Abstract
One way of intensifying processes in multiphase systems is the use of self-priming aerating devices in reactors. The investigation of processes of hydrodynamics in the liquid phase, in particular the regularities of the change of power requirements for the mixing of gas-liquid systems, has not been treated sufficiently. The present article submits the results of the calculation of the expended power of an aerating device of optimum design. Investigations have shown that the power expended on the hydraulic resistances with developed turbulent flow of a homogeneous two-phase mixture is close to the power expended with flow of such a pure liquid whose density is equal to the mean density of the mixture. Since with intense mixing a gas is distributed evenly throughout the entire volume and since the size of the bubbles is small compared with the dimensions of the apparatus and the aerator mixer, the gas-liquid system in this case may be regarded as homogeneous. Being lower than the density of the liquid, the density of the gas is neglected. Equations are derived for obtaining the power required by an aerating device with different geometric dimensions.
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