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IIR document
Measurements of pρTx and specific heat capacity cv for (R290 + R1243zf) binary mixtures at temperatures from (292 to 350) K and pressures up to 11 MPa.
Evaluación de riesgos de los acondicionadores de aire R22 usando R290.
Risk assessment of R22 air conditioners using R290.
Análisis y evaluación experimental de un sistema en cascada R744/R290 empleando tres configuraciones de intercambiador intermedio.
Analysis and experimental evaluation of an R744/R290 cascade system using three heat exchanger configurations.
Un nuevo método de optimización estructural para distribuidores en aire acondicionado R290 con tubos de cobre de pequeño diámetro.
A new structural optimization method for distributors in R290 air conditioner with small diameter copper tubes.
Recommended by the IIR / IIR document
Research on flammability of R290/R134a, R600a/R134a and R600a/R290 refrigerant mixtures.
Optimización energética de los refrigerantes R152a, R1234yf, R290, R1270, R600a y R744, como alternativa al R134a en un armario de refrigeración vertical.
Energy optimisation of R152a, R1234yf, R290, R1270, R600a and R744 refrigerants as alternatives to R134a in a vertical refrigeration cabinet.
Improved energy efficiency for domestic refrigerator/freezer using hydrocarbon mixtures (R290/R600a, R290/R600 and R600a/R600).
An experimental analysis of R290 application in household refrigerator.
Measurement of R290 leakage with laser doppler anemometry.
R-290 scroll compressor technology.
Experimental analysis on R290 solubility and R290/oil mixture viscosity in oil sump of the rotary compressor.
Prediction of gas-liquid equilibrium properties of two binary refrigerants (R1234ze(E)+R290, R290+R227ea) with COSMO-RS model.
Simulation on vapor liquid equilibria of R1234yf/R290/R134a ternary system.
[In Chinese. / En chinois.]
The experimental study of PVTx properties of near azeotropic mixture refrigerant R290/R134a.
Etude des propriétés thermophysiques de mélanges huile POE/R-290.
Study of the thermophysical properties of POE oil and R-290 mixtures.
Refrigeration sector monitoring
96 results
Flammability hazards of air conditioners using R290 (propane)
R290 (propane) attracts a lot of interest as a replacement refrigerant of high-GWP HFCs for household air conditioners, due to its negligible GWP, favourable system performance and relatively low cost. However, it raises some questions due to its...
Midea launches R290 split ACs on the European market
In autumn 2021, Midea, corporate member of the IIR, began marketing R290 split air-conditioning units in Europe. Further imports are planned for early 2022.
R290 AC sales in India exceed 100,000 units
Godrej & Boyce Manufacturing started the production of India’s first commercially available R290 split air conditioners in March 2012.
Grenada inaugurates its first R290 air conditioning systems
On August 25, the small Caribbean island country of Grenada installed its first two air-conditioning (AC) units using hydrocarbons.
R290 units in Vietnam's cold stores delivering 20-25% efficiency gains over R22.
As part of a UNIDO project implemented in Vietnam, R290 units were installed in four companies to replace previous R22-based systems.
Performance of R32 and R290 as alternatives to R22 and R410A in domestic air conditioning
According to the authors, regardless of the capacity difference, R290 could be considered as the most appropriate substitute in air conditioners with small finned tube heat exchangers
BESA releases new guidelines for safe use of R290 propane in heating and cooling systems
BESA's latest technical guidance outlines safety practices and technical considerations for using R290 (propane) in RACHP systems.
R410A/R22 alternatives for AC in high-ambient temperature environments: R32 and R290
The final US Oak Ridge National Laboratory report – presented during MOP27 in Dubaï – compares the performance of low-GWP alternative refrigerants to HFC R410A in mini-split air conditioners (ACs) under high-ambient-temperature conditions.
Chinese R-290 retrofitting project
Propane is rapidly gaining ground in China, a Multilateral-Fund (MLF) project aims at converting a compressor production line to R-290 and has successfully passed a first technical evaluation: conversion of a production line with an annual...
Minimizing emissions in 3 Australian supermarkets by using R-290
AIRAH (Australian Institute for Refrigeration Air-conditioning and Heating) has published a case study on 3 Aldi supermarkets in Australia that are minimizing greenhouse gas emissions by using R-290 (propane) chest freezers in their retail frozen...
ICR2007: CO2 in the limelight
Among the 876 papers presented at the IIR International Congress of Refrigeration in Beijing, 82 were on CO2 as a refrigerant or secondary fluid. Many dealt with new components for CO2, the lack of such components being currently still one of the...
Propane air conditioners: improving leakage safety
The latest research and developments in leakage safety of R290 air conditioners are presented in several articles recently published in the IJR.
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.
UNIDO rewards Midea’s efforts in environmental protection
Midea’s work on the use of propane (R290) in air conditioning has been recognized by UNIDO.
A new leak detection system for flammable refrigerants
A team of researchers has recently developed and tested a leak detection system for small equipment working with R290. Using ultrasound, it detects leaks effectively and at a lower cost than conventional...
IIR news
31 results
ICR2007
Several types of IIR medals and awards will be given out at the 22nd IIR International Congress of Refrigeration to be held in Beijing, China, on August 21-26, 2007. If you are aware of an outstanding person who could be honoured, check out
Upcoming conference: ICR2007
A call for papers has been launched: abstracts are to be submitted by August 31, 2006. The Science and Technology Committee will screen them, and authors will be informed of acceptance by November 30, 2006. The deadline for submission of full...
Briefs: ICR2007 awards
The IIR is delighted to announce the winners of awards to be presented during the awards banquet to be held during the Beijing congress: IIR Medal of Merit: Fritz Steimle; IIR Gustav Lorentzen Medal: Alexey Arkharov; IIR Science & Technology...
ICR2007 in Beijing
The International Institute of Refrigeration (IIR) holds Congresses every 4 years. They have two objectives: - a scientific objective: apart from the numerous IIR and IIR-co-sponsored conferences (about 50 over a 4-year period), which are focused...
Calls for papers: ICR2007
A Call for Papers for the 22nd IIR International Congress of Refrigeration — Refrigeration Creates the Future — was launched on June 30, 2006: abstracts are to be submitted by August 31, 2006. Authors will be informed of acceptance by November 30,...
Upcoming IIR events: ICR2007
22nd IIR International Congress of Refrigeration (ICR2007): Refrigeration Creates the Future will take place on August 21-August 26, 2007 in Beijing, China. The deadline for abstract submission is August 31, 2006. Submit your abstract now:
22nd IIR International Congress of Refrigeration (ICR2007): Refrigeration Creates the Future will take place on August 21- 26, 2007 in Beijing, China. Keep updated and register:www.icr2007.org
22nd IIR International Congress of Refrigeration (ICR2007): Refrigeration Creates the Future will take place on August 21-26, 2007 in Beijing, China. Keep updated and register:www.icr2007.org
Latest news from B-Medical Systems, Epta and GEA, three IIR corporate members
B Medical Systems, a global leader in the vaccine cold chain, is expanding its production capacity due to the COVID-19 pandemic, Epta monitors R290 fridges in cashier-free store in Dubai and GEA provides a...
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...
Now available: IIR-Gustav Lorentzen Conference Papers
Download your copy of the proceedings of the 14th Gustav Lorentzen Conference on Natural Refrigerants. Over 120 technical papers are available!
The IIR worldwide (June 2019)
Focus on the latest IIR interventions around the world.
Now available: IIR-Gustav Lorentzen Conference Papers 2022
Download one or all of the 170 technical papers from the 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants!
INDEE+ in ACREX
Last month, INDEE+ participated in the 23rd edition of ACREX India in Delhi, focused on the theme “Powering Global HVAC Supply Chain”.
Past events: the IIR worldwide, April 2024
In March and April, the IIR attended Centro Studi Galileo, IIAR, and China Refrigeration conferences. Update on these three events
Encyclopedia of Refrigeration
6 results
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...
Thermophysical properties of hydrocarbon refrigerants
Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.
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.
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...
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...
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...
