Application of Fast X-ray CT Scanner to Visualization of Bubbles in Fluidized Bed

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Ion Tiseanu¹  Naoki Ichikawa²  Takeshige Takahashi³  Takami Kai³  Naoki Takada²  Masaki Misawa¹ 

[1] Institute of Atomic Physics;Mechanical Engineering Laboratory, AIST;Department of Applied Chemistry and Chemical Engineering, Kagoshima University

关键词: Fluidization;    X-ray;    Tomography;    Visualization;    Bubble;   

DOI  :  10.1252/jcej.33.906

来源: Maruzen Company Ltd

【 摘 要 】

References(16)Cited-By(13)A fast-scanning X-ray CT system, designed for measuring dynamic events in multiphase fluids, was used to obtain the transient 2-dimensional cross sectional gas-phase distribution in a fluidized bed. The captured data was sent to a PC for image reconstruction, and the density distributions across the column cross section were visualized. Using image processing techniques, a pseudo 3-dimensional image of bubbles was obtained. The spatial and time resolutions of the system were sufficient for the measurement of ascending bubble behavior in a fluidized bed with fine particles. Bubble shape, interfacial area, and bubble holdup over the cross section can be measured by this system.

【 授权许可】

Unknown