Measurement of particle velocities in conical spouted beds using an optical fiber probe

被引：67

作者：

Olazar, M ^{[1
]}

San Jose, MJ ^{[1
]}

Alvarez, S ^{[1
]}

Morales, A ^{[1
]}

Bilbao, J ^{[1
]}

机构：

[1] Univ Basque Country, Dept Ingn Quim, E-48080 Bilbao, Spain

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1998年 / 37卷 / 11期

关键词：

D O I：

10.1021/ie9800243

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The vertical components of particle velocities in the spout and annular zones of conical spouted beds have been experimentally determined for different values both of contactor geometric factors (angle and air inlet diameter) and of operating conditions (particle diameter, stagnant bed height, and air velocity) by means of an optical fiber probe. Based on the effect of the operating variables on the longitudinal and radial profiles of the particle velocities, a correlation has been determined for their calculation at any position in the spout zone. The correlation proposed by Nemeth and Pallai for the calculation of the average particle velocity at the wall in cylindrical spouted beds has been proven to be valid in conical spouted beds.

引用

页码：4520 / 4527

页数：8

共 40 条

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Abdelrazek I.D., 1969, THESIS U TENNESSEE K

[2] AN INVESTIGATION OF LAWS GOVERNING THE SPOUTING OF COARSE PARTICLES [J].