Thesis-1997-Butt.pdf (23.34 MB)
Download fileCompressibility and channel formation in sedimenting systems
thesis
posted on 2017-10-20, 15:41 authored by Gareth ButtChannelling and compression in batch and continuous gravity sedimentation systems
have been investigated using an electrical impedance imaging technique. The
accuracy of such a system is shown to be a function of a number of variables, in particular particle morphology. Not all materials were found to be suitable to this
form of imaging. Three primary materials, aragonite, calcite and talc were used, each
exhibited random channelling, i.e. channel formation was not due to the presence of
foreign bodies or externally induced. Channels in this type of channelling form within
a zone which grows and propagates upwards into a suspension. Through visual
observations this region has been sub-divided into hard and soft zones. Superposition
of zone propagation on characteristic (loci of concentration) plots has yielded
information on the conditions required for channel formation and growth and has led
to a revised set of conclusions on the nature of random channelling. [Continues.]
Funding
EPSRC.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Publisher
© Gareth ButtPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 2.5 Generic (CC BY-NC-ND 2.5) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by-nc-nd/2.5/Publication date
1997Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.Language
- en