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Heat transfer and pressure drop during flow boiling of R22, R134a, R407C and their mixtures with oil inside porous coated tubes. 1

Przejmowanie ciepla i opory przeplywu przy wrzeniu w przeplywie czynnikow R22, R134a i R407C oraz ich mieszanin z olejem wewnatrz rurek z powloka porowata. 1.

Author(s) : DAWIDOWICZ B., CIESLINSKI J. T.

Type of article: Article

Summary

The aim of the work is to identify the influence of porous coating on average heat transfer coefficient and pressure drop during flow boiling of selected refrigerants and their mixtures with oil. The aim is to determine own correlation for heat transfer coefficient during flow boiling of pure refrigerants inside porous coated tubes. In the first part published results of investigations of flow boiling inside porous coated tubes are discussed. Augmentation of heat transfer coefficient and pressure drop as well as the influence of porous on critical heat flux density is described.

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Pages: 168-177

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Details

Original title: Przejmowanie ciepla i opory przeplywu przy wrzeniu w przeplywie czynnikow R22, R134a i R407C oraz ich mieszanin z olejem wewnatrz rurek z powloka porowata. 1.
Record ID : 30001939
Languages: Polish
Source: Technika Chlodnicza i Klimatyzacyjna - vol. 18 - n. 182
Publication date: 2011/04

Links

See also: Przejmowanie ciepla i opory przeplywu przy wrzeniu w przeplywie czynników R22, R134a i R407C oraz ich mieszanin z olejem wewnatrz rurek z powloka porowata. 2.

See other articles in this issue (1)
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Indexing

Themes: HCFCs;
Evaporators, condensers and other heat exchangers;
HFCs;
Heat transfer;
Mass transfer;
Lubricants;
Blends
Keywords: R407C; R134a; Tube; Heat transfer; R22; Mixture; Oil; Flow; Flow boiling; Boiling; Pressure drop