Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/919564

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Title
Imaging the pneumatic conveying particulate flow of a fly ash powder using electrical capacitance tomography
Author/Creator
Williams, K. C.;  Ma, A. C.;  Jones, M. G.;  Olszewski, T.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
Electrical Capacitance Tomography (ECT) can provide a non-invasive imaging capability for multiphase flows. This capability is achieved through detection of different dielectric permittivity levels obtained from variations in particulate concentration levels. This paper represents the ECT analysis on the dense flows of a fly ash powder within a 53mm ID pneumatic conveying pipeline. A twin plane, 12 electrode ECT system was used in the experiments. The twin plane ECT system provided a pixel image size of approximately 1.5 mm which was able to provide important information on the internal structure of the particulate flow, with the twin planes providing a velocity determination capability. Images of material pulse events were captured with material expansion occurring due to particle migration during the growth and decay of the pulses. Analysis of bulk density levels between 850 to 70 kg/m³ showed decreasing bulk density structure from the bottom to the top of the pipe.
Relation
8th World Congress of Chemical Engineering 2009: Incorporating the 59th Canadian Chemical Engineering Conference and the XXIV Interamerican Congress of Chemical Engineering. Proceedings of the 8th World Congress of Chemical Engineering 2009 (Montreal, Canada 23-27 August, 2009)
Relation
http://www.wcce8.org/index.html
Date
2009
Publisher
WCCE8
Keyword(s)
pneumatic conveying;  electrical capacitance tomography;  CFD
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/919564
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"Imaging the pneumatic conveying particulate flow of a fly ash powder using electrical capacitance tomography"
 
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