Abstract
Results of numerical simulation of heat and mass transfer in a laminar flow of three-component gas at adiabatic evaporation of binary solutions from a flat plate are presented. The studies were carried out for the perfect solution of ethanol/methanol and zeotrope solutions of water/acetone, benzene/acetone, and ethanol/acetone. The liquid-vapor equilibrium is described by the Raoult law for the ideal solution and Carlson–Colburn model for real solutions. The effect of gas temperature and liquid composition on the heat and diffusion flows, and temperature of vapor-gas mixture at the interface is analyzed. The formula for calculating the temperature of the evaporation surface for the binary liquid mixtures using the similarity of heat and mass transfer was proposed. Data of numerical simulations are in a good agreement with the results of calculations based on the proposed dependence for all examined liquid mixtures in the considered range of temperatures and pressures.
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The work was financially supported by the Russian Foundation for Basic Research (Grant No. 14-08-31116).
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Makarov, M.S., Makarova, S.N. Heat and mass transfer at adiabatic evaporation of binary zeotropic solutions. Thermophys. Aeromech. 23, 23–32 (2016). https://doi.org/10.1134/S0869864316010030
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DOI: https://doi.org/10.1134/S0869864316010030