23 research outputs found
Effects of binary particle size distribution on the fluid dynamic behavior of fluidized, vibrated and vibrofluidized beds
Models for mixing in stirred vessels
A generally applicable model for mixing in stirred vessels
is derived; it is based on the flow patterns and internal
circulation rates produced by the impeller which behaves as a
submerged pump.
The model is solved by means of a new and powerful numerical
technique which can be applied to mixing models consisting of any
configuration of well mixed stages; it is based on a probabilistic
treatment of an ideal mixing stage and leads to a flexible, easy
to use and efficient computer programme.
The truncated moments, a set of easily measureable and
model - independent parameters, are suggested for the
characterisation of dynamic responses; the first of these
moments provides a measure of the most significant features of
the proposed model and, for certain applications, gives a,direct
indication of the optimal mode of operation.
A simplified version of the general model is shown to fit
three quite different turbine stirred systems over a wide range of operating conditions
The experimental determination of the interaction force on spheres submerged in liquid fluidized beds
HOPPING MODEL FOR RESIDENCE TIME DISTRIBUTIONS OF SYSTEMS WITH SPLITTING AND MERGING STREAMS.
AIChE Journal312327-329AICE