Light footprint of microalgae cultivation system addressed by modified Cornet model.

Autor: Li L; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; University of Chinese Academy of Sciences, 100049 Beijing, China., Wang Y; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; University of Chinese Academy of Sciences, 100049 Beijing, China., Zhou W; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; Shandong Energy Institute, No. 189 Songling Road, Qingdao 266101, China., Yu Z; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; Shandong Energy Institute, No. 189 Songling Road, Qingdao 266101, China., Luan G; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; Shandong Energy Institute, No. 189 Songling Road, Qingdao 266101, China., Chen L; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; Shandong Energy Institute, No. 189 Songling Road, Qingdao 266101, China. Electronic address: Chenlin@qibebt.ac.cn., Liu T; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; Shandong Energy Institute, No. 189 Songling Road, Qingdao 266101, China. Electronic address: Liutz@qibebt.ac.cn., Lu X; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; Shandong Energy Institute, No. 189 Songling Road, Qingdao 266101, China; Marine Biology and Biotechnology Laboratory, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2024 Nov; Vol. 411, pp. 131295. Date of Electronic Publication: 2024 Aug 21.
DOI: 10.1016/j.biortech.2024.131295
Abstrakt: The cultivation of microalgae is significantly influenced by light intensity and utilization efficiency. This study developed a modified Cornet (M-Cornet) model to assess the distribution of light intensity and flux in microalgae cultivation systems. Algal biofilm cultivation represents a more concentrated approach of algal suspension cultivation. Both follow the M-Cornet model and exhibit the same growth rates when cultured under identical conditions. Algal pigments and morphologies greatly impact the light absorption and scattering, resulting in light attenuation in intensity, penetration distance and light flux distribution. Algae varieties exhibit diverse light flux characteristics. 37% - 90% of the incident light is absorbed, of which, 80% to 90% is dissipated as heat. 10% to 63% of the incident light is scattered off the photobioreactor. The overall light utilization efficiency ranges 6% to 13%. The light footprint using the M-Cornet model offers valuable insights for photobioreactors designing and cultivation operating.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: [Lin Chen, Associate professor, Dr. reports financial support was provided by National Key Research and Development Program of China. Tianzhong Liu, Professor,Dr. reports financial support was provided by Shandong Energy Institute of China. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper].
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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