Publication

Acoustic and visual study of bubble formation processes in bubble columns staged with fibrous catalytic layers

Albert Renken, Lioubov Kiwi
2003
Journal Articles

Abstract

High-speed images of bubbly flow coupled with simultaneous passive acoustic measurements were carried out in a bubble column staged with structured fibrous catalysts. Local observations made with a high-speed camera system allow a detailed understanding of the influence of fabric structure on bubble formation processes and the detn. of the Sauter bubble diam. With acoustic measurements, the building frequency of bubble swarm formation is identified to be a linear function of the superficial gas velocity. Due to bubble size and building frequency of bubble swarm the percentage of simultaneously operative sites (holes at which bubbles were formed simultaneously) is calcd. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/908d1d5b-a899-434a-a0ad-bc38e5348f1d

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Albert Renken, Lioubov Kiwi
2003
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/908d1d5b-a899-434a-a0ad-bc38e5348f1d

About this result

Related concepts (30)

Ultra high frequency

Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter (one decimeter). Radio waves with frequencies above the UHF band fall into the super-high frequency (SHF) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands.

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Acoustic and visual study of bubble formation processes in bubble columns staged with fibrous catalytic layers

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