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2014 | 35 | 1 | 97-107

Article title

Hydrodynamic Characteristics of Mechanically Agitated Air - Aqueous Sucrose Solutions



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The aim of the research presented in this paper was determination of power consumption and gas hold-up in mechanically agitated aerated aqueous low concentration sucrose solutions. Experimental studies were conducted in a vessel of diameter 0.634 m equipped with high-speed impellers (Rushton turbine, Smith turbine or A 315). The following operating parameters were changed: volumetric gas flow rate (expressed by superficial gas velocity), impeller speed, sucrose concentration and type of impeller. Based on the experiments results, impellers with a modified shape of blades, e.g. CD 6 or A 315, could be recommended for such gas-liquid systems. Power consumption was measured using strain gauge method. The results of gas holdup measurements have been approximated by an empirical relationship containing dimensionless numbers (Eq. (2)).









Physical description


1 - 3 - 2014
22 - 10 - 2013
25 - 4 - 2014
5 - 2 - 2014


  • West Pomeranian University of Technology, Szczecin, Department of Chemical Engineering, al. Piastów 42, 71-065 Szczecin Poland


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