A1 Journal article (refereed), original research

Practical characterization and modeling method for macroscopic gas–solid flow in circulating fluidized bed


Open Access publication

Publication Details
Authors: Ritvanen Jouni, Chechurin Yegor, Hyppänen Timo
Publisher: Elsevier
Publication year: 2020
Language: English
Related Journal or Series Information: Chemical Engineering Journal
Journal acronym: Chem Eng J
ISSN: 1385-8947
eISSN: 1873-3212
JUFO-Level of this publication: 3
Open Access: Open Access publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe2020112492762

Abstract

Fluidized beds are common in the energy and chemical industries because they provide a good environment for heterogeneous reactions owing to the combination of mixing and multiphase flow hydrodynamics. The hydrodynamics of gas–solid suspensions in fluidized beds is extremely complicated and requires accurate study. A wide range of simulation approaches have been used in fluidized bed design and operational studies, but it is still not clear how the phase interaction should be treated. In this study, a practical characterization method and modeling tool for gas–solid flows are presented, along with a definition of the phase interaction. In this method, the phase interaction is derived for a real solid material with specific particle size, shape and density distributions. In addition, a macroscopic 1D modeling tool for gas–solid flow that is capable of practical stationary and transient simulations is presented. This tool solves the governing equation for the solid-phase momentum and provides physical predictions for transient gas–solid flow investigations. The proposed characterization method and modeling tool are validated against experimental data.


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Last updated on 2020-30-11 at 10:45