DETERMINATION OF MINIMUM FLUIDIZATION VELOCITY BY THE STATISTICAL-ANALYSIS OF PRESSURE-FLUCTUATIONS IN A GAS SOLID FLUIDIZED-BED

被引：40

作者：

HONG, SC ^{[1
]}

JO, BR ^{[1
]}

DOH, DS ^{[1
]}

CHOI, CS ^{[1
]}

机构：

[1] SOGANG UNIV,DEPT CHEM ENGN,SEOUL 121742,SOUTH KOREA

来源：

POWDER TECHNOLOGY | 1990年 / 60卷 / 03期

关键词：

D O I：

10.1016/0032-5910(90)80121-E

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The pressure fluctuations in a gas-solid fluidized bed were measured by a differential pressure transducer (DPT). It was found from this study that the measuring height on the axis of a bed was a very important factor for the determination of minimum fluidization velocity from the linear relationship between standard deviation and air velocity. That is, the linearity between two parameters is strongly dependent on the distance above the distributor, because the pressure fluctuations are influenced by the jet formed at the distributor and the bubble coalescence, which depend on particle size and air velocity. © 1990.

引用

页码：215 / 221

页数：7

共 13 条

[1]

BENDAT JS, 1971, RANDOM DATA ANAL MEA

[2] ONSET OF FLUIDIZATION AND SLUGGING IN BEDS OF UNIFORM PARTICLES [J].