Research of the hydrodynamics and mass-transfer іn the apparatus with the vortex plates

Abstract

To improve performance, an efficient heat- masstransfer apparatus by providing more surface contact between the phases we have developed. This is achieved by introducing into it vortex plates and conical turbulators. Such a solution gives an opportunity to increase productivity and to simplify the construction, it can be used both for pure liquids and for suspensions, which contain solids and crystals. For a comparative analysis experimentally it is necessary to study masstransfer in the apparatus analogues and proposed construction. Analysis of the results led to make the following conclusion: irrigation of density increases the coefficients β, installation of conical vortex generators increased β about on 20 % and the hydraulic resistance increased on 10...15 %, and the coefficients β for vortex plates compared to other plates increased on 60...90 %. These figures confirm the high efficiency of vortex plates and conical turbulators. Criterial equations for calculating of masstransfer coefficients and hydraulic flow resistance of plates were obtained. Criterial equations for a plate of 150 mm diameter were used in the calculation of industrial absorber with vortex plates of 1500 mm diameter in the production UAS commissioned by PA “Nitrogen” Rivne, Ukraine.