2Massey University (Palmerston North, Auckland (Albany), Wellington, New Zealand - New Zealand)
Abstract : Microalgae are often seen as a potential biofuel producer. In order to predict achievable productivities in the so called raceway culturing system, the dy- namics of photosynthesis has to be taken into account. In particular, the dynami- cal effect of inhibition by an excess of light (photoinhibition) must be represented. We propose a model considering both photosynthesis and growth dynamics. This model involves three different time scales. We study the response of this model to uctuating light with different frequencies by slow/fast approximations. Therefore, we identify three different regimes for which a simplified expression for the model can be derived. These expressions give a hint on productivity improvement which can be expected by stimulating photosynthesis with a faster hydrodynamics.
https://hal.inria.fr/hal-00852255 Contributor : Jean-Luc GouzéConnect in order to contact the contributor Submitted on : Tuesday, August 20, 2013 - 2:04:05 PM Last modification on : Saturday, June 25, 2022 - 11:10:54 PM Long-term archiving on: : Thursday, November 21, 2013 - 4:14:13 AM
Philipp Hartmann, Quentin Béchet, Olivier Bernard. The effect of Time Scales in Photosynthesis on microalgae Productivity. Bioprocess and Biosystems Engineering, Springer Verlag, 2014, 37 (1), pp.17-25. ⟨10.1007/s00449-013-1031-2⟩. ⟨hal-00852255⟩