Hydrodynamics and mass-transfer properties of alkane-water liquid-liquid system in a microchannel

IF 2.5 4区工程技术 Q2 INSTRUMENTS & INSTRUMENTATION

Microfluidics and Nanofluidics Pub Date : 2025-10-06 DOI:10.1007/s10404-025-02849-w

Shunkai Xia, Jingwei Zhang, Haohong Duan, Zhuo Chen, Jianhong Xu

引用次数: 0

Abstract

Microchemical devices offer significant advantages for liquid-liquid systems; however, microscale transport in alkane-water systems with large interfacial tension remains poorly understood. This study investigates the dodecane-water system in microchannels to reveal previously unreported aspects of droplet formation, hydrodynamics, and mass transfer. The results demonstrate that droplet size is governed by the interplay between shear and interfacial forces, as well as the flow rate of the dispersed phase, highlighting behaviors not observed in conventional systems. The volumetric mass-transfer coefficient is also determined and correlated with dimensionless numbers. The superficial mass-transfer coefficient was further extracted from experimental results and shown to be strongly influenced by internal convection within slugs. These findings provide new insights into microscale transport phenomena and offer guidance for the optimization of microchemical processes in alkane-water systems.

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微通道中烷烃-水-液-液体系的流体力学和传质特性

微化学装置为液-液系统提供了显著的优势；然而，具有大界面张力的烷烃-水体系中的微尺度输运仍然知之甚少。本研究调查了微通道中的十二烷-水系统，以揭示以前未报道的液滴形成、流体动力学和传质方面。结果表明，液滴的大小受剪切力和界面力的相互作用以及分散相的流速的影响，突出了传统体系中未观察到的行为。还确定了体积传质系数，并与无因次数相关联。进一步从实验结果中提取了表面传质系数，发现表面传质系数受弹塞内部对流的强烈影响。这些发现为研究微尺度输运现象提供了新的见解，并为烷烃-水体系微化学过程的优化提供了指导。

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

Microfluidics and Nanofluidics 工程技术-纳米科技

CiteScore

4.80

自引率

3.60%

发文量

审稿时长

2 months

期刊介绍： Microfluidics and Nanofluidics is an international peer-reviewed journal that aims to publish papers in all aspects of microfluidics, nanofluidics and lab-on-a-chip science and technology. The objectives of the journal are to (1) provide an overview of the current state of the research and development in microfluidics, nanofluidics and lab-on-a-chip devices, (2) improve the fundamental understanding of microfluidic and nanofluidic phenomena, and (3) discuss applications of microfluidics, nanofluidics and lab-on-a-chip devices. Topics covered in this journal include: 1.000 Fundamental principles of micro- and nanoscale phenomena like, flow, mass transport and reactions 3.000 Theoretical models and numerical simulation with experimental and/or analytical proof 4.000 Novel measurement & characterization technologies 5.000 Devices (actuators and sensors) 6.000 New unit-operations for dedicated microfluidic platforms 7.000 Lab-on-a-Chip applications 8.000 Microfabrication technologies and materials Please note, Microfluidics and Nanofluidics does not publish manuscripts studying pure microscale heat transfer since there are many journals that cover this field of research (Journal of Heat Transfer, Journal of Heat and Mass Transfer, Journal of Heat and Fluid Flow, etc.).