Non-invasive imaging of shallow bubble columns using electrical capacitance tomography
Joint Authors
al-Misri, Wahid A.
Ali, Imad M.
al-Shubayli, Salih A.
Musa, Fuad M.
Source
Journal of Saudi Chemical Society
Issue
Vol. 14, Issue 3 (30 Sep. 2010), pp.269-280, 12 p.
Publisher
Publication Date
2010-09-30
Country of Publication
Saudi Arabia
No. of Pages
12
Main Subjects
Abstract EN
This paper deals with application of non-invasive electrical capacitance tomography to study the hydrodynamics of shallow bed bubble columns.
Two bubble columns with different height to diameter ratio were used.
Air-kerosene system that represents dielectric two-phase mixture was investigated.
The ECT provided good measurement of the gas holdup at different gas velocities compared to the classical pressure measurements.
The ECT was able to provide the gas hold up and the bubble velocities distribution across the column diameter at different gas velocities.
The study revealed that spatial gas holdup and bubble velocity distributions are sharp with parabolic shape in the small bubble column (Hn / Dc = 5).
However, in the large bubble column (Hn / Dc = 4) the gas holdup and bubble velocity profiles were flatter indicating improvement in the mixing homogeneity and leading to well-mixed reactor.
3D graphical visualization of the flow regimes and transition points were also examined using the ECT.
In the small bubble column flow regimes were heterogeneous to slugs flow especially at high flow rate, resulted in downward flow near the walls and imperfect mixing.
American Psychological Association (APA)
al-Misri, Wahid A.& Ali, Imad M.& al-Shubayli, Salih A.& Musa, Fuad M.. 2010. Non-invasive imaging of shallow bubble columns using electrical capacitance tomography. Journal of Saudi Chemical Society،Vol. 14, no. 3, pp.269-280.
https://search.emarefa.net/detail/BIM-250534
Modern Language Association (MLA)
al-Misri, Wahid A.…[et al.]. Non-invasive imaging of shallow bubble columns using electrical capacitance tomography. Journal of Saudi Chemical Society Vol. 14, no. 3 (Sep. 2010), pp.269-280.
https://search.emarefa.net/detail/BIM-250534
American Medical Association (AMA)
al-Misri, Wahid A.& Ali, Imad M.& al-Shubayli, Salih A.& Musa, Fuad M.. Non-invasive imaging of shallow bubble columns using electrical capacitance tomography. Journal of Saudi Chemical Society. 2010. Vol. 14, no. 3, pp.269-280.
https://search.emarefa.net/detail/BIM-250534
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 280
Record ID
BIM-250534