film condensation

film condensation

[′film ‚kän·dən‚sā·shən]
(thermodynamics)
The formation of a continuous film of liquid on a wall in contact with a vapor, when the wall is cooled below the local vapor saturation temperature and the liquid wets the cold surface.
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References in periodicals archive ?
A model for the laminar annular film condensation is derived.
Momentum mass fluxes in the liquid film neglected in a manner consistent with the Nusselt film condensation theory
Film condensation or evaporation of water in a horizontal rectangular duct was analyzed.
The film condensation process on a cooled surface resulting from the condensation of water vapor from humid air is considered for a horizontal flat plate (area 25 [cm.sup.2]).
Theoretical study of laminar film condensation of flowing vapour International Journal of Heat and Mass Transfer 9: 581-591 (1966).
Alkam, "Transient film condensation on a vertical plate imbedded in porous medium," Transport in Porous Media, vol.
Film condensation of vapour flowing inside a vertical tube and between parallel plates was studied in [4].
Study [5] develops a numerical model of laminar film condensation from a downward-flowing steam-air mixture onto a horizontal circular tube.
Three decades ago, the author presented a general correlation for heat transfer during film condensation inside plain tubes (Shah 1979).
Equation 9 is the Nusselt equation for laminar film condensation in vertical tubes; the constant has been increased by 20% as recommended by McAdams (1954) on the basis of comparison with test data.
Over three decades ago, the author had presented a general correlation for heat transfer during film condensation inside plain tubes (Shah 1979).
Important two-phase behaviors were observed in the experimentation of condensation in the BPHEs; e.g., when the temperature differences were not large, film condensation proved to be the dominant characteristic when determining heat transfer correlations.