Minimising microbubble size through oscillation frequency control

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00452201" target="_blank" >RIV/61388998:_____/15:00452201 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cherd.2015.08.002" target="_blank" >http://dx.doi.org/10.1016/j.cherd.2015.08.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cherd.2015.08.002" target="_blank" >10.1016/j.cherd.2015.08.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Minimising microbubble size through oscillation frequency control

Popis výsledku v původním jazyce

The high surface to volume ratio of microbubbles enables them to enhance transport phenomena and therefore can be used to reduce energy demands in many applications including, waste water aeration, froth flotation, oil emulsion separations and evaporation dynamics. Microbubbles can be produced by passing a gas stream through a micro-porous aerator. Previous work has shown that oscillating the gas stream can reduce the bubble size. This paper shows that it is possible reduce microbubble size by varying the frequency of the oscillating gas supply. Three different microbubble generation systems have been investigated: an acoustic oscillation system and a mesh membrane, a fluidic oscillator coupled to a single orifice membrane and a fluidic oscillator coupled to a commercially available ceramic diffuser. In all three methods there is an optimum oscillation frequency. In some cases a reduction in bubble size of up to 73% was achieved compared with non-optimal operating frequencies. The freq

Název v anglickém jazyce

Minimising microbubble size through oscillation frequency control

Popis výsledku anglicky

The high surface to volume ratio of microbubbles enables them to enhance transport phenomena and therefore can be used to reduce energy demands in many applications including, waste water aeration, froth flotation, oil emulsion separations and evaporation dynamics. Microbubbles can be produced by passing a gas stream through a micro-porous aerator. Previous work has shown that oscillating the gas stream can reduce the bubble size. This paper shows that it is possible reduce microbubble size by varying the frequency of the oscillating gas supply. Three different microbubble generation systems have been investigated: an acoustic oscillation system and a mesh membrane, a fluidic oscillator coupled to a single orifice membrane and a fluidic oscillator coupled to a commercially available ceramic diffuser. In all three methods there is an optimum oscillation frequency. In some cases a reduction in bubble size of up to 73% was achieved compared with non-optimal operating frequencies. The freq

Druh

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

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Research and Design

ISSN

0263-8762

e-ISSN

—

Svazek periodika

104

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

357-366

Kód UT WoS článku

000367629900032

EID výsledku v databázi Scopus

2-s2.0-84955464797