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Number of results
2014 | 35 | 3 | 349-360
Article title

Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship

Content
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EN
Abstracts
EN
The paper presents the dynamic characteristics of a continuous tank bioreactor for microbiological process, with a developed predator-prey food chain. The presence of the predator microorganism considerably influences the position and stability character of steady-states. There appears to exist a wide range of unstable steady-states and high-amplitude oscillations of state variables. Without automatic control, the system can operate only in unsteady conditions. From technological point of view, this circumstance is unfavorable. It was shown that oscillations can be removed by employing automatic control with continuous P or PI controllers. Moreover, the use of a controller with integrating element causes removal of the predator from the bioreactor. The paper discusses an application of this phenomenon for practical purposes.
Publisher

Year
Volume
35
Issue
3
Pages
349-360
Physical description
Dates
published
1 - 9 - 2014
accepted
1 - 1 - 2014
online
17 - 10 - 2014
received
20 - 3 - 2013
revised
27 - 12 - 2013
Contributors
  • Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland, btabis@usk.pk.edu.pl
  • Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland
  • Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_cpe-2014-0026
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