Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship
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 wi...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences Committee of Chemical and Process Engineering
2014-09-01
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| Series: | Chemical and Process Engineering |
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| Online Access: | http://www.degruyter.com/view/j/cpe.2014.35.issue-3/cpe-2014-0026/cpe-2014-0026.xml?format=INT |
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| author | Tabiś Bolesław Skoneczny Szymon Stryjewski Wojciech S. |
| author_facet | Tabiś Bolesław Skoneczny Szymon Stryjewski Wojciech S. |
| author_sort | Tabiś Bolesław |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-8744811756c74c02ae93d45d1fed2f36 |
| institution | Kabale University |
| issn | 2300-1925 |
| language | English |
| publishDate | 2014-09-01 |
| publisher | Polish Academy of Sciences Committee of Chemical and Process Engineering |
| record_format | Article |
| series | Chemical and Process Engineering |
| spelling | doaj-art-8744811756c74c02ae93d45d1fed2f362025-08-20T03:52:07ZengPolish Academy of Sciences Committee of Chemical and Process EngineeringChemical and Process Engineering2300-19252014-09-0135334936010.2478/cpe-2014-0026cpe-2014-0026Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey RelationshipTabiś Bolesław0Skoneczny Szymon1Stryjewski Wojciech S.2Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, PolandCracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, PolandCracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, PolandThe 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.http://www.degruyter.com/view/j/cpe.2014.35.issue-3/cpe-2014-0026/cpe-2014-0026.xml?format=INTpredator-preydynamicsautomatic controlsteady statesbioreactor |
| spellingShingle | Tabiś Bolesław Skoneczny Szymon Stryjewski Wojciech S. Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship Chemical and Process Engineering predator-prey dynamics automatic control steady states bioreactor |
| title | Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship |
| title_full | Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship |
| title_fullStr | Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship |
| title_full_unstemmed | Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship |
| title_short | Nonlinear Dynamics of a Controlled Stirred Tank Bioreactor With Predator-Prey Relationship |
| title_sort | nonlinear dynamics of a controlled stirred tank bioreactor with predator prey relationship |
| topic | predator-prey dynamics automatic control steady states bioreactor |
| url | http://www.degruyter.com/view/j/cpe.2014.35.issue-3/cpe-2014-0026/cpe-2014-0026.xml?format=INT |
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