Journal ArticleDOI
Segregation and mixing in liquid fluidized beds
A.K.A. Juma,J.F. Richardson +1 more
TLDR
In this paper, a model for solid mixing, based on the combined effects of diffusive and convective mechanisms, has been used in conjunction with the experimental resumption of lead glass spherical particles.About:
This article is published in Chemical Engineering Science.The article was published on 1983-01-01. It has received 76 citations till now. The article focuses on the topics: Mixing (process engineering).read more
Citations
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Journal ArticleDOI
Hydrodynamics of liquid fluidisation
TL;DR: Theoretical and empirical approaches to the fluid dynamic description of liquid fluidized beds are reviewed, together with the relevant experimental evidence as mentioned in this paper, with one section devoted to binary-solid systems, the particles differing in size and/or in density.
Journal ArticleDOI
Recent developments in solids mixing
L.T. Fan,Yi-ming Chen,F.S. Lai +2 more
TL;DR: A review of the major development in solids mixing since 1976 can be found in this paper, where the publications on the subject have been divided into three major categories: characterization of states of solids mixtures, rates and mechanisms of solid mixing processes, and design and scale up of mixers or blenders.
Journal ArticleDOI
A predictive model for the equilibrium composition and inversion of binary-solid liquid fluidized beds
TL;DR: In this paper, the concept of complete segregation of a binary-solid particulate fluidized bed is generalized to accommodate cases where the bottom zone contains an equilibrium mixture of the two solid components.
Journal ArticleDOI
CFD modeling of solid–liquid fluidized beds of mono and binary particle mixtures
TL;DR: In this article, the authors used the drag law of Joshi and Pandit and Joshi [1983] to predict the critical velocity at which the complete mixing of the two particle species occurs.
Journal ArticleDOI
Prediction of complete mixing of liquid-fluidized binary solid particles
TL;DR: In this paper, a theoretical model to predict relationships between the bulk composition and the critical velocity for complete mixing is developed on the basis of momentum equations for each particle component, independently given from a unit cell model with assumptions of creeping flow around the particle within the fictitious spherical cell and of a potential flow outside the cell.
References
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Journal ArticleDOI
A generalized approach to the fluid dynamics of particulate systems: Part 1. General correlation for fluidization and sedimentation in solid multiparticle systems
E. Barnea,J. Mizrahi +1 more
TL;DR: In this paper, the relative velocity between a cloud of spherical solid particles and the continuous fluid was studied and a critical review of previous publications on the relative velocities between the cloud and the fluid was presented.
Journal ArticleDOI
A New Method for Minimising a Sum of Squares without Calculating Gradients
TL;DR: A new method for minimising a sum of squares of non-linear functions is described and is shown to be more efficient than other methods in that fewer function values are required.
Journal ArticleDOI
Solids movement in liquid fluidised beds—II Measurements of axial mixing coefficients
C.R. Carlos,J.F. Richardson +1 more
TL;DR: In this paper, the axial mixing coefficients for glass spheres 0·9 cm dia. fluidised by dimethyl phthalate have been determined, and the results have been compared with those obtained from Brownian motion theory and from the kinetic theory.
Journal ArticleDOI
Grundlagen der Wirbelschichtverfahren
TL;DR: In this article, the authors describe the Grose des Druckabfalles in Wirbelschichten, die minimalen und maximalen Geschwindigkeiten, bei denen eine Wirbelbelbewegung noch bestandig ist, and uber die Schichtausdehnung infolge der Wirthschicht des gekornten Gutes.