Special Aspects of the Drop Evaporation during Radiant Heating

The methods and results of an experimental study of the process of evaporation of a single stationary liquid drop upon radiant heat flux are presented. It is shown that the method of the drop fixation (levitation or fixing on the holder) slightly affects the rate of evaporation. A multiple increase in the rate of evaporation of drops of distilled water and ethyl alcohol is found when a colorant is introduced into the drop liquid to increase its absorption index.