Analysis of liquid blending dynamics with Maxblend impellers by Electrical Resistance Tomography

• Autorzy: Iwasawa Suzuka , Kubo Honami , Takenaka Katsuhide , Pintus Sandro , Maluta Francesco , Montante Giuseppina , Paglianti Alessandro

Identyfikatory

DOI

10.24425/cpe.2021.138925

• Języki publikacji: EN

Abstrakty

EN

The aim of the investigation was liquid mixing time measurement in a laboratory scale stirred tank equipped with a metal Maxblend impeller and comparison with the corresponding mixing time obtained with other conventional impellers. The data are collected by Electrical Resistance Tomography, whose applicability in this case is non-trivial, because of the electrical interferences between the large paddles of the impeller and the measuring system. The raw data treatment methodology purposely developed for obtaining the homogenization dynamics curve is presented. A robust approach for a fine and low cost investigation of the mixing performances of close-clearance impellers in opaque systems is suggested. The analysis of the local and averaged conductivity time traces reveals the effect of important variables, such as the fluid viscosity and the vessel configuration, on the mixing time under various agitation conditions. The data collection and post processing procedures open the way to the application of the technique to multiphase and non-Newtonian fluids stirred with close-clearance impellers.

Słowa kluczowe

EN

maxblend impeller; mixing time; electrical resistance tomography; stirred tank

PL

wirnik; czas mieszania; tomografia oporności elektrycznej

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2021
• Tom: Vol. 42, nr 3
• Strony: 197--–207
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Iwasawa Suzuka

• Sumitomo Heavy Industries Process Equipment Co., Ltd. 1501, Imazaike, Saijo City, Ehime, Japan

autor

Kubo Honami

• Sumitomo Heavy Industries Process Equipment Co., Ltd. 1501, Imazaike, Saijo City, Ehime, Japan

autor

Takenaka Katsuhide

• Sumitomo Heavy Industries Process Equipment Co., Ltd. 1501, Imazaike, Saijo City, Ehime, Japan

autor

Pintus Sandro

• University of Pisa, Via Giunta Pisano 28, 56126 Pisa, Italy

autor

Maluta Francesco

• Department of Industrial Chemistry, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy

autor

Montante Giuseppina

• Department of Industrial Chemistry, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy

autor

Paglianti Alessandro

• Department of Industrial Chemistry, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy

Bibliografia

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