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IIR document

Large-capacity propane heat pumps for DHW production in residential buildings.

• Author(s) : XU T., NAVARRO-PERIS E., PISCOPIELLO S., et al.
• Publication date: 2018/06/18
• Languages : English
• Source: 13^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
• Formats : PDF

Recent Development of High-Energy Short-Pulse Lasers with Cryogenically Cooled Yb:YAG.

• Author(s) : SUI Y., YUAN M., BAI Z., FAN Z.
• Publication date: 2022/04
• Languages : English
• Source: Applied Sciences - vol. 12 - n. 8
• Formats : PDF

IIR document

Experimental investigation of counter flow heat exchangers for energy recovery ventilation in cooling mode.

• Author(s) : AL-ZUBAYDI A. Y. T, HONG G.
• Publication date: 2018/09
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 93
• Formats : PDF

IIR document

Performance investigations on 10W/60 K high-capacity, light-weight single-stage pulse tube cryocoolers for space applications.

• Author(s) : DANG H. Z., SONG Y. Y., ZHOU B. L., et al.
• Publication date: 2015/08/16
• Languages : English
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

A study of “OVAL” scroll compressor for capacity increase.

• Author(s) : IWATAKE W., KAWAMURA R., NARUMI K., KUDO D.
• Publication date: 2021/05
• Languages : English
• Source: 2021 Purdue Conferences. 25^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Analysis of the novel multi-vane Revolving Vane compressor – Theoretical modelling and experimental investigations.

• Author(s) : CHOO W. C., OOI K. T.
• Publication date: 2021/11
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
• Formats : PDF

Development of large capacity and high efficiency rotary compressor.

• Author(s) : JAFET FERDHY M., TOSHIMASA A., SHOUGO S., et al.
• Publication date: 2018/07/09
• Languages : English
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

An experimental study on bearing characteristics of compressor considering refrigerant dissolution and friction heat.

• Author(s) : SASAKI T., IKEDA Y., SASAKI S.
• Publication date: 2021/05
• Languages : English
• Source: 2021 Purdue Conferences. 25^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

Research on noise reduction of variable speed rotary compressor with large capacity.

• Author(s) : WANG H., XIE Z., LU Y., CHU W., LI Z.
• Publication date: 2021/05
• Languages : English
• Source: 2021 Purdue Conferences. 25^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

Recommended by the IIR

Development of 3-cylinder rotary compressor for large capacity.

• Author(s) : SHISHIMOTO T., AOKI T., HIRANO K., SHIDA S., HIRAYAMA T.
• Publication date: 2021/05
• Languages : English
• Source: 2021 Purdue Conferences. 25^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Study on the method of improving the input power of the linear compressor in a high capacity pulse tube cryocooler.

• Author(s) : YOU X., QIU L., ZHI X., et al.
• Publication date: 2018/12
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 96
• Formats : PDF

IIR document

The performance of a large-scale rotary magnetic refrigerator.

• Author(s) : JACOBS S., AURINGER J., BOEDER A., et al.
• Publication date: 2014/01
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 37 - n. 1
• Formats : PDF

IIR document

New capacity control algorithm for large systems with fixed capacity ejectors.

• Author(s) : KRIEZI E., SEVER M., WERNER M., PRINS J.
• Publication date: 2023/04/27
• Languages : English
• Source: 10^th IIR Conference on Ammonia and CO₂ Refrigeration Technologies.
• Formats : PDF

Development of large capacity 3D scroll compressor for first stage of two-stage compression system.

• Author(s) : TANIGUCHI M., SATO H., TAKASU Y., et al.
• Publication date: 2018/07/09
• Languages : English
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Essential improvement of the JT cryocooler working at liquid helium temperature for space: Efficient and lightweight.

• Author(s) : CHEN Z., LIU S., SHA X., SHEN Y., YIN W., HUANG Z., DING L., JIANG Z., GAN Z., WU Y.
• Publication date: 2024/12
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 168
• Formats : PDF

Two-phase ejectors: a high potential for energy savings

Two review papers recently published in the IJR highlight ejectors as a promising solution to dramatically improve the efficiency of vapour compression refrigeration systems and outline the challenges that...

• Publication date : 2020/11/27

Solar heating and cooling: key trends and challenges

In 2020, the solar thermal energy yield amounted to 407 TWh, which correlates to savings of 43.8 million tons of oil and 141.3 million tons of CO2. Although still only a niche market, solar cooling...

• Publication date : 2021/09/07

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

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...

• Publication date : 2021/11/30
• Subjects: Figures, economy, Technology

The global refrigeration compressor market

Bien que pénalisé par la pandémie de Covid-19 qui a fortement impacté le secteur du conditionnement d’air, le marché des compresseurs a progressé dans certains domaines tels que la chaîne du froid, l’industrie...

• Publication date : 2021/04/29
• Subjects: Figures, economy

LHC season 3: cryogenic cooling system upgrade

The particle accelerator returned to service in 2022 after numerous improvements, including an increase in cryogenic cooling power at point 4. 

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

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...

• Publication date : 2023/05/30
• 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

R1234yf as a working fluid in Organic Rankine Cycle systems

A recent review article presented the use of HFO R1234yf and its mixtures in Organic Rankine Cycle (ORC) systems, namely in applications for waste heat recovery from internal...

• Publication date : 2021/09/07
• Subjects: Technology

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: Environment, HFCs alternatives

Efficiency of ground source heat pump systems

Ground source heat pumps (GHSP) have been reported to be more efficient than more widespread air source heat pumps despite higher installation costs. A recent article has reviewed parameters impacting the energy...

• Publication date : 2021/03/29
• Subjects: Technology

Magnetic refrigeration, a promising technology for the liquefaction of hydrogen

A keynote at the recent IIR Congress highlights magnetic refrigeration as a technology with high potential for the liquefaction of hydrogen, an essential energy vector for decarbonisation. 

• Publication date : 2023/11/28

The high potential of ground-source heat pumps to decarbonise the European building sector

A potential reduction of 20-40% and 30-50% of energy demand in buildings, for heating and cooling respectively, could be achieved through increased use of geothermal heat pumps. 

• Publication date : 2022/05/27

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. 

• Publication date : 2023/03/27

Novel energy-saving cryogenic equipment for walnut kernel peeling

In a recent study, a prototype cryogenic equipment was designed to peel walnut kernel more efficiently than by immersion in liquid nitrogen. 

• Publication date : 2021/04/28
• Subjects: Technology

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: HFCs alternatives, Technology

IIR member news: A new BSRIA study on the global compressor market 

A recent study by BSRIA shows that sales of refrigeration compressors in 2022 are expected to reach 502 million units with a value of USD 48.6 billion, up 15% year-on-year. 

• Publication date : 2022/12/13
• Subjects: Figures, economy

Member news: Linde to develop cryogenic cooling solutions for quantum computers

Linde, corporate member of the IIR, partners with Bluefors to develop cryogenic cooling solutions for quantum computing technology. 

• Publication date : 2021/04/29

IIR publishes a new Technical Brief: Domestic heat pumps using hydrocarbons - Current status and market overview in Europe

At a time when the energy transition is at the top of the global agenda, the IIR is publishing a new Technical Brief on domestic hydrocarbon heat pumps. This strategic document...

• Publication date : 2024/11/21
• Subjects: Figures, economy

Two new IIR Informatory Notes on Energy Recovery!

The IIR has just published two new Informatory Notes on energy recovery: one on Energy Recovery in Mechanical Ventilation Systems and the other one on Air-to-Air Energy Recovery Equipment. 

• Publication date : 2021/06/29

The IIR publishes two new IIR Informatory Notes on Energy Recovery!

The International Institute of Refrigeration (IIR) has just published two new Informatory Notes on energy recovery: one on Energy Recovery in Mechanical Ventilation Systems and the other one on Air-to-Air Energy...

• Publication date : 2021/07/13
• Subjects: Technology, Environment

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

Nanorefrigerants

Nanorefrigerants are created by adding nanoparticles in suspension to a base refrigerant. They have a thermal conductivity that is 15% to 104% higher than that of the corresponding...

• Last update : 2022/06/17
• Langues : English, French
• Themes : Nanofluids

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)