Imaging gas-solids distribution in cyclone inlet of circulating fluidised bed with rectangular ECT sensor

Author

Wang, Haigang ; Wang, Xiaofang ; Lu, Qinggang ; Sun, Yunkai ; Yang, Wuqiang

Author_Institution

Inst. of Eng. Thermophys., Chinese Acad. of Sci., Beijing, China

fYear

2011

fDate

17-18 May 2011

Firstpage

55

Lastpage

59

Abstract

A rectangular electrical capacitance tomography (ECT) sensor has been designed and used to measure the solids distribution in a cross-section in an inlet of cyclone separator for a supper-critical pressure circulating fluidised bed (CFB). The ECT sensor has twelve electrodes with two in each shorter side and four in each longer side. For image reconstruction, sensitivity maps have been calculated using a simulation package, Maxwell from Ansoft. Static test results are analysed in terms of standard deviation and image error. CFD simulation results for the solid distribution in the cyclone are given and future work for dynamics test of CFB processes with rectangular ECT sensor are given in the end of the paper.

Keywords

capacitive sensors; cyclone separators; fluidised beds; image reconstruction; cyclone inlet; cyclone separator; electrical capacitance tomography; image reconstruction; imaging gas-solids distribution; rectangular ECT sensor; sensitivity maps; supercritical pressure circulating fluidised bed; Boilers; Computational fluid dynamics; Cyclones; Electric potential; Electrodes; Particle separators; Solids; Cyclone separators; ECT; Fluidised bed; Rectangular sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Imaging Systems and Techniques (IST), 2011 IEEE International Conference on

Conference_Location

Penang

Print_ISBN

978-1-61284-894-5

Type

conf

DOI

10.1109/IST.2011.5962181

Filename

5962181