Hydrodynamic Characteristics of Mechanically Agitated Air - Aqueous Sucrose Solutions

• Authors: Magdalena Cudak
• Languages of publication: EN

Abstracts

EN

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)).

Keywords

EN

agitated vessel; aqueous solutions of sucrose; gas hold-up; power consumption

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2014
• Volume: 35
• Issue: 1
• Pages: 97-107

Dates

published

1 - 3 - 2014

received

22 - 10 - 2013

online

25 - 4 - 2014

accepted

5 - 2 - 2014

Contributors

author

Magdalena Cudak

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

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Identifiers

DOI

10.2478/cpe-2014-0007