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IIR document
Failure analysis of condensing units for refrigerators with refrigerant R134a, R404A.
Recommended by the IIR / IIR document
Outdoor condensing units Handling the low-GWP refrigerants including R448A and R449A
Design and installation of a R-454C condensing unit, a case study.
Experimental characterization of a condensing units’ performance under a controlled refrigerant leakage.
Test of condensing units’ performance and operating limits using different refrigerants.
Evaluation of the impact of installation environment for a condensing unit of a split-type air conditioner in a plant room of Korean apartment dwellings.
Test of condensing units performance and operating limits using different refrigerants.
Oil sensible semi-empirical two-stage rotary CO2 compressor model: calibration using experimental data and reconciliation algorithms
A digital twin for fault detection in commercial refrigeration systems: application to refrigerant leakage detection.
Steady-state modeling of condensing units with an economizer loop.
Development of commercial condensing unit employing CO2 as natural refrigerant.
Performance measurements of a two stage CO2 refrigerator and SEPR comparison with low-GWP alternative.
Fuzzy logic in a refrigerating laboratory.
High energy efficiency solution for condensing units fitted with DC compressors.
Refrigeration sector monitoring
28 results
The global evaporative condensing unit market.
A projection for the ten next years.
Briefs: Energy efficiency rise in the US residential sector
According to statistics compiled by the Air-Conditioning and Refrigeration Institute (ARI), energy-efficient products are gaining ground in the US residential sector. Following the rise of the mandatory energy efficiency standard to 13 SEER...
Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit
This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...
Cryogenic applications: cryogenic system to recover volatile organic compounds
In 2007, in France alone 12 000 tonnes of volatile organic compounds (VOCs) were released from service stations, i.e. 1% of all such emissions in France. VOCs from service stations are detrimental to health and the environment and increasingly...
US refrigeration efficiency
Commercial refrigeration manufacturers developed a Consensus Agreement that is to be put forward to the US Department of Energy (DOE) and members of Congress in the hope that it shall be included in new energy efficiency legislation. According to...
CO2 applications: First hospital catering facility refrigeration system to run with CO2 in the UK
A CO2 unit supplied by Green & Cool has been installed and commissioned by CCS Refrigeration, through Aggora on behalf of Medirest to provide for the on-site catering requirements of patients, restaurant and hospital staff at the Homerton...
Penetration of transcritical CO2 continues to increase
In Europe, North America and Japan, the number of transcritical CO2 installations continues to increase significantly in commercial and industrial refrigeration.
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...
Highlights from IIR Ohrid conference
The 6th IIR conference on Ammonia and CO2 Refrigeration Technologies held in April 2015 in Ohrid, Macedonia, FYROM, proved highly successful. Highlights from some of the 54 papers presented were
US to ban high-GWP refrigerants
A rule proposal by the US Environmental Protection Agency (EPA) provides that all high-GWP HFCs, including R134a, R404A and R410A, will be banned in most new refrigeration equipment...
Member news: Star Refrigeration continues to develop Azanefreezer’s production for cold stores
Azanefreezer, an ammonia system, has just been installed in a cold store near Peterborough, UK.
Heat pump sales grew dramatically in Europe in 2021
According to the 2022 market report by the European Heat Pump Association (EHPA), heat pump sales grew by +34% in 2021, compared to a +7.4% growth in 2020.
World refrigeration equipment market is growing
The global refrigeration market value reached USD 96.3 billion in 2017, showing an increase of about 4.6% compared with 2016, JARN said. Of the total, commercial applications hold the largest market share with USD 61.3 billion.
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.
Canada: Government intends to prohibit R134a in commercial refrigeration
A Notice of Intent was published by the Canadian Ministry of Environment indicating that the government is considering prohibition of the manufacture and import of high GWP refrigerants, including R134a, R507 series and R404A in certain commercial...
IIR news
8 results
INDEE+ Project: Norwegian R744 condensing units arrived in India for educational purposes
Three R744 condensing units were sent to India by Prof. Armin Hafner (NTNU, Norway) to educate Indian institutions, end-users and vendors on clean cooling technologies, with the aim of helping India meet...
News from IIR members: Tecumseh’s new quiet range
According to the French health authorities (DDASS), over 50% of complaints concerning air-cooled condensing units used in commercial refrigeration are noise-related. Tecumseh has developed a range of 45 Silensys® condensing unit models that have...
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...
JSRAE visit to Paris: A new chapter in refrigeration collaboration
From 20 to 27 June 2024, the Japanese Society of Refrigeration and Air Conditioning Engineers (JSRAE) visited Paris to meet with the French Association of Refrigeration (AFF). A delegation from JSRAE included representatives from Tokyo...
News from IIR members: Danfoss
Danfoss was chosen by Sainsbury’s and Netto to facilitate the conversion of their stores to CO2 as part of their ambition to drastically reduce greenhouse gas (GHG) emissions. Danfoss has 10 years’ experience in the...
New IIR Informatory Note: Advancements in Supermarket Refrigeration
Download your copy of the latest IIR Informatory Note on “Advancements in Supermarket Refrigeration”
Obituary: Einar Brendeng
The IIR presents its deepest sympathy and sincerest condolences to Professor Einar Brendeng’s family, the Norwegian refrigeration industry and society.
Heat pumps, the central theme of the recent IIR Congress
An overview of the research carried out in the field of heat pumps, with the aim of achieving greater flexibility and increased energy efficiency, in particular through to the use of thermal energy...
