Growth, condensation and departure of small and large vapour bubbles in pure and binary systems

Abstract

Theoretical analyses of bubble growth and implosion, utilizing semi-differential forms for the heat and mass equations, are presented. The effects of b (low Jacob number) and inertia (high Jacob number) controlled regimes. General solutions are obtained for small and large bubble. The treatment is extended to a binary system of a narrow concentration range of a more volatile component in an initially uniformly superheated bulk. T to non-uniform temperature field and are finally used to predict bubble departure size. Due to the presence of a more volatile component, the rate of growth is decreased, departure radius and adherence time are smaller; hence coalescence o higher boiling peak-flux. All results are in agreement with previous studies.