Minimum fluidization velocity at elevated temperature in tapered fluidized bed

被引：11

作者：

Sau, D. C. ^{[1
]}

Mohanty, Swati ^{[3
]}

Biswal, K. C. ^{[2
]}

机构：

[1] Natl Met Lab, Jamshedpur 831007, Jharkhand, India

[2] Inst Minerals & Mat Technol, Bhubaneswar 751013, Orissa, India

[3] Natl Inst Technol, Rourkela 769008, Orissa, India

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2008年 / 47卷 / 12期

关键词：

Minimum fluidization velocity; Tapered bed; Elevated temperatures; Gas-solid fluidization;

D O I：

10.1016/j.cep.2007.11.016

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Very little data of minimum fluidization velocity at elevated temperatures of tapered bed are available in the literature. This Study was undertaken to provide some data under elevated temperature conditions in tapered bed. Data on minimum fluidization velocity have been obtained experimentally for temperature up to 800 degrees C in case of 0.5 mm diameter of sand particles and up to 500 degrees C in case of 1 mm diameter of glass beads in tapered bed. An equation valid for the bed has been developed in terns of Archimedes number and Reynolds number The experimental values for minimum fluidization velocity at elevated temperatures have been compared with the calculated values obtained from present equation and from earlier equations developed by other authors for ambient conditions in conventional (cylindrical) bed and tapered bed. Fairly good agreement was found to exist between the calculated (from present equation) and the experimental values. (C) 2008 Published by Elsevier B.V.

引用

页码：2391 / 2394

页数：4

共 16 条

[1]

Agrawal S.K., 1988, INDIAN CHEM ENG, V30, P40

[2]

Babu S.P., 1978, AIChE Symposium Series, P176

[3] MINIMUM FLUIDIZATION VELOCITY AT ELEVATED-TEMPERATURES AND PRESSURES [J].