Open AccessNumerical study of flow condensation of dielectric liquid in microchannel
Author(s) -
С. С. Сафонов,
В. В. Кузнецов
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012085
Subject(s) - microchannel , condensation , materials science , heat transfer , mechanics , flow (mathematics) , dielectric , liquid dielectric , hydraulic diameter , heat transfer enhancement , thermodynamics , heat transfer coefficient , reynolds number , physics , optoelectronics , nanotechnology , turbulence
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.