Local measurements on vertical subcooled flow boiling of refrigerant Novec 649

Bruder, Moritz; Sembach, Ludwig; Lampl, David; Hirsch, Christoph; Sattelmayer, Thomas

doi:10.1016/j.ijmultiphaseflow.2019.07.012

Cited by 12 publications

(2 citation statements)

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“…The tested system had an output of 1 kW, and the supply temperature was 140 • C. The authors studied the effect of the circuit parameters on its efficiency using the mentioned working medium [13]. Bruder et al [14,15], on the other hand, conducted a study of the boiling process of this medium in a vertical copper channel. They conducted studies of the temperature distribution on the surface of the channel wall for different flow rates of the medium and performed temperature and heat flux studies using a fibre optic probe and thermocouples.…”

Section: Application Of Low-pressure Refrigerants In Scientific Researchmentioning

confidence: 99%

“…They conducted studies of the temperature distribution on the surface of the channel wall for different flow rates of the medium and performed temperature and heat flux studies using a fibre optic probe and thermocouples. The same authors also presented the results of a study of the boiling process in a 40 mm × 40 mm rectangular channel at a mass flux density of 1000 kg/m 2 s [15]. The study was conducted from single-phase convection to fully developed boiling.…”

Section: Application Of Low-pressure Refrigerants In Scientific Researchmentioning

confidence: 99%

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New environmentally friendly low-pressurere frigerants mini-channel

2023

Archives of Thermodynamics

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Nowadays, in addition to the thermodynamic properties of refrigerants, their impact on the environment is of high significance. Hence, it is important to use refrigerants with the lowest possible values of ozone depletion potential and global warming potential indices in refrigeration, organic Rankine cycle (ORC), air conditioning, and heat pump systems. Natural refrigerants are the most environmentally friendly; unfortunately, they have less favourable thermodynamic properties. Currently, low-pressure refrigerants from the FC (fluorocarbons, fluorine liquids) and HFE (hydrofluoroether) groups are increasingly used. This paper presents the most important properties and applications of selected refrigerants from these groups and also reviews the literature on their use.

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Section: Application Of Low-pressure Refrigerants In Scientific Researchmentioning

confidence: 99%

Section: Application Of Low-pressure Refrigerants In Scientific Researchmentioning

confidence: 99%