Operating charts for continuous sedimentation III: control of step inputs
(2006) In Journal of Engineering Mathematics 54(3). p.225-259- Abstract
- The main purposes of a clarifier-thickener unit is that it should produce a high underflow concentration and a zero effluent concentration. The main difficulty in the control of the clarification-thickening process (by adjusting a volume flow) is that it is nonlinear with complex relations between concentrations and volume flows via the solution of a PDE - a conservation law with a source term and a space-discontinuous flux function. In order to approach this problem, control objectives for dynamic operation and strategies on how to meet these objectives are presented in the case when the clarifier-thickener unit initially is in steady state in optimal operation and is subjected to step input data. A complete classification of such... (More)
- The main purposes of a clarifier-thickener unit is that it should produce a high underflow concentration and a zero effluent concentration. The main difficulty in the control of the clarification-thickening process (by adjusting a volume flow) is that it is nonlinear with complex relations between concentrations and volume flows via the solution of a PDE - a conservation law with a source term and a space-discontinuous flux function. In order to approach this problem, control objectives for dynamic operation and strategies on how to meet these objectives are presented in the case when the clarifier-thickener unit initially is in steady state in optimal operation and is subjected to step input data. A complete classification of such solutions is given by means of an operating chart (concentration-flux diagram). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/406007
- author
- Diehl, Stefan LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- thickener, control, operating charts, continuous sedimentation, step response
- in
- Journal of Engineering Mathematics
- volume
- 54
- issue
- 3
- pages
- 225 - 259
- publisher
- Springer
- external identifiers
-
- wos:000238272400003
- scopus:33745089598
- ISSN
- 0022-0833
- DOI
- 10.1007/s10665-005-7720-3
- language
- English
- LU publication?
- yes
- id
- 3cced738-f94c-4c39-a519-d63cc8327206 (old id 406007)
- date added to LUP
- 2016-04-01 12:03:48
- date last changed
- 2022-01-26 22:13:02
@article{3cced738-f94c-4c39-a519-d63cc8327206,
abstract = {{The main purposes of a clarifier-thickener unit is that it should produce a high underflow concentration and a zero effluent concentration. The main difficulty in the control of the clarification-thickening process (by adjusting a volume flow) is that it is nonlinear with complex relations between concentrations and volume flows via the solution of a PDE - a conservation law with a source term and a space-discontinuous flux function. In order to approach this problem, control objectives for dynamic operation and strategies on how to meet these objectives are presented in the case when the clarifier-thickener unit initially is in steady state in optimal operation and is subjected to step input data. A complete classification of such solutions is given by means of an operating chart (concentration-flux diagram).}},
author = {{Diehl, Stefan}},
issn = {{0022-0833}},
keywords = {{thickener; control; operating charts; continuous sedimentation; step response}},
language = {{eng}},
number = {{3}},
pages = {{225--259}},
publisher = {{Springer}},
series = {{Journal of Engineering Mathematics}},
title = {{Operating charts for continuous sedimentation III: control of step inputs}},
url = {{http://dx.doi.org/10.1007/s10665-005-7720-3}},
doi = {{10.1007/s10665-005-7720-3}},
volume = {{54}},
year = {{2006}},
}