Fluidic low-frequency oscillator with vortex spin-up time delay

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00441705" target="_blank" >RIV/61388998:_____/15:00441705 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cep.2015.02.001" target="_blank" >http://dx.doi.org/10.1016/j.cep.2015.02.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cep.2015.02.001" target="_blank" >10.1016/j.cep.2015.02.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fluidic low-frequency oscillator with vortex spin-up time delay

Popis výsledku v původním jazyce

The paper describes a fluidic oscillator developed for supplying microbubbles of CO2 to algae in photobioreactors. Having no moving parts and powered solely by the flow of the supplied gas, the oscillator can be made robust and reliable. The advantage itbrings is the flow can undergo a direction reversal during each cycle. Freshly made gas microbubbles together with some surrounding liquid thus can return into micropores of the aerator ? and subsequently be accelerated away from the aerator vicinity. This prevents microbubbles merging just after their formation, a phenomenon that so far has been the main obstacle in generation of very small bubbles. The oscillation mechanism is based on a switched inlet vortex amplifier combined with a relaxation process involving the spin-up time of the vortex flow. Experiments relate to design development, the back-and-forth outflow, frequency, and overall performance.

Název v anglickém jazyce

Fluidic low-frequency oscillator with vortex spin-up time delay

Popis výsledku anglicky

The paper describes a fluidic oscillator developed for supplying microbubbles of CO2 to algae in photobioreactors. Having no moving parts and powered solely by the flow of the supplied gas, the oscillator can be made robust and reliable. The advantage itbrings is the flow can undergo a direction reversal during each cycle. Freshly made gas microbubbles together with some surrounding liquid thus can return into micropores of the aerator ? and subsequently be accelerated away from the aerator vicinity. This prevents microbubbles merging just after their formation, a phenomenon that so far has been the main obstacle in generation of very small bubbles. The oscillation mechanism is based on a switched inlet vortex amplifier combined with a relaxation process involving the spin-up time of the vortex flow. Experiments relate to design development, the back-and-forth outflow, frequency, and overall performance.

Druh

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

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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 and Processing: Process Intensification

ISSN

0255-2701

e-ISSN

—

Svazek periodika

90

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

6-15

Kód UT WoS článku

000352177100002

EID výsledku v databázi Scopus

2-s2.0-84923091631