期刊论文详细信息
Ingenieria y Universidad
Evaluation of Microalgal Mortality in a centrifugal Pump of a Tubular Photobioreactor
Cristian Hernán García Pulido1  David Alberto Marín Quintero1  José Luís Ramírez Duque1 
[1] Universidad Autónoma de Occidente
关键词: Shear stress;    Photobioreactor;    Microalgae biomass;    Computational fluid dynamics (CFD);   
学科分类:工程和技术(综合)
来源: Pontificia Universidad Javeriana
PDF
【 摘 要 】

Industrially, the centrifugal pumps arevery useful and within their applications,it can be found pumping fluidscontaining living microorganismsin suspension. However, this typeof pumping can affect the growth ofmicroorganisms because it generateshigh shear stresses, which arenot supported by their cell walls,resulting in high cell mortality. In thisarticle, we analyzed computationallya centrifugal pump used for pumpingmicroalgal cultures in tubular photobioreactors.To do this, we modeledin CAD both the impeller and thevolute; and then we conducted a simulationin CFX under the operationconditions of a photobioreactor. Theevaluation of the velocity distributionand shear stresses inside the pump,led to conclude that it is impracticalto use these pumping mechanisms,due to the high mortality rate that isexpected for some microalgae species,such as the Chaetoceros muelleri; forwhich its viability can be reduced tolevels of 52%”.

【 授权许可】

CC BY   

【 预 览 】
附件列表
Files Size Format View
RO201902180569029ZK.pdf 1708KB PDF download
  文献评价指标  
  下载次数:9次 浏览次数:23次