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The computational-fluid-dynamics study of an unbaffled stirred vessel with eccentrically positioned impeller

100%

Wójtowicz R., Lipin A. A.

Czasopismo Techniczne

The paper presents the results of CFD simulations of liquid flow in an unbaffled stirred vessel with an eccentrically positioned impeller. The influence of the impeller’s distance from the tank axis (eccentricity) on the generated flow circulation was analyzed. Based on numerical modelling, the flow pattern, vortex formation as well as turbulence parameters in selected stirred vessel zones were determined. Obtained results were presented as vector/contour maps, and iso-surfaces of Q-criterion for identification of vortex cores. Additionally, for each investigated stirred vessel power consumption was calculated.

Modeling the combined polymerization and drying of polyacrylamide prepolymer

81%

Lipin A. A., Lipin A. G., Wójtowicz R.

Czasopismo Techniczne

In the paper, the mathematical model of combined polymerisation and drying of polyacrylamide prepolymer is presented. It allows to predict the change of monomer conversion degree, polymer moisture content, the temperatures of gas and polymer in the dryer as well as dryer sizes. Using a developed model, values of technological parameters were established, providing faster polymerisation than in the case of drying.

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2 Czasopismo Techniczne

2 2016

2 Lipin A. A.

2 Wójtowicz R.

1 Lipin A. G.

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The computational-fluid-dynamics study of an unbaffled stirred vessel with eccentrically positioned impeller

Modeling the combined polymerization and drying of polyacrylamide prepolymer