%0 journal article
%@ 1873-2976
%A Kerner, M.,Wolff, T.,Brinkmann, T.

%D 2024
%J Bioresource Technology
%N Part A
%P 129917 
%R doi:10.1016/j.biortech.2023.129917
%T Efficient supply with carbon dioxide from flue gas during large scale production of microalgae: A novel approach for bioenergy facades
%U https://doi.org/10.1016/j.biortech.2023.129917
Part A 
%X The efficiency of using enriched CO2 from flue gas for large scale production of the green microalgae Chlorella sorokiniana in a bioenergy facade was studied. Using a membrane device, the enrichment of CO2 from heating system flue gas in the low pressure product gas was up to 49 vol% and the CO2 recovery was 62 %. With a static mixer the re-compressed product gas was applied to the culture medium with mean losses during cultivation of only 24 %. Thereby the pH could be maintained at a mean of 6.2 and a temperature always below 28 °C, both optimal for growth of Chlorella sorokiniana. Although PAR solar radiation during midday always exceeded 1000 µmol m−2 s−1 mean photosynthetic efficiency was 0.54 g mol−1. Results indicate that the chosen approach for CO2 supply overcomes the problem of CO2 losses and allows for a more economic and sustainable microalgae production in a bioenergy facade.