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Operating charts for continuous sedimentation II: Step responses

Diehl, Stefan LU (2005) In Journal of Engineering Mathematics 53(2). p.139-185
Abstract
The process of continuous sedimentation of particles in a liquid has often been predicted by means of operating charts and mass-balance considerations, where the underlying constitutive assumption is the one by Kynch. Much more complex operating charts (concentration-flux diagrams) can be obtained from a one-dimensional model of an ideal continuous clarifier-thickener unit. The engineering concept of 'optimal operation' is defined generally as a special type of solution of the model equation, which is a conservation law with a source term and a space-discontinuous flux function. All qualitatively different step responses (with the unit initially in optimal operation in steady state) are presented and classified in terms of operating... (More)
The process of continuous sedimentation of particles in a liquid has often been predicted by means of operating charts and mass-balance considerations, where the underlying constitutive assumption is the one by Kynch. Much more complex operating charts (concentration-flux diagrams) can be obtained from a one-dimensional model of an ideal continuous clarifier-thickener unit. The engineering concept of 'optimal operation' is defined generally as a special type of solution of the model equation, which is a conservation law with a source term and a space-discontinuous flux function. All qualitatively different step responses (with the unit initially in optimal operation in steady state) are presented and classified in terms of operating charts. Quantitative information relating several interesting variables are also presented concerning, for example, the time until overflow occurs as a function of the feed concentration and flux. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
thickener, operating charts, step response, continuous sedimentation, settling
in
Journal of Engineering Mathematics
volume
53
issue
2
pages
139 - 185
publisher
Springer
external identifiers
  • wos:000233350400003
  • scopus:28444479441
ISSN
0022-0833
DOI
10.1007/s10665-005-6430-1
language
English
LU publication?
yes
id
3c9ee1ac-345c-40f1-9f8a-90f0ee7a4ec5 (old id 213068)
date added to LUP
2007-08-20 16:35:57
date last changed
2017-02-09 11:59:46
@article{3c9ee1ac-345c-40f1-9f8a-90f0ee7a4ec5,
  abstract     = {The process of continuous sedimentation of particles in a liquid has often been predicted by means of operating charts and mass-balance considerations, where the underlying constitutive assumption is the one by Kynch. Much more complex operating charts (concentration-flux diagrams) can be obtained from a one-dimensional model of an ideal continuous clarifier-thickener unit. The engineering concept of 'optimal operation' is defined generally as a special type of solution of the model equation, which is a conservation law with a source term and a space-discontinuous flux function. All qualitatively different step responses (with the unit initially in optimal operation in steady state) are presented and classified in terms of operating charts. Quantitative information relating several interesting variables are also presented concerning, for example, the time until overflow occurs as a function of the feed concentration and flux.},
  author       = {Diehl, Stefan},
  issn         = {0022-0833},
  keyword      = {thickener,operating charts,step response,continuous sedimentation,settling},
  language     = {eng},
  number       = {2},
  pages        = {139--185},
  publisher    = {Springer},
  series       = {Journal of Engineering Mathematics},
  title        = {Operating charts for continuous sedimentation II: Step responses},
  url          = {http://dx.doi.org/10.1007/s10665-005-6430-1},
  volume       = {53},
  year         = {2005},
}