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Design of capacitive sensors for measuring void fraction in headers of microchannel heat exchangers.
IIR document
Saturated flow boiling of HFC134a and its low GWP substitute HFO1234ze(e) inside a 4mm horizontal smooth tube.
Hydrocarbons vaporization inside a 4mm ID horizontal smooth tube.
Airside thermal and hydraulic characteristics of compact bare tube heat exchanger under dry and wet conditions.
Ammonia void fraction in smooth tubes at different gravity orientation.
Flow boiling of carbon dioxide: Heat transfer for smooth and enhanced geometries and effect of oil. State of the art review.
An experimental study on two-phase frictional pressure drop for R-407c in smooth horizontal tubes.
Saturated vapor condensation of hydrocarbons inside a 4mm ID horizontal smooth tube.
Comparative assessment of condensation and pool boiling heat transfer on horizontal plain single tubes for R1234ze(E), R1234ze(Z), and R1233zd(E).
Flow boiling heat transfer characteristics of R407C inside a smooth tube with different tube inclinations.
Experimental heat transfer coefficients of pool boiling and spray evaporation of ammonia on a horizontal plain tube.
Recommended by the IIR / IIR document
Characterization of R134a two-phase flow regimes in horizontal and vertical smooth tubes with capacitive sensors.
An experimental investigation and modelling of flow boiling heat transfer of isobutane-compressor oil solution in a horizontal smooth tube.
Investigating micro-fin and smooth tubes in horizontal two-phase flow boiling using R-1234ze and R-134a refrigerants.
HFO1234ze(E) and HFC134a flow boiling inside a 4mm horizontal smooth tube.
Refrigeration sector monitoring
6 results
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.
Adoption of long-awaited standard for flammable refrigerants
International Electrotechnical Commission standard approves increased charge of flammable refrigerants in domestic installations.
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.
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.
Are hydrocarbons in room air conditioners risky?
A team from GIZ Proklima used quantitative risk assessment tools to estimate the severity and frequency of ignition HC-600a (iso-butane) and HC-290 split air conditioners and domestic refrigerators.
Magnetic refrigeration global market
According to new research published by Markets and Markets, the magnetic refrigeration market is expected to be valued at USD 163.7 million by 2023.
IIR news
1 result
Spotlight on Commission B2: at the forefront of refrigerating equipment
Coordinated by the IIR Science and Technology Council, Commission B2 focuses on promoting knowledge of refrigerating equipment technologies and their applications worldwide.
Encyclopedia of Refrigeration
4 results
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...
Global warming potential (GWP) of HFC refrigerants
Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...
Cryogenic nitrogen in the food and beverage industry
The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...
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...
