In this paper, Dale Snider presents the MP-PIC method, the Eulerian-Lagrangian method upon which Barracuda Virtual Reactor is based, for dense particle flow.
Explicit equations are developed for the drag coefficient and for the terminal velocity of falling spherical and non-spherical particles.
Inclined, intermittent jets can be used to feed solids into fluidized beds. In this report the injection system was successfully modeled.
Non-mechanical valves, especially the L-valves, have been used extensively in fluidized beds and circulating fluidized beds for solids recycling or to serve as a pressure seal. This paper presents a set of L-valve equations which relate the solids flow rate to the L-valve design, aeration rate, and pressure drop across the L-valve.
Accurate predictions of both the flux and size distribution of the solids entrained above the transport disengaging height of a fluidized bed are necessary. A new correlation was developed to calculate size distribution and flux of entrained particles.
In this paper, to investigate the effects of particle properties on these meso-scale structures, for all particle types, two-fluid modeling with and without consideration of meso-scale structures were performed and compared.
Gas/particle flow behavior in the riser section of a circulating fluidized bed (CFB) was simulated using a computational fluid dynamics (CFD) package by Fluent. Gas and particle flow profiles were obtained for velocity, volume fraction, pressure, and turbulence parameters for each phase.
In this work, a selection of widely used correlations have been critically evaluated for estimating the drag coefficient of non-spherical particles in incompressible viscous fluids.
The flow of gas—particle mixtures in a circulating fluidized bed has been studied, probing the flow behavior under both stable and unstable operating conditions.
Chemical Reaction Engineering, Third Edition, by Octave Levenspiel, helps students learn how to answer reactor design questions reliably and effectively.