Investigation of Mixing in Tanks of a Special Geometry

Tarcsay, Bálint Levente and Egedy, Attila and Bobek, Janka and Rippel-Pethő, Dóra (2019) Investigation of Mixing in Tanks of a Special Geometry. Hungarian Journal of Industry and Chemistry, 47 (2). pp. 63-70. ISSN 0133-0276

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Abstract

Mixing is one of the most crucial processes in the chemical industry. Homogeneity is a requirement for all feedstocks and industrial products. The degree of mixing depends on the hydrodynamic properties of the fluid in the units. The Residence Time Distribution (RTD) was investigated in a tank of a special geometry. Mixing was investigated using various geometries of the tank by applying the Heaviside function in step-response experiments. After obtaining experimental results, the RTD function was calculated. The flow structure in the tank was approximated by fitting black-box transfer function models onto the RTD function of the system. Two general model structures were defined and their fitness compared. By evaluating the fitted models, a relationship was established between the flow structure in the tank and its geometry.

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