Research Papers: Evaporation, Boiling, and Condensation

Revisit of Laminar Film Condensation Boundary Layer Theory for Solution of Mixed Convection Condensation With or Without Noncondensables

[+] Author and Article Information
Y. Liao

Laboratory for Thermal-Hydraulics, Paul Scherrer Institute, 5232 Villigen PSI, Switzerlandyehong.liao@psi.ch

J. Heat Transfer 132(10), 101501 (Jul 27, 2010) (6 pages) doi:10.1115/1.4001929 History: Received December 08, 2009; Revised May 05, 2010; Published July 27, 2010; Online July 27, 2010

This work presents a unique and unified formulation to solve the laminar film condensation two-phase boundary layer equations for the free, mixed, and forced convection regimes in the absence or presence of noncondensables. This solution explores the vast space of mixed convection across the four cornerstones of laminar film condensation boundary layer theory, two established by Koh for pure vapor condensation in the free or forced convection regimes and the other two established by Sparrow corresponding to condensation with noncondensables. This formulation solves the space of mixed convection completely with Koh and Sparrow’s solutions shown to be merely four specific cases of the current solution.

Copyright © 2010 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Schematic of the physical and coordinate system

Grahic Jump Location
Figure 2

Noncondensable gas effect in the entire mixed convection regime



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