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Article Dans Une Revue IFAC Proceedings Volumes Année : 2013

Feedback linearizing control of light-to-microalgae ratio in artificially lighted photobioreactors

Résumé

The present paper describes the design and the validation of a lumostatic controller for artificially lighted photobioreactors operated in discontinuous mode. The ratio between the incident light intensity and the biomass concentration, termed light-to-microalgae ratio, was selected as output variable, while its control was provided by manipulating the power supply of a light source and consequently the incident light intensity. The biomass yield on light energy was introduced in order to properly compare the batches operated under constant light intensities with the lumostatic batches. The results obtained in simulation show that a lumostatic batch can yield at least 10% more biomass per mole of supplied photons. The nonlinear controller, synthesized on the feedback linearizing technique, was implemented and validated on a laboratory torus photobioreactor inoculated with Chlamydomonas reinhardtii cells.
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hal-04634893 , version 1 (04-07-2024)

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George Adrian Ifrim, Mariana Titica, Lionel Boillereaux, Sergiu Caraman. Feedback linearizing control of light-to-microalgae ratio in artificially lighted photobioreactors. IFAC Proceedings Volumes, 2013, 12th IFAC Symposium on Computer Applications in Biotechnology, 46 (31), pp.169-174. ⟨10.3182/20131216-3-in-2044.00038⟩. ⟨hal-04634893⟩
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