Keywords
paddle stirrer
gas content
interfacial surface
mass transfer coefficient
dispersion method
How to Cite
Abstract
A new method of gas-to-liquid dispersion has been developed, which allows improving the known designs of gas-liquid bioreactors and constructing new ones. Experimental data on gas content, interfacial surface, mass transfer coefficient value obtained in the apparatus with diameter of 0.28 m and 0.54 m are presented. Investigations were carried out on air-water system, aqueous solutions of sucrose, glycerin at different concentrations and surface active substances. The dependences of the stirrer power criterion on gas content and Reynolds number, as well as the mass transfer coefficient on the interfacial surface and energy dissipation were established. It is established that when calculating the dissipation of energy spent on the creation of the interfacial surface it is necessary to take into account the influence of viscous friction forces in the liquid.
References
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