...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Microfluidics and nanofluidics >Investigation on pressure drop characteristic and mass transfer performance of gas-liquid flow in micro-channels
【24h】

Investigation on pressure drop characteristic and mass transfer performance of gas-liquid flow in micro-channels

机译：微通道内气液两相流压降特性及传质性能研究

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Pressure drop characteristics and mass transfer performance of gas-liquid two-phase flow in micro-channels with different surface wettabilities were experimentally investigated. Side-entry T micro-channel mixers made of glass and polydimethylsiloxane were tested. Frictional pressure drop was found to decrease as the hydrophobicity of the channel surface increased. The flow patterns observed in the experiment were classified as slug flow and continuous gas phase flows. The modified Hagen-Poiseu-ille equation and Lockhart-Martinelli model were developed to predict the pressure drop for these two types of flow, respectively. The effect of surface wettability was heuristically incorporated in the present models which can correlate well the experimental results. Mass transfer performance was studied by the physical absorption of oxygen into de-ionized water. The results show that the volumetric mass transfer coefficients in hydrophobic micro-channels are generally higher than those in hydrophilic ones. The empirical correlations of overall volumetric mass transfer coefficients were proposed.
机译：实验研究了具有不同表面润湿性的微通道中气液两相流的压降特性和传质性能。测试了由玻璃和聚二甲基硅氧烷制成的侧入式T微通道混合器。发现摩擦压降随着通道表面的疏水性增加而减小。在实验中观察到的流型被分为弹状流和连续气相流。修改后的Hagen-Poiseu-ille方程和Lockhart-Martinelli模型被开发出来，以分别预测这两种流的压降。启发式地将表面润湿性的影响并入本模型中，这可以很好地与实验结果相关。通过将氧气物理吸收到去离子水中来研究传质性能。结果表明，疏水性微通道中的体积传质系数通常高于亲水性微通道中的传质系数。提出了整体体积传质系数的经验相关性。

著录项

  • 来源
    《Microfluidics and nanofluidics》 |2014年第2期|413-423|共11页
  • 作者

    Xi Wang; Yumei Yong; Chao Yang; Zai-Sha Mao; Dandan Li;

  • 作者单位

    National Key Laboratory of Biochemical Engineering,Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;

    National Key Laboratory of Biochemical Engineering,Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;

    National Key Laboratory of Biochemical Engineering,Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;

    National Key Laboratory of Biochemical Engineering,Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;

    National Key Laboratory of Biochemical Engineering,Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Friction pressure drop; Mass transfer; Micro-channel; Multiphase flow; Wettability;

    机译：摩擦压降;传质;微信;多相流;润湿性;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号