OPTIMAL HARVESTING OF LIPIDS-RICH MICROALGAE SUBJECT TO A CIRCADIAN CYCLE UNDER LIMITED NITROGEN SUPPLY

Authors

  • Vanina Marquez
  • Alejandro Beccaria
  • Rodolfo Dondo

DOI:

https://doi.org/10.52292/j.laar.2024.1144

Keywords:

single cell oil; metabolic network; non-balanced growth; optimal control.

Abstract

The harvesting of algae rich in triacylglycerol from an open raceway pond with volume-changes synchronized to the circadian cycle and under limited nitrogen supply is researched. A reduced metabolic model of its non-balanced growth is embedded into a macroscopic balance for simulating growth in such a type of bioreactor. Afterwards, the model is used jointly with optimal control to derive cyclic inlet and outlet flow policies as well as optimal nitrogen levels for different time-horizons and initial physiological states in a case study which uses bibliographic data for the Tisochrysis lutea alga.

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Published

2024-03-11

Issue

Section

Control and Information Processing