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IIR document
Modeling and experimental investigation of oil retention in pipelines of multi-split air conditioning system.
A review of ductless mini split HVAC system.
Component-based, gray-box modeling of ductless multi-split heat pump systems.
Experimental study on whistling noise behavior in electronic expansion valve of multi-split air conditioning system.
Impact of high-efficiency and variable-speed motors on the performance of a residential split-system air conditioning system.
Multi variable extremum seeking control for mini split air conditioning system.
A prediction method for overall economic value of fault detection and diagnostic tools for rooftop and split systems.
Performance analysis of multi-split variable refrigerant flow (VRF) system with vapor-injection in cold season.
Performance testing of a unitary split-system heat pump with an energy recovery expansion device.
Novel integration of latent heat storage in multi-split air conditioning system.
Indoor unit fault detector for a multi-split VRF system in heating mode.
A study on a new performance rating approach for a multi split (VRF) air conditioning system.
A general simulation model for variable refrigerant flow multi-split air conditioning system based on graph theory.
Variable pressure differential fuzzy control method for the multi-split backplane cooling system in data center.
Recommended by the IIR
Using machine learning for feature selection in automated fault detection and diagnosis of split system air conditioners.
Refrigeration sector monitoring
72 results
Propane, a promising alternative refrigerant in split systems
A study published over the summer shows that the use of propane in all split air conditioning systems could prevent a global temperature increase of 0.09°C by the end of the century.
Air conditioning: towards a relaxation of the rules for the use of flammable refrigerants
While the European Commission is paving the way for the use of flammable refrigerants as an alternative for split systems, the current revision of the international standard IEC 60335-2-40 should allow higher...
EU F-gas Consultation Forum: alternatives to fluorinated gases exist for single-split air conditioners
A document published by this forum underlines that it now seems possible to avoid the use of fluorinated gases in new small single split air conditioners by replacing them with propane, unless prohibition...
Newly revised efficiency standards for ACs in Brazil and India
Stringent minimum energy performance standards (MEPS) for air-conditioning (AC) equipment contribute to cutting down the energy demand for ACs globally. Setting up and periodically revising energy efficiency...
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.
First propane split air conditioners in India: field results
With a fault rate under 0.5%, the general safety and reliability levels of the systems remain quite high and risk assessments showed negligible risk.
2018: a positive year for the French air-conditioning market
Residential and light commercial split units, as well as VRF systems, registered a strong growth.
The German market for ventilation, air conditioning, refrigeration and heat pump technology
In 2012, 6,800 water coolers, 110,000 split systems and 37,400 air-to-water heat pumps were sold in Germany.
The Canadian HVAC Market. First quarter 2014
According to the Heating, Refrigeration and Air Conditioning Institute of Canada (information provided by ReportLinker), air-handler sales showed the largest increase in the first quarter of 2014.
Revision of EU F-Gas Regulation sparks debate
The European Parliament’s recent tougher proposals on heat pumps and air conditioners have provoked many reactions.
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.
The Canadian HVAC Market.
According to the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI), residential air conditioning shipments increased by 3% between the 2nd quarter 2012 and the 2nd quarter 2013.
Air conditioning
- Domestic and export sales of Chinese air conditioners set new records in the 2004 refrigeration year (September 2003-August 2004). Sales on the domestic market reached 26 million units and exports reached 25 million units. Export sales were up...
Main figures for the Australian heat pump market
Sales of heat pumps are increasing in Australia, especially for domestic water heating, in replacement of gas appliances in both existing and new buildings.
World air-conditioning market in 2019
Despite a decline of -0.8% in sales globally, many markets performed well in 2019. Inverter technology and smart air conditioners are steadily gaining ground globally while sales of R32 systems are increasing...
IIR news
2 results
Corporate members of the IIR react to the draft revision of the F-Gas (in French)
The AFF, AFCE and Snefcca have communicated their reactions to the draft revision of the F-Gas. Both organisations draw attention to the difficulty of following the recommendations currently...
IIR member news: Daikin launches new VRV solution
Daikin has launched a new VRV solution to meet the specific demands of city and urban locations where space is limited and customers want an invisible air conditioning solution.
Encyclopedia of Refrigeration
5 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...
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...
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...
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.
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...
