文献类型：期刊文献

英文题名：Investigation on the performance of raceway ponds with internal structures by the means of CFD simulations and experiments

作者：Huang, Jianke[1];Qu, Xiaoxing[2];Wan, Minxi[1];Ying, Jiangguo[1];Li, Yuanguang[1];Zhu, Faochao[2];Wang, Jun[3];Shen, Guomin[1];Chen, Jianpei[2];Li, Wei[2]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]Jiaxing Zeyuan Bioprod Co Ltd, Jiaxing 314007, Peoples R China

年份：2015

卷号：10

起止页码：64

外文期刊名：ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000357989300009)】；

基金：This research was funded by National Basic Research Program China (973 Program: 2011CB200903), National High Technology Research and Development Program (863 Programs: 2013AA065804 and 2012AA050101), National Natural Science Foundation of China (31372548 and 31402319), National Key Technologies R&D Program (2011BAD14B02 and 2011BAD23B04).

语种：英文

外文关键词：Raceway pond; Computational fluid dynamics; Particle Image Velocimetry; Mixing; Microalgae cultivation

摘要：Raceway pond is the most widely used for large scale microalgae culture. In the present study, the Particle Image Velocimetry technology was used to validate the reliability of the computational fluid dynamics simulation model for raceway pond. In order to increase the mixing degree and decrease the power consumption, novel mixers called sloping baffles and flow deflectors were combined in the raceway pond. The hydrodynamic characteristics of four types of raceway ponds (traditional raceway, raceway fitted with flow deflectors, raceway fitted with sloping baffles, raceway fitted with both flow deflectors and sloping baffles) were simulated by computational fluid dynamics. The results showed that the raceway pond fitted with sloping baffles and flow deflectors reduced the power consumption by 10%, increased the average velocity by 6.8%, promoted the velocity along the light attenuation direction by 93% and significantly eliminated the dead zone compared with the traditional raceway pond at the condition of rotation speed of paddlewheel of 20 rpm. Lastly, cultivation of Chlorella pyrenoidosa experiments was conducted, and the results indicated that the combination of sloping baffles and flow deflectors can significantly improve the productivity of microalgae. (C) 2015 Elsevier B.V. All rights reserved.