Imaging bottom zone of fluidized beds by electrical capacitance tomography

Shi Liu; Wuqiang Yang; H. G. Wang; F. Jiang

doi:10.1117/12.417169

2 February 2001 Imaging bottom zone of fluidized beds by electrical capacitance tomography

Shi Liu, Wuqiang Yang, H. G. Wang, F. Jiang

Proceedings Volume 4188, Process Imaging for Automatic Control; (2001) https://doi.org/10.1117/12.417169
Event: Intelligent Systems and Smart Manufacturing, 2000, Boston, MA, United States

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.

Citation Download Citation

Shi Liu, Wuqiang Yang, H. G. Wang, and F. Jiang "Imaging bottom zone of fluidized beds by electrical capacitance tomography", Proc. SPIE 4188, Process Imaging for Automatic Control, (2 February 2001); https://doi.org/10.1117/12.417169

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