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《Power Engineering》 2004-06
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Study on the Application of Electric Capacitance Tomography on the Measurement of Gas-Solid Two-Phase Flows in Fluidized Beds

JIANGFan~1,LIU Shi~1,WANG Hai-gang~1,YANG Wu-qiang~2 (1.Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080,China; 2.UMIST, Manchester M60 1QD, UK)  
Effects of electric capacitance tomography (ECT) sensors with rotating electrodes on image formation are studied. ECT sensors with rotational electrodes and the conventiol ECT sensors without rotational electodes were used respectively to simulate some typical gas-solid two-phase flow patterns,and the imaging results compared, which show that the images of the former are better than those of the latter. The ECT system was moreover applied to on-line measurement of the spatial distribution of solids in fluidized beds for studying purposes. The influence of air velocity upon gas/solid distribution in fluidized bed is compared and analyzed. The prospects of using ECT systems for on-line measurement and control of fluidized beds are promising.
【Fund】: 国家自然科学基金项目No.50076045;50276062
【CateGory Index】: TK229.6
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