Title

Evaluation of the Dimensionless Groups Based Scale-Up of Gas-Solid Spouted Beds

Abstract

In this work, the scale-up methodology of He et al. (1997) that is based on maintaining similar or close dimensionless groups in gas-solid spouted beds has been evaluated. Two geometrically similar spouted beds of 0.152 m and 0.076 m diameter have been used. It has been demonstrated experimentally, that there is non-similarity in the local hydrodynamic parameters such as solids holdup and dimensionless solids velocity, when all the dimensionless groups have been matched or close to each other in the two studied spouted beds. This confirms that the global hydrodynamic parameters should not be used to confirm the validity of or to evaluate the dimensionless groups scale-up based methodologies.

Department(s)

Chemical and Biochemical Engineering

Keywords and Phrases

Fluid Dynamics; Dimensionless Groups; Hydrodynamic Parameters; Local Hydrodynamics; Scale-Up; Solids Holdups; Spouted Bed; Hydrodynamics; Gas-Solid Spouted Bed

International Standard Serial Number (ISSN)

0301-9322

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Elsevier, All rights reserved.

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