Magnetic Resonance Imaging of Fluidized Beds: Recent Advances

被引：12
|
作者：
Holland, D. J. [1 ]
Mueller, C. R. [1 ]
Sederman, A. J. [1 ]
Mantle, M. D. [1 ]
Gladden, L. F. [1 ]
Davidson, J. F. [1 ]
机构：
[1] Univ Cambridge, Dept Chem Engn, Cambridge CB2 3RA, England
来源：
THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2008年 / 42卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1134/S0040579508050011
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Recent developments in magnetic resonance (MR) imaging techniques give measurements of particle velocities and voidage fractions in a bubbling fluidized bed, with a spatial resolution of approximately 0.6 mm and a time resolution of approximately 2 ms. The particles contained liquid, whose mobile molecules have more favorable relaxation times (T-1, T-2 and T-2*), than for solids, facilitating rapid MR measurements. Seeds 0.5-2 mm in diameter containing oil and hollow, plastic spheres 1-10 mm in diameter filled with water were used.
引用
收藏
页码：469 / 478
页数：10
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