Optimal control from inoculation on a continuous microalgae culture

Continuous culture methodology for the screening of microalgae for oil.

A basic criterion in the selection of microalgae suitable as source of oil for biodiesel should be their actual capacity to produce lipids or, more properly, the fatty acid yield. Performance assessment of 10 preselected microalgae under both batch and continuous culture points to the latter approach as the most adequate for evaluating fatty acid productivity. Differences were patent in continu...

Removal of pharmaceuticals from industrial wastewaters by microalgae culture

Cell control device for continuous culture reactors.

A device has been developed to increase and control the cell concentration in continuous culture fermentation reactors. This cell control device, used to study mixed culture methane fermentations, was developed because it is necessary to obtain cell concentrations much higher than can be obtained in a single stage reactor by adjustment of residence time or substrate concencentration. Designed a...

A New Optimal Solution Concept for Fuzzy Optimal Control Problems

In this paper, we propose the new concept of optimal solution for fuzzy variational problems based on the possibility and necessity measures. Inspired by the well–known embedding theorem, we can transform the fuzzy variational problem into a bi–objective variational problem. Then the optimal solutions of fuzzy variational problem can be obtained by solving its corresponding biobjective variatio...

Optimal control for continuous supply network models

We consider a supply network where the flow of parts can be controlled at the vertices of the network. Based on a coarse grid discretization provided in [6] we derive discrete adjoint equations which are subsequently validated by the continuous adjoint calculus. Moreover, we present numerical results concerning the quality of approximations and computing times of the presented approaches.