STUDIES ON TRANSFER PROCESSES IN MIXING VESSELS - POWER-CONSUMPTION OF THE MODIFIED RUSHTON TURBINE AGITATORS IN GAS-LIQUID SYSTEM

In this work, data regarding the power consumption in a gas-liquid sys tem, using standard and modified Rushton turbine agitators, positioned singly or doubly on same shaft, were presented. The modified blades w ere obtained through the increase of the blade height of the Rushton t urbine, simultaneously with the surface discontinuation through the ap plication of perforations. The full surface of the modified blade is e qual to the witness blade surface of the Rushton turbine. The surface fraction of the perforations S-G/S-C is between 0-0.588. The empirical equations for the estimation of gassed power consumption, were expres sed depending on the stirrer speed, gas flow rate, geometry and number of the blades.