The prediction of particle cluster properties in the near wall region of a vertical riser (200157)

被引:192
作者
Harris, AT
Davidson, JF
Thorpe, RB
机构
[1] Univ Cambridge, Dept Chem Engn, Cambridge CB2 1RA, England
[2] Univ Surrey, Dept Chem & Proc Engn, Guildford GU2 7XH, Surrey, England
基金
英国工程与自然科学研究理事会;
关键词
circulating fluidised bed; two-phase flow; core-annulus flow; cluster; wall layer; fluidisation;
D O I
10.1016/S0032-5910(02)00114-6
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Correlations for predicting the properties of clusters of particles travelling near the riser wall are presented. The correlations were developed from experimental data published in the literature on vertical risers ranging from laboratory to industrial scale. Expressions are presented for predicting the size, shape, density, wall film coverage and velocity of particle clusters. These expressions should prove useful in the development of heat transfer and process models for gas-solid riser flow. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:128 / 143
页数:16
相关论文
共 80 条
[71]  
WU RL, 1989, THESIS U BRIT COLUMB
[72]   Analytical solution of the energy-minimization multi-scale model for gas-solid two-phase flow [J].
Xu, GW ;
Li, JH .
CHEMICAL ENGINEERING SCIENCE, 1998, 53 (07) :1349-1366
[73]  
YANG H, 1998, CIRCULATING FLUIDISE, V5, P72
[74]  
YERUSHALMI J, 1976, AICHE S SER, V74, P1
[75]  
ZETHRAEUS B, 1993, CIRCULATING FLUIDISE, V4, P738
[76]  
ZEVENHOVEN R, 1999, P 15 INT C FLUID BED
[77]   RADIAL VOIDAGE PROFILES IN FAST FLUIDIZED-BEDS OF DIFFERENT DIAMETERS [J].
ZHANG, W ;
TUNG, Y ;
JOHNSSON, F .
CHEMICAL ENGINEERING SCIENCE, 1991, 46 (12) :3045-3052
[78]  
ZHANG W, 1992, THESIS CHALMERS U TE
[79]   PARTICLE-VELOCITY PROFILES IN A CIRCULATING FLUIDIZED-BED RISER OF SQUARE CROSS-SECTION [J].
ZHOU, J ;
GRACE, JR ;
LIM, CJ ;
BRERETON, CMH .
CHEMICAL ENGINEERING SCIENCE, 1995, 50 (02) :237-244
[80]   CLUSTER STRUCTURE IN A CIRCULATING FLUIDIZED-BED [J].
ZOU, B ;
LI, HZ ;
XIA, YS ;
MA, XH .
POWDER TECHNOLOGY, 1994, 78 (02) :173-178