ShareAn investigation of refrigerant void fraction in horizontal microfin tubes.
Author(s) : YASHAR D. A., WILSON M. J., KOPKE H. R., et al.
Summary
A series of experiments to determine void fraction during both condensation and evaporation have been performed in horizontal microfin tubes with refrigerants R134a and R410A. Four tubes were examined (7.3 mm and 8.9 mm diameters with axial and 18 degree helix angle microfins). Evaporation and adiabatic conditions in microfin tubes generally show similar void fraction trends as those found in smooth tubes. Condensation results for microfin tubes show a lower void fraction than for smooth tubes.
Details
- Original title: An investigation of refrigerant void fraction in horizontal microfin tubes.
- Record ID : 2003-1174
- Languages: English
- Source: ASHRAE Transactions. 2001 annual Meeting, Cincinnati, Ohio. Volume 107, part 2 + CD-ROM.
- Publication date: 2001/06/24
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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Themes:
HFCs;
Mass transfer;
Two-phase flow;
Blends - Keywords: Two-phase flow; R410A; R134a; Microfin tube; Mass transfer; Tube; Heat transfer; Parameter; Miniaturization; Evaporation; Condensation
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- Formats : PDF
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- Source: ASHRAE Transactions. 2001 annual Meeting, Cincinnati, Ohio. Volume 107, part 2 + CD-ROM.
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