Effect of Bending Direction on Mixing Performance of Zigzag Microchannels

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yoshiro Inoue¹  Atsuki Sando¹  Shunsuke Hashimoto¹ 

[1] Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University

关键词: Microchannel;    Zigzag Channel;    Fluid Mixing;    Mixing Performance;    Bending Direction;   

DOI  :  10.1252/jcej.11we088

来源: Maruzen Company Ltd

【 摘 要 】

References(15)Cited-By(1)Zigzag microchannels have been commonly used in microreactors and micro total analysis systems (μTAS). In the present study, the mixing performance of four special types of zigzag channels was compared. These channels had m successive 90° bends in the same direction, followed by m successive 90° bends in the opposite direction; this pattern was repeated numerous times. The mixing efficiencies (as Reynolds number, Re) under various flow conditions of the zigzag channels (having m=1, 2, 3, or 4) were experimentally determined in the following two ways. First, the mixing patterns were visualized by means of laser-induced fluorometry (LIF). Second, the required length for complete mixing was measured by means of a decolorizing reaction. The results revealed that the mixing efficiency became high with an increase in m, and the effect of convective flow by bending in the same direction is large for 150

【 授权许可】

Unknown