实验流体力学2025，Vol.39Issue(6)：74-82,9.DOI:10.11729/syltlx20220028
流动条件下小球藻生长特性的实验研究
Experimental investigation on growth profiles of microalgae with different flow conditions in photo-bioreactors
摘要
Abstract
High-density algal cultivation is important for the efficient use of biomass resources.To address the issue of how poor water movement affects the growth and production of microalgae,this paper looked at how the speed of the water flow and the effects of swirling motion in the photobioreactors(PBR)differ,using a special tool called the Time-resolved Particle image Velocimeter(TR-PIV)to measure the growth rate and turbulent kinetic energy of Chlorella.The study compared how the liquid flows and creates eddies in the photobioreactors,and it produced diagrams showing the flow rate,size of the eddies,and turbulent kinetic energy,while also measuring the growth rate and carotenoid content of Chlorella vulgaris.The experimental results indicated that the flow with high axial velocity,high radial velocity,high eddy volume(0.015-0.025 s-1),and high TKE(≤0.2 m2/s2)accelerated the division and growth of Chlorella cells and the production of high value-added products and that visualizing the flow field is an effective tool for the design and optimization of PBR.The method for visualizing the experimental flow field is an effective tool for the design and optimization of PBR.关键词
光生物反应器/流速场/高时间分辨率粒子图像测速/微藻/高密度藻培Key words
photo-bioreactor/flow visualization/Time-resolved Particle Image Velocimeter/microalgae/high density cultivation分类
数理科学引用本文复制引用
ZHANG Ting,FENG Aiguo,JIANG Nan,LIU Chunjiang..流动条件下小球藻生长特性的实验研究[J].实验流体力学,2025,39(6):74-82,9.基金项目
国家自然科学基金项目(42007385) （42007385）
辽宁省自然科学基金项目(2023-MS-316) （2023-MS-316）
辽宁工程技术大学博士启动基金项目(21-1144) （21-1144）
