Effect of the draft tube on mixing in the reactor with internal circulation loop ? CFD simulation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU110649" target="_blank" >RIV/00216305:26210/14:PU110649 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of the draft tube on mixing in the reactor with internal circulation loop ? CFD simulation

Popis výsledku v původním jazyce

Reactors with internal circulation loop are nowadays widely spread (extensively applied) in chemical industry, biochemical fermentation or biological wastewater treatment processes. Internal loop reactors consist of concentric draft tube, in which a gasbubbles rising up, and the downcomer in which the liquid is flowing downward. Size and diameter of the draft tube is of crucial importance reactor geometry parameters and together with number of the draft tubes has big effect on two phase hydrodynamics and mixing processes (mass transfer) inside the reactor. Present paper is divided onto the two parts. In the first part, the validation of selected mathematical model (mixed flow) is carried out. Results of experimental measurements (liquid velocity and gas hold-up) obtained on the laboratory scale reactor with internal circulation loop are compared with the CFD simulations. The CFD simulation (bubbly flow and mass transfer models) was made by COMSOL Multiphysics version 3.5a. The obtaine

Název v anglickém jazyce

Effect of the draft tube on mixing in the reactor with internal circulation loop ? CFD simulation

Popis výsledku anglicky

Reactors with internal circulation loop are nowadays widely spread (extensively applied) in chemical industry, biochemical fermentation or biological wastewater treatment processes. Internal loop reactors consist of concentric draft tube, in which a gasbubbles rising up, and the downcomer in which the liquid is flowing downward. Size and diameter of the draft tube is of crucial importance reactor geometry parameters and together with number of the draft tubes has big effect on two phase hydrodynamics and mixing processes (mass transfer) inside the reactor. Present paper is divided onto the two parts. In the first part, the validation of selected mathematical model (mixed flow) is carried out. Results of experimental measurements (liquid velocity and gas hold-up) obtained on the laboratory scale reactor with internal circulation loop are compared with the CFD simulations. The CFD simulation (bubbly flow and mass transfer models) was made by COMSOL Multiphysics version 3.5a. The obtaine

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.30.0039" target="_blank" >EE2.3.30.0039: Excelentní mladí vědci na VUT v Brně</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

21st International Congress of Chemical and Process Engineering CHISA 2014 and 17th Conference PRES 2014, Authors of papers

ISBN

978-80-02-02555-9

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

1-9

Název nakladatele

Neuveden

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

23. 8. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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