Sensible Heat Correction in Laminar Film Boiling and Condensation

1987 ◽  
Vol 109 (2) ◽  
pp. 545-547 ◽  
Author(s):  
P. Sadasivan ◽  
J. H. Lienhard
Keyword(s):  
Film Boiling ◽  
Sensible Heat ◽  
Laminar Film

Two phase boundary layers in laminar film boiling

1985 ◽  
Vol 19 (3) ◽  
pp. 211-216 ◽  
Author(s):  
A. Nakayama ◽  
H. Koyama
Keyword(s):  
Phase Boundary ◽  
Boundary Layers ◽  
Film Boiling ◽  
Two Phase ◽  
Laminar Film

Effects of Vapor Superheat and Condensate Subcooling on Laminar Film Condensation

1999 ◽  
Vol 122 (1) ◽  
pp. 192-196 ◽  
Author(s):  
J. Mitrovic
Keyword(s):  
Heat Transfer ◽  
Single Phase ◽  
Saturated Vapor ◽  
Interfacial Shear ◽  
Film Condensation ◽  
Sensible Heat ◽  
Laminar Film ◽  
Laminar Film Condensation ◽  
Condensation Model ◽  
The Heat Transfer Coefficient

Nusselt’s model is employed to illustrate the effects of vapor superheat and condensate subcooling on laminar film condensation occurring under simultaneous actions of gravity and interfacial shear. The vapor superheat affects the condensation kinetics in cooperation with heat transfer in both phases. Under comparable conditions, the condensate film is thinner and the heat transfer coefficient larger for superheated than for saturated vapor. The heat flux on the cooling surface arising from the sensible heat of condensate increases as the critical point of the condensing substance is approached and, at this point, the Nusselt condensation model gives the single-phase boundary layer solutions. [S0022-1481(00)00701-5]

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