EFFECT OF VOLUME CONDENSATION ON THE INTENSITY OF HEAT AND MASS TRANSFER

The paper presents the results of solving the problem of liquid evaporation and its vapor condensation in a closed space with regard to the formation of droplets in it as a result of homogeneous vapor nucleation, obtained by jointly solving the Boltzmann kinetic equation and the equations of continuum mechanics. The kinetics of homogeneous vapor condensation is described by the corresponding system of moment equations. Calculations for water have shown that in the case where the evaporation surface temperature exceeds 330 K, volume condensation of vapor occurs with high intensity, which leads to signifi cant changes in the profi les of its parameters
The paper presents the results of solving the problem of liquid evaporation and its vapor condensation in a closed space with regard to the formation of droplets in it as a result of homogeneous vapor nucleation, obtained by jointly solving the Boltzmann kinetic equation and the equations of continuum mechanics. The kinetics of homogeneous vapor condensation is described by the corresponding system of moment equations. Calculations for water have shown that in the case where the evaporation surface temperature exceeds 330 K, volume condensation of vapor occurs with high intensity, which leads to signifi cant changes in the profi les of its parameters
Author:  V. O. Maiorov, V. Yu. Levashov, A. P. Kryukov
Keywords:  evaporation, volume condensation, homogeneous nucleation, Boltzmann kinetic equation, interface
Page:  1704