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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Shigapova A.I. – student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Zamaleev Z.Kh. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Valiullin M.A. – candidate of technical sciences, associate professor Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleHeat and mass transfer in the evaporation of aqueous solutions of salts
Abstract.Problem statement. The aim of this work is to obtain experimental values of the coefficient of mass transfer to clarify the criterion of equations describing the heat and mass transfer by evaporation of aqueous solutions of salts, as well as determining the quantity of evaporated liquid and released during this heat. Results. The comparison of experimental values of the coefficient of mass transfer shows that the criterion according to precisely describe the nature of the process. The calculated mass number of evaporated solution, depending on concentration and heat fluxes from the surface evaporation. Conclusions. Analysis of the obtained results has allowed to establish that, when using criterial dependencies, it is necessary to consider the temperature and speed ranges in which the coefficient of mass transfer obtained by empirical formula that is closest to the experimental data. Identified the criterial equations that can be recommended for the calculation of heat and mass transfer characteristics during the evaporation of aqueous solutions. The results can be used in the calculations and design as well as general exchange so local ventilation.
Keywords.the diffusion coefficient, mass transfer coefficient, the criterion of dependence, convection heat.
For citations:Zamaleev Z.Kh., Valiullin M.A., Shigapova A.I. Heat and mass transfer in the evaporation of aqueous solutions of salts // Izvestiya KGASU. 2017. №2(40) P.206-211.


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