Prediction of power consumption and mass transfer in mechanically agitated fermenters, physical interpretation of experimental data.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F14%3A43897954" target="_blank" >RIV/60461373:22340/14:43897954 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.chisa.cz/2014/" target="_blank" >http://www.chisa.cz/2014/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Prediction of power consumption and mass transfer in mechanically agitated fermenters, physical interpretation of experimental data.

Popis výsledku v původním jazyce

In the industrial fermentation processes, most of the liquids are non-coalescent batches and few of them are coalescent. However, due to the limitations of most measurement methods, there is a lack of reliable data for predicting volumetric mass transfercoefficients (kLa) for non-coalescent batches under high dissipated energies. Our goal is to propose accurate kLa and power input (P) correlations for these conditions. Thus kLa was measured with the highly precise dynamic pressure method. Measurementswere conducted in a two phase multiple-impeller fermenter with a non-coalescent and coalescent batch under a wide range of conditions. The classic correlation for kLa is based on P and superficial gas velocity, but we found that when impeller tip speed is switched with P it improved the closeness of the correlation for non-coalescent batches. The data aggregated from different impellers showed that the impeller power number is a reliable predictor of kLa for most impeller types. We confi

Název v anglickém jazyce

Prediction of power consumption and mass transfer in mechanically agitated fermenters, physical interpretation of experimental data.

Popis výsledku anglicky

In the industrial fermentation processes, most of the liquids are non-coalescent batches and few of them are coalescent. However, due to the limitations of most measurement methods, there is a lack of reliable data for predicting volumetric mass transfercoefficients (kLa) for non-coalescent batches under high dissipated energies. Our goal is to propose accurate kLa and power input (P) correlations for these conditions. Thus kLa was measured with the highly precise dynamic pressure method. Measurementswere conducted in a two phase multiple-impeller fermenter with a non-coalescent and coalescent batch under a wide range of conditions. The classic correlation for kLa is based on P and superficial gas velocity, but we found that when impeller tip speed is switched with P it improved the closeness of the correlation for non-coalescent batches. The data aggregated from different impellers showed that the impeller power number is a reliable predictor of kLa for most impeller types. We confi

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 21st International Congress of Chemical and Process Engineering CHISA 2014

ISBN

978-80-02-02555-9

ISSN

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e-ISSN

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Počet stran výsledku

11

Strana od-do

1-11

Název nakladatele

Česká společnost chemického inženýrství

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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