Perspective Design of Algae Photobioreactor for Greenhouses—A Comparative Study

The continued growth and evolving lifestyles of the human population require urgent development sustainable production in all its aspects. Microalgae have potential various commodities; however, energetic requirements algae cultivation still largely contribute to overall negative balance many operation plants. Here, we evaluate efficiency biomass lipids by Chlorella pyrenoidosa multi-tubular, helical-tubular, flat-panel airlift pilot scale photobioreactors, placed an indoor environment greenhouse laboratory Central Europe. Our results show that main energy consumption was related maintenance constant light intensity photobioreactor culture circulation helical-tubular photobioreactor. specific power input ranged between 0.79 W L?1 multi-tubular 6.8 construction allowed for lowest but also predetermined highest temperature sensitivity led a significant reduction productivity extraordinary warm summers 2018 2019. To meet yearlong microalgal context global change, further towards hybrid systems, combining advantages open closed can be expected.