Numerical simulation of vortex flow field generated in a novel nested-bottled photobioreactor to improve Arthrospira platensis growth

被引：6

作者：

Kubar, Ameer Ali ^{[1
]}

Kumar, Santosh ^{[1
]}

Liu, Wei ^{[4
]}

Cui, Yi ^{[1
]}

Zhu, Feifei ^{[2
]}

Xu, Xiangru ^{[3
]}

Shao, Cong ^{[1
]}

Hu, Xinjuan ^{[1
]}

Prempeh, Nama Yaa Akyea ^{[1
]}

Huo, Shuhao ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Peoples R China

[2] Jiangsu Univ, Sch Life Sci, Zhenjiang 212013, Peoples R China

[3] Jiangsu Univ, Sch Agr Engn, Zhenjiang 212013, Peoples R China

[4] Shandong Acad Sci, Qilu Univ Technol, Shandong Anal & Test Ctr, Jinan 250014, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2023年 / 373卷

基金：

中国国家自然科学基金;

关键词：

Biomass dry weight; Nested-bottled photobioreactor (NB-PBR); Photochemical efficiency; Mixing time; Mass transfer; MICROALGAL GROWTH; CARBON-DIOXIDE; RACEWAY PONDS; LIGHT/DARK CYCLE; CO2; FIXATION; BAFFLES; CULTIVATION; BIOMASS; GAS;

D O I：

10.1016/j.biortech.2023.128710

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, computational fluid dynamics were employed to examined clockwise and anticlockwise vortexes in the rising and down coming sections of novel nested-bottle photobioreactor. The radial velocity was increased by four times which significantly reduced dead zones compared to traditional PBR. The (NB-PBR) comprised of integrated bottles connected by curved tubes (d = 4 cm) that generated dominant vortices as the microalgae solution flows through each section (h = 10 cm). The (NB-PBR) was independent of the inner and outer sections which increased the mixing time and mass-transfer coefficient by 13.33 % and 42.9 %, respectively. Further-more, the results indicated that the (NB-PBR) showed higher photosynthesis efficiency preventing self-shading and photo-inhibition, resulting in an increase in biomass yield and carbon dioxide fixation by 35 % and 35.9 %, respectively.

引用

页数：11