A photobioreactor for microalgae cultivation with internal illumination considering flashing light effect and optimized light-source arrangement

2017 ◽  
Vol 133 ◽  
pp. 558-565 ◽  
Author(s):  
Jin-Yang Hu ◽  
Toru Sato
Keyword(s):  
Light Source ◽  
Microalgae Cultivation ◽  
Light Effect ◽  
Flashing Light

A simple algal production system designed to utilize the flashing light effect

1983 ◽  
Vol 25 (10) ◽  
pp. 2319-2335 ◽  
Author(s):  
E. A. Laws ◽  
K. L. Terry ◽  
J. Wickman ◽  
M. S. Chalup
Keyword(s):  
Production System ◽  
Light Effect ◽  
Algal Production ◽  
Flashing Light

Serial lantern-shaped draft tube enhanced flashing light effect for improving CO2 fixation with microalgae in a gas-lift circumflux column photobioreactor

2018 ◽  
Vol 255 ◽  
pp. 156-162 ◽  
Author(s):  
Qing Ye ◽  
Jun Cheng ◽  
Wangbiao Guo ◽  
Junchen Xu ◽  
Ke Li ◽  
...  
Keyword(s):  
Co2 Fixation ◽  
Draft Tube ◽  
Light Effect ◽  
Flashing Light ◽  
Gas Lift

Installation of flow deflectors and wing baffles to reduce dead zone and enhance flashing light effect in an open raceway pond

2015 ◽  
Vol 198 ◽  
pp. 150-156 ◽  
Author(s):  
Qinghua Zhang ◽  
Shengzhang Xue ◽  
Chenghu Yan ◽  
Xia Wu ◽  
Shumei Wen ◽  
...  
Keyword(s):  
Dead Zone ◽  
Light Effect ◽  
Open Raceway Pond ◽  
Raceway Pond ◽  
Flashing Light

scholarly journals Improving microalgal growth by strengthening the flashing light effect simulated with computational fluid dynamics in a panel bioreactor with horizontal baffles

RSC Advances ◽  
2018 ◽  
Vol 8 (34) ◽  
pp. 18828-18836 ◽  
Author(s):  
Qing Ye ◽  
Jun Cheng ◽  
Zongbo Yang ◽  
Weijuan Yang ◽  
Junhu Zhou ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flue Gas ◽  
Light Effect ◽  
Flashing Light

Biological CO2 elimination by photosynthetic microalgae is a sustainable way to mitigate CO2 from flue gas and other sources.

scholarly journals Simulation of a Novel Tubular Microalgae Photobioreactor with Aerated Tangent Inner Tubes: Improvements in Mixing Performance and Flashing-Light Effects

Archaea ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Xuyang Cui ◽  
Junhong Yang ◽  
Yuanzheng Feng ◽  
Wenwen Zhang
Keyword(s):  
High Efficiency ◽  
Aeration Rate ◽  
Cycle Period ◽  
Field Synergy ◽  
Light Effect ◽  
Dark Cycle ◽  
Cycle Frequency ◽  
Microalgal Cultivation ◽  
Mixing Performance ◽  
Flashing Light

At present, large-scale and high-efficiency microalgal cultivation is the key to realizing the technology for carbon capture and storage (CCS) and bioresource recovery. Meanwhile, tubular photobioreactors (PBRs) have great potential for microalgal cultivation due to their high productivity. To improve the mixing performance and flashing-light effect, a novel tube PBR with the inner tube tangential to the outer tube was developed, whose radial aeration pores are situated along the length of the inner tube. The direction of aeration, aeration rate, light/dark cycle period (L/D), light-time ratio, average turbulent kinetic energy (TKE), and degree of synergy between the velocity and direction of the light field in the PBR were optimized by a computational fluid dynamics (CFD) simulation and field synergy theory. The results show that a downwards aeration direction of 30° and an aeration rate of 0.7 vvm are the most conducive to reducing the dead zone and improving the light/dark cycle frequency. Compared to the concentric double-tube PBR, the light/dark cycle frequency and light time of the tangent double-tube PBR increased by 78.2% and 36.2% to 1.8 Hz and 47.8%, respectively, and the TKE was enhanced by 48.1% from 54 to 80 cm2·s−2. Meanwhile, field synergy theory can be extended and applied to the design of tubular microalgae PBRs, and the average synergy of the light and velocity gradients across the cross-section increased by 38% to 0.69. The tangential inner tube aeration structure generated symmetrical vertical vortices between the light and dark areas in the PBR, which significantly improved the mixing performance and flashing-light effect. This novel design can provide a more suitable microenvironment for microalgal cultivation and is promising for bioresource recovery applications and improving the yield of microalgae.

Research on influence factors of flashing light source measurement

2017 ◽  
Author(s):  
Lei Cui ◽  
Yaqing Jia ◽  
Jianliang Zhang ◽  
Chi Chen ◽  
Wende Liu
Keyword(s):  
Light Source ◽  
Influence Factors ◽  
Flashing Light

A novel photobioreactor structure using optical fibers as inner light source to fulfill flashing light effects of microalgae

2013 ◽  
Vol 138 ◽  
pp. 141-147 ◽  
Author(s):  
Shengzhang Xue ◽  
Qinghua Zhang ◽  
Xia Wu ◽  
Chenghu Yan ◽  
Wei Cong
Keyword(s):  
Light Source ◽  
Optical Fibers ◽  
Light Effects ◽  
Flashing Light ◽  
Inner Light

Dynamic discrete model of flashing light effect in photosynthesis of microalgae

2005 ◽  
Vol 17 (3) ◽  
pp. 207-214 ◽  
Author(s):  
Naohiro Yoshimoto ◽  
Toru Sato ◽  
Yutaka Kondo
Keyword(s):  
Discrete Model ◽  
Light Effect ◽  
Flashing Light
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