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Cold modelling studies of fluidised bed reactors

✍ Scribed by R. Di Felice; S. Rapagna; P.U. Foscolo; L.G. Gibilaro

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 436 KB
Volume: 47
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(92)87040-w

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✦ Synopsis

Experiments performed on pairs of dynamically similar gas-fluidised beds co&ii the validity of scaling relationships, based on purely fluid-dynamic interactions, to bubbling regime behaviour over a wider range of conditions than hitherto reported: ranging from fine powder (Geldart group A), to large particle (Geldart group D) systems. The scaling relationships. bowever. fail to explain observed slugging regime characteristics, thereby supporting the view that slugging involves a degree of defluidisation, and hence direct frictional interaction between particles.

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