Numerical study of flow condensation of dielectric liquid in microchannel

This paper presents a numerical analysis of flow condensation of dielectric liquid perfluorhexane in a rectangular microchannel using the annular flow model. It is shown that accumulation of liquid near the channel corners causes the heat transfer enhancement due to liquid film thinning. The numeric...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-11, Vol.1382 (1), p.12085
Main Authors: Safonov, S A, Kuznetsov, V V
Format: Article
Language:English
Subjects:
Annular flow
Heat transfer coefficients
Microchannels
Numerical analysis
Numerical methods
Physics
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Summary:This paper presents a numerical analysis of flow condensation of dielectric liquid perfluorhexane in a rectangular microchannel using the annular flow model. It is shown that accumulation of liquid near the channel corners causes the heat transfer enhancement due to liquid film thinning. The numerical method is validated against experiments and predicts well the average heat transfer coefficients during flow condensation in a rectangular microchannel for vapor quality higher than 0.5.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1382/1/012085