Search results

IIR document

Experimental investigation on a Joule-Thomson refrigeration cycle with a ternary mixture of hydrocarbons for low-temperature freezer.

• Author(s) : LIU J., LIU Y., YAN G., YU J.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Cryocooler, Freezer, Joule-Thomson, Ternary mixture, R601a, R290, R1150, Expérimentation, Zeotropic mixture, Performance, Low temperature
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Recommended by the IIR / IIR document

Thermodynamic analysis of vapour compression heat pump cycles for high-temperature applications.

• Author(s) : ANDERSEN M. P., ZÜHLSDORF B., MARKUSSEN W. B., JENSEN J. K., POULSEN J. L., ELMEGAARD B.
• Publication date: 2022/06/13
• Languages : English
• Keywords : High temperature, Heat pump, Thermodynamic cycle, Natural refrigerant, CO2, R744, R600, R601a, R718, Water, COP, Lorenz, Industrial application, Simulation
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

IIR document

Performance analysis of a combined system for cold and power.

• Author(s) : LANDOULSI H., ELAKHDAR M., NEHDI E., et al.
• Publication date: 2015/12
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 60
• Formats : PDF

Waste Heat Recovery in a Compression Ignition Engine for Marine Application Using a Rankine Cycle Operating with an Innovative Organic Working Fluid.

• Author(s) : MARIANI A., MORRONE B., LAISO D., PRATI M. V., UNICH A.
• Publication date: 2022/11
• Languages : English
• Source: Energies - 15 - 21
• Formats : PDF

IIR document

High-temperature working fluids for heat pumps – A way to select the optimal fluid for a given application.

• Author(s) : PACHAI A. C., HAFNER A., ARPAGAUS C.
• Publication date: 2023/04/27
• Languages : English
• Source: 10^th IIR Conference on Ammonia and CO₂ Refrigeration Technologies.
• Formats : PDF

Colombia: financial aid to renew the stock of domestic refrigerators

In Colombia, 17,553 people have benefited since January 2019 from a programme to replace old domestic refrigerators with new units using isobutane (R600a). 

• Publication date : 2023/09/22
• Subjects: HFCs alternatives

A study assesses alternative mixtures to two pure hydrocarbon refrigerants

An article reviews more than 11,000 mixtures of refrigerants that could be interesting alternatives to pure R290 and R600a.

• Publication date : 2020/02/05

US EPA proposes acceptance of hydrocarbons and R32 in 6 applications

The US EPA has proposed a range of acceptable uses for hydrocarbon refrigerants – R600a, R290, R170 and R441A along with R32 under the EPA’s Significant New Alternatives Policy (SNAP)

• Publication date : 2014/09/08
• Subjects: Regulation

US: EPA expands the use of 4 hydrocarbons and R32

The US Environmental Protection Agency (EPA) recently authorised the use of four hydrocarbon refrigerants and R32 in various applications.

• Publication date : 2015/06/19

IIR member news: Embraco's Position Paper on refrigerants used in light commercial refrigeration

Compressor manufacturer Embraco publishes a "Position Paper" to assess the transitory solutions towards low GWP refrigerants.

• Publication date : 2017/04/26
• Subjects: HFCs alternatives

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

Summary of two papers of the 9th International Conference on Compressors and Coolants (ICCC2017)

The IIR 9th International Conference on Compressors and Coolants (ICCC2017), which took place in Bratislava, Slovakia, in September 2017, addressed advances in compressors but also refrigerating technologies and alternative refrigerants, as...

• Publication date : 2018/01/10

Review of CFC and HFC-free refrigerators worldwide

At the beginning of December 2004, Brazil's first CFC and HFC-free refrigerator rolled off the BSH Bosh und Siemens Hausegerate GmbH production line. Following implementation for several years in Europe , then in Australia , China , India and...

• Publication date : 2005/02/10

For IIR members only

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

Solar ejector refrigeration systems: benefits and latest developments

Two IJR articles present the latest advancements in this technology and in particular the advantages of variable geometry ejectors and low-GWP refrigerants in terms of performance.

• Publication date : 2020/06/26
• Subjects: Developing country

Assessment of the environmental impact of domestic refrigerators using LCCP

The environmental impact of domestic refrigerators over their lifetime has been quantified in different configurations (operating cycles, materials, insulation) in a recent IJR article. 

• Publication date : 2021/02/23

Initiatives to promote refrigeration technologies in the developing world

Focus on some initiatives to facilitate access to eco-friendly refrigeration technologies in hot countries.

• Publication date : 2020/06/26
• Subjects: Developing country

Natural refrigerants: the Indian perspective

In 2015 HCFCs and HFCs account for 90 percent of the total sales in the refrigeration and air-conditioning (RAC) sector in India, with about 10 percent accounted for by natural refrigerants.

• Publication date : 2016/10/12
• Subjects: Figures, economy

US: EPA approves 3 hydrocarbon refrigerants for household and commercial uses

The US Environmental Protection Agency (EPA) has added 3 hydrocarbons as acceptable alternatives in household refrigerators and freezers, combination refrigerator-freezers, and commercial stand-alone units through EPA’s Significant New...

• Publication date : 2012/02/13
• Subjects: Regulation

China: a direct leap from HCFCs to natural refrigerants?

Released for public consultation in June 2015 by China’s Ministry of Environmental Protection, the First Catalogue of Recommended Substitutes for HCFCs lists 12 substitutes for HCFC refrigerants, foaming agents and detergents, ten of which are...

• Publication date : 2015/11/11

IIR member news: Embraco

Embraco, IIR Corporate Member, announced the launch of a new oil-less linear compressor design for domestic refrigeration.

• Publication date : 2014/04/27

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

Global warming potential (GWP) of HFC refrigerants

Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...

• Last update : 2023/09/15
• Langues : French, English
• Themes : HFCs

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

Thermophysical properties of hydrocarbon refrigerants

Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : Hydrocarbons, Blends