Effect of viscosity on the mixing efficiency in a self-agitation anaerobic baffled reactor
Effect of viscosity on the mixing efficiency in a self-agitation anaerobic baffled reactor
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DOI：
10.1007/s00449-014-1334-y
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发表时间：
2014-12
影响因子：
3.8
通讯作者：
Wei-Kang Qi;Yiling Guo;Mei Xue;Jingru Du;Weicheng Li;Y. Li
中科院分区：
文献类型：
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作者：
Wei-Kang Qi;Yiling Guo;Mei Xue;Jingru Du;Weicheng Li;Y. Li
摘要介绍了一种特殊的自搅拌反应器，它不需要机械搅拌器或其他设备进行搅拌。自搅拌受粘度变化的影响。为了获得和研究粘度对自搅拌反应器中混合行为的影响，使用Fluent®进行数值模拟并可视化流体流动状态。结果表明：当液体粘度为1 mPa s时，整个自搅拌过程几乎完全混合；随着黏度的增加，每次自搅拌后，底物和示踪剂的扩散变得相当大。一旦粘度大于25 mPa s，底物和示踪剂就不能在整个反应器中混合，反应器被认为是几个完全混合的反应器的组合，它们之间很少发生液体交换。图形抽象。
AbstractOne special self-agitation reactor, which does not require a mechanical mixer or other equipment for mixing, has been introduced. Self-agitation is affected by variation in viscosity property. To obtain and research the effect of viscosity on mixing behavior in the self-agitation reactor, Fluent®was used to create numerical simulations and to visualize the fluid flow status. The results show that when the viscosity of the liquid is 1 mPa s, the entire self-agitation results in an almost completely mixed reactor. The substrate becomes difficult to agitate, and the diffusion of the substrate and the tracer become quite after every self-agitation, as the viscosity increases. Once the viscosity is higher than 25 mPa s, the substrate and tracer could not be mixed in the entire reactor, and the reactor is recognized as the combination of several completely mixed reactors between which little exchange of liquid occurs.Graphical abstract.