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IIR document
Horizontal tube bundle falling film distiller for ammonia–water mixtures.
Convective boiling of R-134a on enhanced-tube bundles.
Optimization of correlations for tube bundles during boiling heat transfer with hydrocarbons.
A correlation for heat transfer during boiling on bundles of horizontal plain and enhanced tubes.
Effect of downward vapor stream on falling film evaporation of R134a in a tube bundle.
Prediction and experimental investigation of heat and mass transfer characteristics of a horizontal tube bundle adsorber.
Experimental study of falling films over tube bundle distiller in ammonia-water liquid mixtures.
Design and characteristics of a novel tapered tube bundle receiver for high-temperature solar dish system.
Spray evaporation of R1234ze(E)/POE-68 refrigerant-oil mixture on enhanced tube bundles.
Prediction of heat transfer in evaporation of saturated falling films on bundles of horizontal tubes.
Experimental investigation on nucleate boiling heat transfer of low GWP refrigerants over metal-foam enhanced tube bundles.
Numerical study of thermal performance of a PCM in a modifying tube-bundle latent heat thermal storage.
Effect of lubricating oil on the refrigerant heat transfer performance during spray evaporation on tube bundles.
Characterization and numerical simulation of liquid refrigerant R-134a flow emerging from a flooded evaporator tube bundle.
Experimental study of ammonia flow boiling in a vertical tube bundle: Part 1 – Enhanced dimple tube.
Refrigeration sector monitoring
5 results
Experimentation of a film rejecting 70% of solar heat
A team of researchers explored the ability of a phase-change material film set on windows to reject incoming solar heat.
Germany: Blue Angel ecolabel now includes heat pumps and liquid coolers
The 2023 edition of the German “Blue Angel” ecolabel now includes domestic heat pumps and “liquid coolers”.
Insight into the recent decline in heat pump sales in Europe
The EHPA reports that heat pump sales in 14 European countries fell by around 5% overall in 2023 compared to 2022.
CO2-based car air conditioning more efficient?
The prototype of a car operating with a CO2-based air conditioning system is claimed to be operating more efficiently than current models running with R134a.
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.
IIR news
2 results
News from IIR members: DKV
New DKV publications:• CD-ROM of Deutschen Kälte-Klima Tagung 2010 in Magdeburg, containing all papers and presentations. Languages: German and English• Special: CD-ROMs from DKV-Tagungen 2002 to 2010 as a...
IIR conference on caloric cooling Thermag VIII: highlights
Thermag VIII was an opportunity to present new developments regarding magnetocaloric, electrocaloric and elastocaloric cooling.