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Type: Artigo de periódico
Title: The cyclonic dryer: a numerical and experimental analysis of the influence of geometry on average particle residence time
Author: Corrêa, J. L. G.
Graminho, D. R.
Silva, M. A.
Nebra, S. A.
Abstract: Particle residence time is an extremely important variable in a cyclonic dryer project. With the goal of obtaining a device that conduces to a long particle residence time, the influence of cyclone dimensions on particle residence time and on the type of flow is discussed here. The research was based on a device with a very high ratio of cyclone diameter to other dimensions. Simulations were developed with computational fluid dynamics techniques by the use of the commercial code CFX 4.4® of AEA Technology. Particles were treated individually. The fit of a turbulence model was also discussed. Theoretical and experimental results showed that the dimensions of the conical part of the cyclone had a very important influence on flow and consequently on particle residence time. The influences of volumetric concentration and particle diameter on particle residence time were also observed.
Subject: cyclone
particle residence time
Editor: Brazilian Society of Chemical Engineering
Rights: aberto
Identifier DOI: 10.1590/S0104-66322004000100011
Date Issue: 1-Jan-2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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