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IIR document
Chiller fault diagnosis with the technology of imbalanced data.
Automated fault diagnostics for AHU-VAV systems: a bayesian network approach.
A probabilistic framework to diagnose faults of air handling units.
Effect of common faults on the performance of different types of vapor compression systems.
A comparison of static and dynamic fault detection techniques for transcritical refrigeration.
Effect of installation faults on the performance of a split air conditioner.
A figure of merit for overall performance and value of AFDD tools.
Experimental investigation on the performance of wet cooling towers with defects in power plants.
Lab and field evaluation of fault detection and diagnostics for advanced roof top units.
A comprehensive study on the important faults in heat pump system during the warranty period.
Improving the performance of PCA-based chiller sensor fault detection by sensitivity analysis for the training data set.
A prediction method for overall economic value of fault detection and diagnostic tools for rooftop and split systems.
The effectiveness of using total system power for fault detection in rooftop units.
Fault diagnosis of refrigerant charge based on decision tree for variable refrigerant flow air-conditioning system.
Modeling air handling units to create a diverse fault dataset for FDD innovation: lessons learned and recommendations.
Refrigeration sector monitoring
29 results
The Indian government implements a default temperature setting on room air conditioners
The Indian Government has imposed a default temperature setting of 24 °C on room air conditioners with effect from January 1, 2020.
France: a government decision sets a time limit for the use of equipment leaking fluorinated greenhouse gases (in French)
A French decision states that from July 1, 2017, the use of equipment leaking fluorinated greenhouse gases will be limited to 4 days.
The climate impact of the refrigeration sector in Australia
According to a recent report, the refrigeration sector accounts for 24% of Australia’s electricity consumption and 11.5% of CO2 emissions. This report also identifies the main causes of direct and...
Higher AC setting temperatures to reduce thermal discomfort and energy demand in warm countries
Using data from four cities in India, Philippines, and Thailand, a recent study found that occupants experience thermal discomfort from unnecessarily low air conditioning (AC) temperature settings. Warmer indoor...
Refrigeration at the heart of measures to promote energy efficiency in the EU
Decarbonised district cooling, efficient cooling of data centers and local cooling plans are part of the agreement reached for a reinforcement on the EU Directive on energy efficiency.
Reducing food waste: can we keep open canned sardines in the refrigerator?
Researchers from the University of Porto studied the shelf life at 4°C of open canned sardines, depending on the type of seasoning (sardines in brine, vegetable oil, tomato...
New standards for “intelligent” ACs implemented in China
China implements new standard to officially define and set technological requirements for intelligent ACs. Additionally, a Chinese air-conditioning manufacturer is the first company in China to achieve a global...
Must read in IJR: a comprehensive review on fault detection in HVAC systems
The latest research and developments in the fault detection and diagnostics of HVAC systems are presented in several articles recently published in the IJR.
Applications of artificial intelligence to refrigeration plants
A paper from the IIR TPTPR conference presents the energy performance and maintenance benefits of 19 refrigeration plants using artificial intelligence techniques.
Worldwide adoption of MEPS on the rise
Over 100 countries now use mandatory minimum energy efficiency performance standards or energy labels for the most common appliances, according to the IEA Energy Efficiency 2022...
Global air conditioning market study in 2015
The global market contracted by 5% in value terms in 2015 whereas the market had shown a growth of 7% in 2014.
Applications of Artificial Intelligence to refrigeration systems
AI techniques, which are currently very topical, are the subject of intense research and development. Overview of their applications and benefits in the refrigeration sector, based on the latest articles...
24 °C in Mumbai
The Indian Government has launched a campaign to raise the default temperature of air-conditioning units to 24°C.
HFC alternatives: insufficient training in Europe
An AREA survey shows that in the EU, only 3.5-7% of F-Gas certified personnel are trained in the use of low-GWP refrigerants, depending on the alternative used.
Packaging innovations
Plant-based food packaging Biodegradable packaging looks set to be the way of the future. A sharp rise in demand for natural products and healthier food added to the stability of maize prices versus those of petroleum-based polymers have...
IIR news
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Find the content of the IIR website in all languages!
Did you know ? Most Internet browsers have built-in translation tools. The IIR explains how to do this, so that you can read its content in all languages!
Encyclopedia of Refrigeration
5 results
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...
Thermophysical properties of HFC refrigerants
Thermophysical properties of over 100 HFC refrigerants, including single-component and blends.
Thermophysical properties of HFO refrigerants
Thermophysical properties of over 50 HFO refrigerants, including single-component and blends.
Thermophysical properties of hydrocarbon refrigerants
Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.
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...
