Modelování ustálené hodnoty intenzity toku permeátu při intenzifikované mikrofiltraci založené na střihovém napětí

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F04%3A00001557" target="_blank" >RIV/00216275:25310/04:00001557 - 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

Shear Stress-based Modelling of Steady State Permeate Flux in Microfiltration Enhanced by Two-phase Flows

Popis výsledku v původním jazyce

Crossflow microfiltration experiments without intensification and with two-phase gas-liquid flow were performed on aqueous titanium dioxide dispersions using an alumina tubular membrane. The influence of gas flow velocity on flux was studied. The empirical model for steady state permeate flux and cake thickness prediction was developed. The results of experiments show positive effects of constant gas-liquid two-phase flow on the flux. It was found that there are no operating conditions at which air injection has no effect on the permeate flux. From analysis of the experimental results without gas flow, the empirical model based on Darcy's Law and on mass balance over a membrane module was derived. The model is based on dimensionless numbers regressionof all basic operating conditions that influence permeate flux and cake thickness. The results showed good agreement between model prediction and experimental data with gas injection tested on the same apparatus. When the data from a diff

Název v anglickém jazyce

Shear Stress-based Modelling of Steady State Permeate Flux in Microfiltration Enhanced by Two-phase Flows

Popis výsledku anglicky

Crossflow microfiltration experiments without intensification and with two-phase gas-liquid flow were performed on aqueous titanium dioxide dispersions using an alumina tubular membrane. The influence of gas flow velocity on flux was studied. The empirical model for steady state permeate flux and cake thickness prediction was developed. The results of experiments show positive effects of constant gas-liquid two-phase flow on the flux. It was found that there are no operating conditions at which air injection has no effect on the permeate flux. From analysis of the experimental results without gas flow, the empirical model based on Darcy's Law and on mass balance over a membrane module was derived. The model is based on dimensionless numbers regressionof all basic operating conditions that influence permeate flux and cake thickness. The results showed good agreement between model prediction and experimental data with gas injection tested on the same apparatus. When the data from a diff

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

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Svazek periodika

Neuveden

Číslo periodika v rámci svazku

97

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

257-263

Kód UT WoS článku

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EID výsledku v databázi Scopus

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