Enhancing Mixing Efficiency: A CFD-Driven Design of a Helical Pipe-Type Motionless Mixer with a Kenics-Type Element

IF 3.2 4区 工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY
Haruki Furukawa, Otowa Takahashi, Kaito Ikeda, Yoshihito Kato, Hyun Gi Koh, Seung-Tae Koh
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引用次数: 0

Abstract

An approach to process intensification is the use of motionless mixers. Among various motionless mixers, the helical pipe-type motionless mixer has attracted considerable attention. However, its mixing performance can vary greatly depending on the location of raw material injection. In this study, we developed a helical pipe-type motionless mixer that provides consistent mixing performance regardless of the injection position of the raw materials. This helical pipe-type motionless mixer has only one Kenics-type element in the center of the helical pipe. The mixing performance of this design was evaluated using computational fluid dynamics (CFD). The mixing performance was evaluated using the mixing coefficient Mc defined as an indicator of mixing efficiency between two liquids. The Mc for the helical pipe-type motionless mixer without elements has at most 0.5. However, the results showed that the helical pipe-type motionless mixer having more than 4 turns with one Kenics-type element resulted in \({M}_{c}\ge 0.95\) in the region where Reynolds number was greater than 30.

提高混合效率:带kenics型元件的螺旋管式不动混合器cfd驱动设计
过程强化的一种方法是使用不动混合器。在各种不动混合器中,螺旋管式不动混合器引起了相当大的关注。然而,它的混合性能可以很大程度上取决于原料注入的位置。在这项研究中,我们开发了一种螺旋管式不动混合器,无论原料的注入位置如何,它都能提供一致的混合性能。这种螺旋管式不动混合器在螺旋管中心只有一个kenics型元件。采用计算流体力学(CFD)对该设计的混合性能进行了评价。用混合系数Mc作为两种液体混合效率的指标来评价混合性能。无元件螺旋管式不动混合器的Mc不超过0.5。结果表明,4转以上的螺旋管型不动混合器在雷诺数大于30的区域产生\({M}_{c}\ge 0.95\)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Korean Journal of Chemical Engineering
Korean Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
4.60
自引率
11.10%
发文量
310
审稿时长
4.7 months
期刊介绍: The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.
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