化工进展 ›› 2019, Vol. 38 ›› Issue (04): 1624-1633.DOI: 10.16085/j.issn.1000-6613.2018-0826

• 化工过程与装备 • 上一篇    下一篇

微通道内液-液两相流流型及传质的研究进展

钱锦远1,2(),李晓娟1,吴赞2,陈珉芮1,金志江1(),蒙特桑顿2   

  1. 1. 浙江大学能源工程学院化工机械研究所,浙江 杭州 310027
    2. 瑞典隆德大学能源科学系,瑞典 隆德 22100
  • 收稿日期:2018-04-20 修回日期:2018-06-08 出版日期:2019-04-05 发布日期:2019-04-05
  • 通讯作者: 金志江
  • 作者简介:钱锦远(1988—),男,讲师,博士,主要从事复杂流动控制和强化传热技术研究。E-mail:<email>qianjy@zju.edu.cn</email>。|金志江,教授,博士生导师,主要从事高效节能技术与装备研究。E-mail: <email>jzj@zju.edu.cn</email>。
  • 基金资助:
    国家自然科学基金(51805470);中央高校基本科研业务费专项资金项目(2018QNA4013)

Research progress on flow regimes and mass transfer of liquid-liquid two-phase flow in microchannels

Jinyuan QIAN1,2(),Xiaojuan LI1,Zan WU2,Minrui CHEN1,Zhijiang JIN1(),Bengt SUNDÉN2   

  1. 1. Institute of Process Equipment, College of Energy Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China
    2. Department of Energy Sciences, Lund University,Lund 22100, Sweden
  • Received:2018-04-20 Revised:2018-06-08 Online:2019-04-05 Published:2019-04-05
  • Contact: Zhijiang JIN

摘要:

微通道内液-液两相流流动在微化工系统中占有重要的地位,了解微通道内液-液两相流体流动和传质规律对推动其工业化应用有重要作用。本文以微通道内液-液两相流系统为研究对象,简述了不同工况下微通道内液-液两相流流型和混合传质效率,分析了微通道特征、流体性质和流体流动速度等对流型形成和传质效率的影响。指出目前对于微通道内液-液两相流的研究多处于定性研究,定量研究仅针对某一体系展开,所得结果具有一定的局限性。关于微通道内液-液两相流传质研究实验较多而数值模拟方法相对较少,接下来的研究工作中应该考虑建立微通道内液-液两相流基础研究的数据库,通过分析大量的数据获得有效的流型划分准则和相关经验式以此推动微通道内液-液两相流的工业化应用。同时在传质研究过程中应研究开发相应的数值模拟模型,保证实验和数值模拟相结合,提出有效的传质效率评价机制。

关键词: 液-液两相流, 流型, 混合传质, 微通道

Abstract:

Liquid-liquid two-phase flow in microchannels plays an important role in micro-chemical engineering. Understanding the role of liquid-liquid two-phase flow, mixing and mass transfer in microchannels is of great importance for improving its industrial applications. This paper mainly focused on the liquid-liquid two-phase flow in microchannels, summarized the different flow patterns and mass transfer coefficients of the liquid-liquid two-phase flow under different operating conditions. The influence of various factors including features of microchannels, properties and flow rates of fluids on the formation of flow patterns and mass transfer coefficients were analyzed. It was pointed out that most of researches on liquid-liquid two-phase flow in microchannels were qualitative. Quantitative researches were aimed at the specific systems and the results haven a few limitations. Moreover, researches on mass transfer of liquid-liquid two-phase flow in microchannels are conducted experimentally and there are relatively few numerical simulations. Thus, the following studies should be considered to establish the database based on the fundamental researches of liquid-liquid two-phase flow. Based on the analysis of numerous data the criteria of regime classification and empirical formulas should be gained for improving its industrial applications. The numerical simulation models were deserved to develop the effective evaluation mechanisms on mass transfer efficiency in liquid-liquid two-phase flow.

Key words: liquid- liquid two-phase flow, flow regimes, mixing and mass transfer, microchannels

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