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Proceedings Paper

Imaging bottom zone of fluidized beds by electrical capacitance tomography
Author(s): Shi Liu; Wuqiang Yang; H. G. Wang; F. Jiang
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Paper Abstract

It is difficult to know the details of material distribution in a fluidised bed. Electrical capacitance tomography (ECT) technology has been developed for imaging industrial processes containing dielectric materials. This paper discusses the principles of ECT and presents the first experimental results of using ECT to measure gas/solids distribution in square circulating fluidised beds (CFB). A wide range of fluidisation conditions was tested, from bubbling to circulating fluidisation. It has been shown that over the range, ECT can provide solids concentration and voids distribution instantaneously. Different fluidisation regimes could also be identified from the reconstructed images.

Paper Details

Date Published: 2 February 2001
PDF: 6 pages
Proc. SPIE 4188, Process Imaging for Automatic Control, (2 February 2001); doi: 10.1117/12.417169
Show Author Affiliations
Shi Liu, Institute of Engineering Thermophysics (China)
Wuqiang Yang, Univ. of Manchester Institute of Science and Technology (United Kingdom)
H. G. Wang, Institute of Engineering Thermophysics (China)
F. Jiang, Institute of Engineering Thermophysics (China)

Published in SPIE Proceedings Vol. 4188:
Process Imaging for Automatic Control
Hugh McCann; David M. Scott, Editor(s)

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