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Gas hold-up and bubble diameters in a gassed oscillatory baffled column

Oliveira, Monica and Ni, X. (2001) Gas hold-up and bubble diameters in a gassed oscillatory baffled column. Chemical Engineering Science, 56 (21-22). pp. 6143-6148. ISSN 0009-2509

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    Abstract

    In this paper attempts are made to address how bubble behaviour in a batch oscillatory ba'ed column (OBC) contributes to the overall measured enhancement in mass transfer. A CCD camera is used to measure the bubble size distribution and the gas hold-up in the OBC. The experimental results of Sauter mean diameter and gas hold-up are correlated as a function of the power dissipation and superficial gas velocity, in order to allow for comparisons with published correlations for the mass transfer coefficient. In general, an increase in the oscillatory velocity causes an increase in the hold-up and a decrease in the Sauter mean diameter. Furthermore, we are able to show that the changes in the gas hold-up contribute more than the mean bubble size to the control of the mass transfer coefficient.

    Item type:Article
    ID code:44238
    Keywords:oscillatory ba'ed column , bubble size distribution, mean bubble size, mass transfer, Mechanical engineering and machinery, Chemical engineering, Chemical Engineering(all), Chemistry(all), Applied Mathematics, Industrial and Manufacturing Engineering
    Subjects:Technology > Mechanical engineering and machinery
    Technology > Chemical engineering
    Department:Faculty of Engineering > Mechanical and Aerospace Engineering
    Technology and Innovation Centre > Advanced Engineering and Manufacturing
    Depositing user: Pure Administrator
    Date deposited:27 Jun 2013 14:28
    Last modified:24 May 2019 02:27
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/44238
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