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Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F02%3A00081950" target="_blank" >RIV/67985858:_____/02:00081950 - 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

Gas?Liquid Mass Transfer to Single Bubbles: Effect of Surface Contamination.

Popis výsledku v původním jazyce

The dissolution of single bubbles of gases of low solubility kept stationary in a downward stream of water was studied. In "clean" water, two regimes are identified. Initially, the process is fast, consistent with the theory for circulating bubbles. Then, the masstransfer rate falls sharply to that predicted for solid spheres. Transition times and transition diameters ary widely with experimental conditions. In untreated water, only the second regime is found. Results are explained in terms of the kinetics of trace surfactant accumulation at the interface. An adaptation of the stagnant-cap model is proposed, with surface immobilization expressed in terms of interface dynamics. The model yields good prediction of the transition point for a ery large setof conditions, including different gases at various concentrations in the liquid stream and a wide range of initial bubble diameters.

Název v anglickém jazyce

Gas?Liquid Mass Transfer to Single Bubbles: Effect of Surface Contamination.

Popis výsledku anglicky

The dissolution of single bubbles of gases of low solubility kept stationary in a downward stream of water was studied. In "clean" water, two regimes are identified. Initially, the process is fast, consistent with the theory for circulating bubbles. Then, the masstransfer rate falls sharply to that predicted for solid spheres. Transition times and transition diameters ary widely with experimental conditions. In untreated water, only the second regime is found. Results are explained in terms of the kinetics of trace surfactant accumulation at the interface. An adaptation of the stagnant-cap model is proposed, with surface immobilization expressed in terms of interface dynamics. The model yields good prediction of the transition point for a ery large setof conditions, including different gases at various concentrations in the liquid stream and a wide range of initial bubble diameters.

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

2002

Kód důvěrnosti údajů

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

Název periodika

AIChE Journal

ISSN

0001-1541

e-ISSN

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Svazek periodika

48

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

1145-1154

Kód UT WoS článku

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EID výsledku v databázi Scopus

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