heat storage media: methodologies for evaluation.

• Author(s) : OSTRÝ M., BANTOVÁ S., STRUHALA K.
• Publication date: 2021/09/01
• Languages : English
• Keywords : PCM, Thermal energy storage, Compatibility, Plastic, Metal, Copper, Brass, Polypropylene, Polyethylene, Testing, Corrosion, Latent heat
• Source: 13^rd IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: (online) Vicenza, Italy, September 1-3, 2021.
• Formats : PDF

Study of frost properties and frost melt water drainage on microgrooved brass surfaces in multiple frost/defrost/refrost cycles.

• Author(s) : RAHMAN M. A., JACOBI A.
• Publication date: 2014/03
• Languages : English
• Source: Applied Thermal Engineering - vol. 64 - n. 1-2

IIR document

An experimental investigation on the effects of the vortex tube material, swirl generator material and the tube length to diameter ratio on vortex tube performance.

• Author(s) : RATTANONGPHISAT W., JANSAWANG S.
• Publication date: 2024/09
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 165
• Formats : PDF

IIR document

Experimental analysis of cooling and heating performance of serial and parallel connected counter-flow Ranquee–Hilsch vortex tube systems using carbon dioxide as a working fluid.

• Author(s) : KAYA H., ULUER O., KOCAOGLU E., et al.
• Publication date: 2019/10
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 106
• Formats : PDF

IIR document

An inquiry into new ammonia resistant potting materials.

• Author(s) : MÖHL C., HESSE U.
• Publication date: 2015/04/16
• Languages : English
• Source: 6^th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, April 16-18, 2015.
• Formats : PDF

Reducing water consumption by increasing the cycles of concentration and Considerations of corrosion and scaling in a cooling system.

• Author(s) : RAHMANI K.
• Publication date: 2017/03/05
• Languages : English
• Source: Applied Thermal Engineering - vol. 114

IIR document

Investigating fatigue failure of core motion mechanism for a small oil-free wobble-plate compressor.

• Author(s) : WANG S., SUN J., CAO F.
• Publication date: 2020/09
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 117
• Formats : PDF

IIR document

The operating principle of a fully solid state active magnetic regenerator.

• Author(s) : ZHANG M., MEHDIZADEH MOMEN A., ABDELAZIZ O.
• Publication date: 2016/09/11
• Languages : English
• Source: 7^th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VII). Proceedings: Turin, Italy, September 11-14, 2016.
• Formats : PDF

Chemical compatibility of high performance engineering thermoplastics in compressor environments.

• Author(s) : PAI-PARANJAPE V., ZIEGLER C.
• Publication date: 2014/07/14
• Languages : English
• Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Numerical investigation of thermal and hydraulic performances of a condenser coil with oblique-shaped tubes.

• Author(s) : KHOO K. L., LEWPIRIYAWONG N., SUN C., et al.
• Publication date: 2019/07
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 103
• Formats : PDF

Preliminary analysis of a fully solid state magnetocaloric refrigeration.

• Author(s) : ZHANG M., MEHDIZADEH MOMEN A., ABDELAZIZ O.
• Publication date: 2016/07/11
• Languages : English
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Improved performance of latent heat energy storage systems in response to utilization of high thermal conductivity fins.

• Author(s) : YE W., JAMSHIDEASLI D., KHODADADI J. M.
• Publication date: 2023/02
• Languages : English
• Source: Energies - vol. 16 - n. 3
• Formats : PDF

IIR document

RHEOLOGICAL BEHAVIOUR OF STIRRED YOGURT DURING STORAGE AT 2 DEG C.

• Author(s) : BASAK S., RAMASWAMY H. S., VOORT F. R. van de
• Publication date: 1991/08/10
• Languages : English
• Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
• Formats : PDF

IIR document

Development of the 400 A 2nd generation HTS current leads.

• Author(s) : DEMIKHOV E., KOSTROV E., LELEKHOV S., et al.
• Publication date: 2006/07/17
• Languages : English
• Source: Multiconference CryoPrague 2006 (9th Cryogenics 2006, ICEC 21, ICMC'06)
• Formats : PDF

IIR document

INVESTIGATION OF HEAT TRANSFER ON FINNED MARINE CONDENSER PIPES.

• Author(s) : BONCA Z., KALINOWSKI K.
• Publication date: 1983/08/07
• Languages : English
• Source: [Refrigeration serving humanity]. Proceedings of the XVI^th international Congress of Refrigeration.
• Formats : PDF

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...

• Publication date : 2020/04/05
• Subjects: HFCs alternatives, Environment

Heat pump efficiency at low temperatures

A study based on field data shows that heat pumps had significantly higher energy efficiency than oil or gas heating systems, particularly for outdoor temperatures above -10°C. 

• Publication date : 2023/09/22

Simplifying the preservation at very low temperature of tissues used in ophthalmology

Researchers have compared the effects of −28 °C (standard freezer) and −80 °C preservation on human amniotic membrane, which is commonly used in ophthalmic...

• Publication date : 2022/05/30
• Subjects: Technology

Low-temperature CO2 capture technologies potential

In a review paper in the International Journal of Refrigeration, D. Berstad et al. give an overview of CO2 capture conditions for a broad range of different power cycles and industrial processes.

• Publication date : 2014/01/27

Ultra-low temperature systems ready for COVID-19 vaccine storage

Mirai Intex, corporate member of the IIR, is positioning its ultra-low-temperature (ULT) systems to serve as the refrigeration technology for the storage of COVID-19 vaccines and the freeze-drying of the...

• Publication date : 2020/11/26

Cool bedrooms are healthier

A recent study published in Diabetes, June 2014 issue, shows that cooler bedrooms could enhance the production of « brown fat »

• Publication date : 2014/12/19

Low temperature transport and storage solutions for COVID-19 vaccines

Presentation of two options suitable for mRNA vaccines: one using a traditional refrigerated container adapted to storage at -35°C extending the shelf life of dry ice by 2.5 times, the other based on PCM...

• Publication date : 2022/01/28

Rapid low-temperature process adds weeks to milk's shelf life

A rapid heating and cooling of milk significantly reduces the amount of harmful bacteria present, extending by several weeks the shelf life of milk, according to a Purdue University study.

• Publication date : 2016/09/06

Novel catalysts to address overheating in hypersonic aircraft

Researchers at Australia's RMIT University have developed 3D-printed catalysts to address the challenge of overheating in hypersonic aircraft and possibly other industrial...

• Publication date : 2021/10/22
• Subjects: Technology

A cryostat provides the optical bench of the largest digital astronomic camera

The manufacture of a cryostat to be used as an optical bench for the camera of the Large Synoptic Survey Telescope has been completed.

• Publication date : 2018/09/20

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

German researchers approach absolute zero

Physicists at the University of Bremen, Germany have produced the lowest temperature ever recorded, at 38 picoKelvin, which is 38 trillionths of a degree above absolute zero.

• Publication date : 2021/11/15
• Subjects: Technology

Cryochemistry: chemical reactions accelerated by freezing

Surprisingly, some chemical reactions can be accelerated by freezing. The possible applications of studying such cryoreactions include the food and pharmaceutical cold chain, as well...

• Publication date : 2022/02/28
• Subjects: Environment, Technology

The hidden cold chain behind Valentine’s Day roses

The average journey of a Valentine’s rose, from harvesting in South America to the point of sale in the US, is 10-12 days during which the role of refrigeration is essential.

• Publication date : 2019/02/28

France: containment of refrigerating data plants

French Environment and Energy Management Agency (ADEME) recently published a study conducted by Cemafroid and IRSTEA on the containment of refrigerating plants.

• Publication date : 2016/03/15
• Subjects: HFCs alternatives

International events: Brussels

The IIR co-sponsored conference, Atmosphere 2009 took place in Brussels, Belgium, on October 19-20, 2009. It focused on general policy on replacing high global warming refrigerants (HCFCs, HFCs) by natural refrigerants (political, financial,...

• Publication date : 2010/03/07

International events: Brussels

Transfrigoroute International (TI) held its annual General Assembly in Brussels, Belgium, on September 17-18, 2009. The director of the IIR attended it, thanks to the IIR-TI partnership agreement.

• Publication date : 2009/12/09

International events: Brussels

The Executive Committee meeting of the International Energy Agency (IEA) Heat Pump Programme took place in Brussels, Belgium on November 15-16, 2007. It was preceded by a seminar and a workshop. The Director of the IIR attended the Executive...

• Publication date : 2008/02/12

News from IIR members: Tecumseh do Brasil

Tecumseh do Brasil has reached a landmark of 170 million compressors manufactured since the company was set up 35 years ago. The company manufactures hermetic compressors and condensing units for domestic and commercial refrigeration and air...

• Publication date : 2009/05/18

The Norwegian Royal Ambassy visit to INDEE+ educational unit in IIT Madras

To acknowledge the efforts of INDEE+, the Norwegian Ambassador Hans Jacob Frydenlund, Arvind Gopinath (Honorary Consul), Ms. Marit Marie Strand (Advisor), Mr. Vivek (Senior Advisor) and other team members...

• Publication date : 2022/09/28

Join our training course and officially become a new Ambassador for clean cooling and heating!

Experts and representatives from three sister projects in different regions of the world: ENOUGH in Europe, INDEE+ in India and ACES in Africa are arranging a free one-hour training course on clean cooling and...

• Publication date : 2023/06/30
• Subjects: Environment, HFCs alternatives

Member news: Mirai Intex releases new high capacity ultra-low temperature refrigeration system

Mirai Intex, corporate member of the IIR, has released a new ultra-low temperature (ULT) system based on air-cycle technology, offering high cooling capacity.

• Publication date : 2021/03/09
• Subjects: Technology, HFCs alternatives

Member news: Mirai Intex ultra-low temperature refrigeration system at the ACHEMA trade show in Germany

Mirai Intex, corporate member of the IIR, will present its MC 15 C/W/T closed-cycle refrigeration machine at the ACHEMA trade show in August 2022 in Germany.

• Publication date : 2022/08/16
• Subjects: Technology

Member news: Ultra-low temperatures. NIST creates a more efficient pulse-tube refrigerator prototype

American researchers have created a prototype pulse-tube refrigerator that significantly reduces the time and energy required to reach temperatures close to absolute zero: an exciting advance for the quantum...

• Publication date : 2024/06/27

Experience the unforgettable in Japan at ICR2015: It’s not just about refrigeration, it’s also about fun!

ICR2015: Discover the plenary speakers, technical tours, and popular tours and activities

• Publication date : 2015/05/06

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...

• Publication date : 2024/04/26

ATMO Europe Conference 2022 on Natural Refrigerants Releases Final Programme

The 12th edition of the event will take place in-person in Brussels (Belgium) on November 15–16.

• Publication date : 2022/11/10
• Subjects: Technology, Environment

BETTED: a new IIR EU funded project

This project aims to promote the energy transition of the dairy value chain. The kick-off meeting is scheduled for March 11-12 in Brussels (Belgium).

• Publication date : 2024/01/26

Call to Action for World Refrigeration Day

In support of this special day, and with the aim of raising awareness and boosting accessibility of the refrigeration sector from the grassroots up on an international level, the IIR is calling to all stakeholders to actively help bring the HVACR...

• Publication date : 2019/04/01

Awareness campaign on the CLIM'ECO programme in Guadeloupe

The IIR, partner and ambassador of the CLIM'ECO program, has undertaken a mission of sensitisation in Guadeloupe as part of the programme.

• Publication date : 2021/01/27

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.

• Last update : 2022/11/17
• Langues : French, English
• Themes : General information on environment (climate change, ozone depletion…)

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

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

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

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