Liquid-Liquid Two-Phase Flow Patterns and Mass Transfer Characteristics in a Circular Microchannel

被引：7

作者：

Zhang, Xubin ^{[1
]}

Chen, Dan ^{[1
]}

Wang, Yan ^{[1
]}

Cai, Wangfeng ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

ADVANCED COMPOSITE MATERIALS, PTS 1-3 | 2012年 / 482-484卷

关键词：

Microchannel; Two-Phase Flow; Flow Patterns; Mass Transfer; CAPILLARY-MICROREACTOR; SLUG FLOW; INTENSIFICATION; INTERFACES; EXTRACTION; SYSTEMS;

D O I：

10.4028/www.scientific.net/AMR.482-484.89

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In this paper, flow patterns and mass transfer characteristics of two immiscible fluids in a T-junction circular microchannel were investigated. Four flow patterns, i.e. slug flow, irregular flow, parallel flow and annular flow, were captured by a CCD method, which were resulted from the competition among interfacial tension, viscous force and inertia force. Besides, the overall volumetric mass transfer coefficients ka for the four flow patterns were determined experimentally. The values of ka are in the range of 0.006 similar to 0.545 s(-1) and mainly dependent on the superficial velocity and the flow pattern regime.

引用

页码：89 / 94

页数：6

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