Prediction of power consumption in mechanically agitated gassed reactor in viscous batch
Popis výsledku
Identifikátory výsledku
Kód výsledku v IS VaVaI
Výsledek na webu
https://www.degruyter.com/view/j/chempap.2016.70.issue-4/chempap-2015-0229/chempap-2015-0229.xml
DOI - Digital Object Identifier
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Prediction of power consumption in mechanically agitated gassed reactor in viscous batch
Popis výsledku v původním jazyce
Transport characteristics such as volumetric mass transfer coefficients, k(L)a, power input, P, gas hold-up, phi, and mixing time, t(m), are the key parameters in the design of mechanically agitated gas-liquid contactors. For their successful design, values of the key parameters can be estimated using empirical correlations. Power input in this case is very often used as the scale of energy dissipation for other characteristics. Our goal was to propose reliable power input correlations for viscous batch processes, which are widely used in industry. The measurements were carried out in a pilot-plant vessel and also results from a laboratory vessel were used to develop the correlations. Different types of impellers and their combinations were used, including radial, axial, and combined liquid flow impellers. The power input was measured in a multiple-impeller vessel at different impeller frequencies and several gas flow rates. Correlation equations describing the behavior of particular impellers were evaluated. In addition, separate correlations for the bottom and upper sections in the multiple-impeller vessel were presented. These correlations can be used for impeller power prediction in industrial scale vessels under a wide range of operational conditions. (C) 2015 Institute of Chemistry, Slovak Academy of Sciences
Název v anglickém jazyce
Prediction of power consumption in mechanically agitated gassed reactor in viscous batch
Popis výsledku anglicky
Transport characteristics such as volumetric mass transfer coefficients, k(L)a, power input, P, gas hold-up, phi, and mixing time, t(m), are the key parameters in the design of mechanically agitated gas-liquid contactors. For their successful design, values of the key parameters can be estimated using empirical correlations. Power input in this case is very often used as the scale of energy dissipation for other characteristics. Our goal was to propose reliable power input correlations for viscous batch processes, which are widely used in industry. The measurements were carried out in a pilot-plant vessel and also results from a laboratory vessel were used to develop the correlations. Different types of impellers and their combinations were used, including radial, axial, and combined liquid flow impellers. The power input was measured in a multiple-impeller vessel at different impeller frequencies and several gas flow rates. Correlation equations describing the behavior of particular impellers were evaluated. In addition, separate correlations for the bottom and upper sections in the multiple-impeller vessel were presented. These correlations can be used for impeller power prediction in industrial scale vessels under a wide range of operational conditions. (C) 2015 Institute of Chemistry, Slovak Academy of Sciences
Klasifikace
Druh
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CI - Průmyslová chemie a chemické inženýrství
OECD FORD obor
—
Návaznosti výsledku
Projekt
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Chemical Papers
ISSN
0366-6352
e-ISSN
—
Svazek periodika
70
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
SK - Slovenská republika
Počet stran výsledku
9
Strana od-do
461-469
Kód UT WoS článku
000379598300007
EID výsledku v databázi Scopus
2-s2.0-84959423043
Základní informace
Druh výsledku
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP
CI - Průmyslová chemie a chemické inženýrství
Rok uplatnění
2016