Influence of homogeneous nucleation on vapor parameters near the evaporation surface: a simplified approach

Abstract

An approach that makes it possible to assess the need to take into account / neglect the process of homogeneous nucleation on the flow of vapor formed near the interface as a result of evaporation is presented. It is shown that estimations require information about the value of the surface tension coefficient of the critical size droplets. The influence of the homogeneous nucleation process on the evaporation of various substances: water, ethanol, and methanol is considered. The results show that for water, consideration of the process of homogeneous nucleation is necessary only for supersaturation ratio greater than 20, in contrast to the evaporation of methanol, when homogeneous nucleation must be taken into account at any supersaturation ratio Keywords: homogeneous nucleation, evaporation, supersaturation degree.