Open AccessEvaporation of non-ideal binary solution drops
Author(s) -
V. Yu Borodulin,
М. И. Низовцев,
A. N. Sterlyagov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012106
Subject(s) - evaporation , adiabatic process , aqueous solution , ideal solution , thermodynamics , ethanol , work (physics) , binary number , vapor pressure , chemistry , dilution , materials science , analytical chemistry (journal) , chromatography , organic chemistry , physics , arithmetic , mathematics
The study of the evaporation process of multicomponent liquid droplets was carried out in the work. In the simulation and experiments, an aqueous solution of ethanol of various concentrations, which is a binary non-ideal mixture with known physicochemical properties, was used as a mixture. The deviation of the solution properties from ideal was taken into account using the generalized dependence of the pressure of vapor components saturated above the solution on their concentration in the solution. Using an example of an aqueous ethanol solution, a deviation of the change in the diameter of the droplets from the “law d2” was shown, which is associated with a two-speed evaporation mode. During evaporation at a low concentration of ethanol, the temperature of the droplet was close to the temperature of adiabatic evaporation of water; at a high concentration of ethanol, it was close to the temperature of adiabatic evaporation of ethanol. Comparison of the results of the simulation with experiment showed satisfactory agreement.