Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide Fixation

Microalgae are considered one of the most efficient and environmentally friendly ways for carbon dioxide fixation. The bubbles play an important role in analyzing radiation transfer photobioreactors during microalgae growth. Herein, Chlorella sp. Scenedesmus obliquus were cultured airlift flat plate photobioreactor evaluated temporal evolution characteristics. A one-dimensional model on time-dependent a was proposed, it well verified with experimental result. results indicated that increase bubble volume fraction or decrease radius, local irradiance increased at illuminated surface microalgal culture attenuated more rapidly along transfer. average specific growth rate decreases as increases radius decreases. 0.003 3.5 mm optimal operating conditions this study presented analysis would facilitate design optimization optical aeration configurations