Numerical Modeling of the Conjugate Heat Transfer Problem for Annular Laminar Film Condensation in Microchannels

This paper presents numerical simulations of annular laminar film condensation heat transfer in micro-channels of different internal shapes. The model, which is based on a finite volume formulation of the Navier-Stokes and energy equations for the liquid phase only, importantly accounts for the effects of axial and peripheral wall conduction and non-uniform heat flux not included in other models so far in the literature. The contributions of the surface tension, axial shear stresses and gravitational forces are included. This model has so far been validated versus various benchmark cases and versus experimental data available in literature, predicting microchannel heat transfer data with an average error of 20% or better.

Published in:
Mnhmt2009, Vol 2, 129-137
Presented at:
ASME Micro/Nanoscale Heat and Mass Transfer International Conference, Shanghai, PEOPLES R CHINA, Dec 18-21, 2009
American Soc Mechanical Engineers, Three Park Avenue, New York, Ny 10016-5990 Usa

 Record created 2012-01-09, last modified 2018-01-28

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