INVESTIGADORES
MAZZA German Delfor
artículos
Título:
A CFD Analysis of the Influence of Plenum Configurations on Gas Distribution in a Fluidized Bed
Autor/es:
JOSÉ M. SORIA; TATIANA AUSINA; GERMÁN D. MAZZA
Revista:
LATIN AMERICAN APPLIED RESEARCH
Editorial:
PLAPIQUI(UNS-CONICET)
Referencias:
Lugar: Bahia Blanca; Año: 2020 vol. 50 p. 83 - 88
ISSN:
0327-0793
Resumen:
Abstract-- Fluidized beds are widely used in many industries. The fluidizationquality of these units is strongly related to the characteristics of the plenumand distributor (grid). In this work, the effect of different plenumgeometries, and gas entrance sizes and locations on the velocity profile abovethe distributor was analyzed by Computational Fluid Dynamics (CFD). The resultsshowed that flow uniformity above the distributor improved with an increase inthe gas inlet diameter and the plenum height. Channeling was observed for thebottom central inlet. Additionally, simulations for plenum heights predicted byone of the frequently usedcorrelations (Litz correlation) were also carried out and showed,especially for a bottom central gas inlet, a poor quality flow distribution.This behavior indicated that Litz correlation tends to underestimate the plenumheight for obtaining a uniform flow downstream the distributor.
