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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. 2.

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.

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

Type of article: Article

Summary

The aim of the work is to identify the influence of a porous coating on average heat transfer coefficient and pressure drop during flow boiling of selected refrigerants and their mixtures with oil. In this second part, an original test stand and data reduction procedure are described. Test results for the influence of a porous coating on heat transfer during flow boiling of R22; R134a, R407C and their mixtures with oil are presented and own correlations for the heat transfer coefficient during flow boiling of pure refrigerants inside porous coated tubes are proposed.

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Format PDF

Pages: 228-235

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Details

Original title: 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.
Record ID : 30004424
Languages: Polish
Source: Technika Chlodnicza i Klimatyzacyjna - vol. 18 - n. 5
Publication date: 2011/05

Links

See also: 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.

See other articles in this issue (3)
See the source

Indexing

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