GAS-DISCHARGE MODES AT A SINGLE NOZZLE IN 2-DIMENSIONAL FLUIDIZED-BEDS

被引：17

作者：

HUANG, CC ^{[1
]}

CHYANG, CS ^{[1
]}

机构：

[1] CHUNG YUAN CHRISTIAN UNIV,DEPT CHEM ENGN,CHUNGLI,TAIWAN

来源：

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 1991年 / 24卷 / 05期

关键词：

FLUIDIZED BED; BUBBLING; JETTING; SPOUTING; PRESSURE FLUCTUATIONS;

D O I：

10.1252/jcej.24.633

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Bubbling, jetting and spouting as gas discharge modes at a single nozzle in a two-dimensional gas-fluidized bed with Group B particles were investigated by means of visual observation and spectral analysis of pressure fluctuations in the grid region. A bubble plume was observed with a frequency of bubble formation in the range 2-7 Hz. Empirical equations predicting the transitions of gas discharge modes were obtained. The flow regimes of gas discharge modes were mapped by using two parameters, the static bed height-to-nozzle diameter ratio and a modified two-phase Froude number.

引用

页码：633 / 639

页数：7

共 21 条

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