Evaluation of the importance of the relative velocity during evaporation of drops in sprays

Abstract

Evaporation and combustion of liquid sprays in power systems invariably occurs in environments where there is a convective flow past the spray. This convective flow influences evaporation and combustion in at least to ways. First, it changes the heat and mass transfer rates between the spray as an entity, and the ambience. Secondly, it changes the geometry of the spray by entrainment of the spray periphery and recirculation of the gases surrounding the spray. These processes are all very complex and difficult to model. For this reason, guidance was sought initially from the study of individual drop evaporation and combustion. These studies [1-6] concurred with the experimental observation that a…

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