The expansion of gas-fluidised beds in bubbling fluidisation

D. J. Gunn; N. Hilal

doi:10.1016/S0009-2509(97)00051-1

The expansion of gas-fluidised beds in bubbling fluidisation

D. J. Gunn, N. Hilal

Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The expansion of gas-fluidised beds has been examined in the range of Archimedes number from 100 to 10⁵ using five grades of glass ballotini and two grades of lead shot of narrow size distribution, and Diakon particles of wide size distribution. A porous plastic distributor plate was used in beds of diameters 89 and 290 mm. Power law and exponential correlations of the expansion were examined. All of the experimental data were correlated within experimental error by the equation. The dimensionless group U(*) not apparently considered elsewhere, is defined as U(t)(p/μg)¹/³ where U(t) is the particle terminal velocity.

Original language	English (US)
Pages (from-to)	2811-2822
Number of pages	12
Journal	Chemical Engineering Science
Volume	52
Issue number	16
DOIs	https://doi.org/10.1016/S0009-2509(97)00051-1
State	Published - Aug 1997

Keywords

Bubbling
Expansion
Fluidisation
Solids holdup

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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10.1016/S0009-2509(97)00051-1

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abstract = "The expansion of gas-fluidised beds has been examined in the range of Archimedes number from 100 to 105 using five grades of glass ballotini and two grades of lead shot of narrow size distribution, and Diakon particles of wide size distribution. A porous plastic distributor plate was used in beds of diameters 89 and 290 mm. Power law and exponential correlations of the expansion were examined. All of the experimental data were correlated within experimental error by the equation. The dimensionless group U(*) not apparently considered elsewhere, is defined as U(t)(p/μg)1/3 where U(t) is the particle terminal velocity.",

keywords = "Bubbling, Expansion, Fluidisation, Solids holdup",

author = "Gunn, {D. J.} and N. Hilal",

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AB - The expansion of gas-fluidised beds has been examined in the range of Archimedes number from 100 to 105 using five grades of glass ballotini and two grades of lead shot of narrow size distribution, and Diakon particles of wide size distribution. A porous plastic distributor plate was used in beds of diameters 89 and 290 mm. Power law and exponential correlations of the expansion were examined. All of the experimental data were correlated within experimental error by the equation. The dimensionless group U(*) not apparently considered elsewhere, is defined as U(t)(p/μg)1/3 where U(t) is the particle terminal velocity.

KW - Bubbling

KW - Expansion

KW - Fluidisation

KW - Solids holdup

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The expansion of gas-fluidised beds in bubbling fluidisation

Abstract

Keywords

ASJC Scopus subject areas

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