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IIR document
Speed of sound and dielectric constant measurements for a mixture of HFO-1123 and R-32 in the gas phase.
Experimental study on physical properties of CuO - PVE nano-oil and its mixture with refrigerant.
Relative permittivity of mixtures of R-134a and R-1234yf and a polyol ester lubricating oil.
Real-time frost porosity (density) measurement using capacitive sensor.
Design of capacitive sensors for measuring void fraction in headers of microchannel heat exchangers.
Mass measurement, visualization and signal pattern based calibration of capacitive sensors for measuring void fraction in headers.
Recommended by the IIR / IIR document
Experimental investigation of a vapour compression refrigeration system using R134a/Nano-oil mixture.
New low global warming halogenated olefin working fluids for use in two-phase cooling.
Dielectric coefficient and density of subcooled liquid oxygen.
The dielectric constant of liquid HFC32.
Dielectric properties of liquid refrigerants: facts and trends.
Thermophysical properties of alternative refrigerants.
The new high-frequency system for parameters measurement of two-phase cryogenic fluids (helium, hydrogen, nitrogen, oxygen, methane).
ELECTRICAL CHARACTERIZATION OF ALTERNATE REFRIGERANTS.
Refrigeration sector monitoring
7 results
Market assessment and updates of Rwanda’s national cooling strategy
In Rwanda, the purchase of household refrigerators and ACs is increasing with economic growth. As part of the national cooling strategy, the country has launched a public awareness campaign on efficient cooling...
Earth-to-air heat exchanger for air conditioning in a Colombian tropical weather
In a recent theoretical study, a passive cooling system using an earth-to-air heat exchanger (EAHE) was modelled for the Colombian tropical weather.
Impact of ageing on the energy efficiency of refrigerating household appliances
A recent study shows an average increase in energy consumption of 11% after 2 years of operation and 27% after 16 years for these appliances. Ageing wall insulation and door gasket contribute to this...
The Australian refrigeration sector: decreased emissions, transition to natural refrigerants and a growing workforce
Released in 2024, the Cold Hard Facts 4 report identifies key developments and emerging trends in the Australian refrigeration and air conditioning industry between 2016 and...
Isochoric freezing could cut down energy use in the global food cold chain
Compared to conventional isobaric freezing, isochoric freezing could significantly improve the quality of frozen food and generate substantial energy savings.
New evaporative cooling system for more energy efficient data centres
A dew point cooling system, which is an indirect evaporative cooling system that approaches the dew point, has reduced the electricity consumption of a UK data centre by 80%.
Energy saving initiatives for cooling in data centres
In January 2021, Europe’s leading cloud and data centre operators signed the Climate Neutral Data Centre Pact, a self-regulatory initiative to become climate neutral by 2030. According to recent studies, free...
IIR news
2 results
Review of F-gas regulation - IIR contribution
The IIR has responded to the European Commission consultation “Fluorinated greenhouse gases – review of EU rules (2015-20)” which aims to collect opinions and suggestions about the update of the F-gas Regulation...
The IIR at ESEF 2025 in the Gambia
For the third time this year, the IIR took part in the successful 10th edition of the ECOWAS Sustainable Energy Forum (ESEF 2025) at the Sir Dawda Kairaba Jawara International Conference Center, marking not only...
Encyclopedia of Refrigeration
1 result
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...
