NEW METHODS OF CALCULATING THE PATTERNS OF OXYGEN MASS TRANSFER PROCESSES IN DYNAMIC WATER–AIR DISPERSE SYSTEMS

The paper presents the results of analysis of the main existing theories of oxygen mass transfer in dynamic water– air disperse systems. A theoretical model has been developed for the process of oxygen mass transfer, making it possible to account for the eff ect of deformation of air bubbles rising in turbulent regimes. A new calculation procedure has been proposed for the process of oxygen mass transfer developed on the basis of hydrodynamic characteristics of air bubble fl oating regimes. The use of obtained mathematical dependences will make it possible to take into account the eff ects of geometric parameters of air bubbles with a changed shape rising in turbulent regimes and, on this basis, to achieve higher accuracy of identifying technological characteristics of mass transfer processes.
   
Author:  S. Yu. Andreev, M. I. Yakhkind, and K. V. Lebedinskii
Keywords:  air bubble, disperse system, oxygen mass transfer, fl oating regimes, diff usion coeffi cient, oxidizing capacity
Page:  230