Temperature optimization in microalgae raceway reactors by depth regulation|Optimización de temperatura en reactores raceway para la producción de microalgas mediante regulación de nivel

In the microlagae-based producion systems, in addition to pH and dissolved oxygen, other parameters that significantly affect microalgae growth are solar radiation and temperature. Inadequate temperature significantly reduces biomass productivity in photobioreactors and can even cause total culture collapse. Direct temperature control in large-scale open reactors is considered unfeasible due to the large amount of energy required, leaving only the option of using passive or semi-passive systems. This paper presents an indirect method for temperature optimization in these systems by varying the culture depth using a thermal balance model and weather forecasts.