Simultaneous control of pH and dissolved oxygen in closed photobioreactor

Mariana Titica*, Antoinette Kazbar, Helene Marec, Jeremy Pruvost, George Ifrim, Marian Barbu, Sergiu Caraman

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademic

7 Citations (Scopus)

Abstract

This study investigates simultaneous pH and dissolved oxygen control (DO) in a closed photobioreactor (PBR), using a conventional linear feedback technique, i.e. individual PID and PID coupled with feedforward compensation. The proposed control scheme has been designed using linear approximations, whereas their evaluation has been done through simulation, considering a nonlinear process model, describing the complexity of this multivariable biological process. The proposed control including feedforward compensation present improved control performances, and consequently improves microorganism's growth conditions. This is of crucial importance in the case of lab scale set ups that have to provide fully controlled cultivation conditions for accurate study of growth dynamics.

Original languageEnglish
Title of host publication2018 22nd International Conference on System Theory, Control and Computing, ICSTCC 2018
EditorsRazvan Solea, Marian Barbu, Adrian Filipescu
PublisherIEEE
Pages372-378
Number of pages7
ISBN (Electronic)9781538644447
DOIs
Publication statusPublished - 19 Nov 2018
Externally publishedYes
Event22nd International Conference on System Theory, Control and Computing, ICSTCC 2018 - Sinaia, Romania
Duration: 10 Oct 201812 Oct 2018

Conference/symposium

Conference/symposium22nd International Conference on System Theory, Control and Computing, ICSTCC 2018
Country/TerritoryRomania
CitySinaia
Period10/10/1812/10/18

Keywords

  • dissolved oxygen controller
  • feedback feed-forward scheme
  • microalgae
  • pH controller
  • photobioreactor

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