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 the radiation transfer in photobioreactors during microalgae growth. Herein, <i>Chlorella</i> sp. and <i>Scenedesmus ob...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-11-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/9/11/864 |
| _version_ | 1797464248839831552 |
|---|---|
| author | Tianhao Fei Li Lin Xingcan Li Jia-Yue Yang Junming Zhao Linhua Liu |
| author_facet | Tianhao Fei Li Lin Xingcan Li Jia-Yue Yang Junming Zhao Linhua Liu |
| author_sort | Tianhao Fei |
| collection | DOAJ |
| description | Microalgae are considered one of the most efficient and environmentally friendly ways for carbon dioxide fixation. The bubbles play an important role in analyzing the radiation transfer in photobioreactors during microalgae growth. Herein, <i>Chlorella</i> sp. and <i>Scenedesmus obliquus</i> were cultured in the airlift flat plate photobioreactor and evaluated for the temporal evolution of radiation characteristics. A one-dimensional model of bubbles on time-dependent radiation transfer in a photobioreactor was proposed, and it was well verified with the experimental result. The results indicated that with the increase of bubble volume fraction or the decrease of bubble radius, the local irradiance increased at the illuminated surface of the microalgal culture and was attenuated more rapidly along with the radiation transfer. The average specific growth rate of microalgae decreases as bubble volume fraction increases or bubble radius decreases. The volume fraction of 0.003 and a radius of 3.5 mm are the optimal operating conditions in this study for microalgae growth and carbon dioxide fixation. The presented analysis would facilitate the design and optimization of the optical and aeration configurations of photobioreactors for carbon dioxide fixation. |
| first_indexed | 2024-03-09T18:04:20Z |
| format | Article |
| id | doaj.art-cbffb11458ba46edb366803dc3a76edb |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T18:04:20Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-cbffb11458ba46edb366803dc3a76edb2023-11-24T09:37:48ZengMDPI AGPhotonics2304-67322022-11-0191186410.3390/photonics9110864Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide FixationTianhao Fei0Li Lin1Xingcan Li2Jia-Yue Yang3Junming Zhao4Linhua Liu5School of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaSchool of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaCollege of Energy and Power Engineering, Northeast Electric Power University, Jilin City 132012, ChinaSchool of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaSchool of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaMicroalgae are considered one of the most efficient and environmentally friendly ways for carbon dioxide fixation. The bubbles play an important role in analyzing the radiation transfer in photobioreactors during microalgae growth. Herein, <i>Chlorella</i> sp. and <i>Scenedesmus obliquus</i> were cultured in the airlift flat plate photobioreactor and evaluated for the temporal evolution of radiation characteristics. A one-dimensional model of bubbles on time-dependent radiation transfer in a photobioreactor was proposed, and it was well verified with the experimental result. The results indicated that with the increase of bubble volume fraction or the decrease of bubble radius, the local irradiance increased at the illuminated surface of the microalgal culture and was attenuated more rapidly along with the radiation transfer. The average specific growth rate of microalgae decreases as bubble volume fraction increases or bubble radius decreases. The volume fraction of 0.003 and a radius of 3.5 mm are the optimal operating conditions in this study for microalgae growth and carbon dioxide fixation. The presented analysis would facilitate the design and optimization of the optical and aeration configurations of photobioreactors for carbon dioxide fixation.https://www.mdpi.com/2304-6732/9/11/864carbon dioxide fixationmicroalgaetime-dependent radiation characteristicsCO<sub>2</sub> bubblesphotobioreactorlight transfer |
| spellingShingle | Tianhao Fei Li Lin Xingcan Li Jia-Yue Yang Junming Zhao Linhua Liu Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide Fixation Photonics carbon dioxide fixation microalgae time-dependent radiation characteristics CO<sub>2</sub> bubbles photobioreactor light transfer |
| title | Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide Fixation |
| title_full | Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide Fixation |
| title_fullStr | Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide Fixation |
| title_full_unstemmed | Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide Fixation |
| title_short | Modeling Effect of Bubbles on Time-Dependent Radiation Transfer of Microalgae in a Photobioreactor for Carbon Dioxide Fixation |
| title_sort | modeling effect of bubbles on time dependent radiation transfer of microalgae in a photobioreactor for carbon dioxide fixation |
| topic | carbon dioxide fixation microalgae time-dependent radiation characteristics CO<sub>2</sub> bubbles photobioreactor light transfer |
| url | https://www.mdpi.com/2304-6732/9/11/864 |
| work_keys_str_mv | AT tianhaofei modelingeffectofbubblesontimedependentradiationtransferofmicroalgaeinaphotobioreactorforcarbondioxidefixation AT lilin modelingeffectofbubblesontimedependentradiationtransferofmicroalgaeinaphotobioreactorforcarbondioxidefixation AT xingcanli modelingeffectofbubblesontimedependentradiationtransferofmicroalgaeinaphotobioreactorforcarbondioxidefixation AT jiayueyang modelingeffectofbubblesontimedependentradiationtransferofmicroalgaeinaphotobioreactorforcarbondioxidefixation AT junmingzhao modelingeffectofbubblesontimedependentradiationtransferofmicroalgaeinaphotobioreactorforcarbondioxidefixation AT linhualiu modelingeffectofbubblesontimedependentradiationtransferofmicroalgaeinaphotobioreactorforcarbondioxidefixation |