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

• Autorzy: Tabiś B. , Skoneczny S. , Stryjewski W. S.

Identyfikatory

DOI

10.2478/cpe-2014-0026

• Języki publikacji: EN

Abstrakty

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.

Słowa kluczowe

EN

predator-prey; dynamics; automatic control; steady states; bioreactor

PL

dynamika; kontrola automatyczna; bioreaktor

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2014
• Tom: Vol. 35, nr 3
• Strony: 349--360
• Opis fizyczny: Bibliogr. 26 poz., tab., rys.

Twórcy

autor

Tabiś B.

• Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland

autor

Skoneczny S.

• Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland

autor

Stryjewski W. S.

• Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland

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