CFD simulation for reduced energy costs in tubular photobioreactors using wall turbulence promoters

被引：36

作者：

Gomez-Perez, C. A. ^{[1
,2
]}

Espinosa, J. ^{[2
]}

Montenegro Ruiz, L. C. ^{[3
]}

van Boxtel, A. J. B. ^{[1
]}

机构：

[1] Wageningen Univ, Biobased Chem & Technol, NL-6700 AP Wageningen, Netherlands

[2] Univ Nacl Colombia, Grp Automat Univ Nacl GAUNAL, Medellin, Colombia

[3] Univ Nacl Colombia, Dept Biol, Lab Cult Algas, Bogota, Colombia

来源：

ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS | 2015年 / 12卷

关键词：

Tubular photobioreactors; CFD; Turbulence promoters; Particle tracking; Energy consumption; HEAT-TRANSFER; DESIGN; FLOW; OPTIMIZATION; CULTIVATION; SYSTEMS;

D O I：

10.1016/j.algal.2015.07.011

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Tubular photobioreactors (PBR) have great potential for microalgae cultivation due to its high productivity compared with open ponds. However, the energy uptake for fluid circulation and mixing is significant, impacting the operation and production costs. In this work, we investigate by CFD simulation the effect of wall turbulence promoters, i. e. profiles at the inner tube wall, at low flow velocities (0.1-0.3 m/s). The use of these wall turbulence promoters is compared to the mixing behaviour in standard tubular PBRs at flow velocity of 0.5m/s. It was found that the wall turbulence promoters have at flow velocities of 0.2-0.25 m/s better mixing behaviour as in standard PBRs while the energy uptake is 60-80% lower. (C) 2015 Elsevier B. V. All rights reserved.

引用

页码：1 / 9

页数：9

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