| 气液传质和反应可视化的激光诱导荧光技术 |
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| 引用本文： | 邵婷,胡银玉,王文坦,金涌,程易.气液传质和反应可视化的激光诱导荧光技术[J].化工学报,2011,62(9):2422-2426. |
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| 作者姓名： | 邵婷 胡银玉 王文坦 金涌 程易 |
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| 作者单位： | 清华大学化学工程系，北京100084 |
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| 基金项目： | 国家重点基础研究发展计划项目(2007CB714302); 国家自然科学基金项目(20776074)~~ |
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| 摘 要： | 提出了一种先进的可视化测量气液传质和反应的激光诱导荧光技术，其基本原理为利用气相中的臭氧氧化液相中的荧光物质，使用相机定量地捕捉液相中荧光物质（如罗丹明B）发出的荧光信号强度的动态变化，从而记录了气液的传质和反应过程。实验结果通过液相浓度场信息展示了液滴内部丰富的微观混合行为，尤其传递和反应行为敏感于液滴周围环境条件，如微小扰动的均匀流场、扰动强化的非均匀流场和液滴尺寸动态生长过程。直观的可视化测量方法提高了对气液传质和液滴内微观混合行为机理的理解。
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| 关 键 词： | 气液传质 液滴 反应流激光诱导荧光 可视化 微观混合 |
Visualization of gas-liquid mass transfer and reaction using laser induced fluorescence technique |
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| SHAO Ting,HU Yinyu,WANG Wentan,JIN Yong,CHENG Yi.Visualization of gas-liquid mass transfer and reaction using laser induced fluorescence technique[J].Journal of Chemical Industry and Engineering(China),2011,62(9):2422-2426. |
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| Authors: | SHAO Ting HU Yinyu WANG Wentan JIN Yong CHENG Yi |
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| Affiliation: | SHAO Ting,HU Yinyu,WANG Wentan,JIN Yong,CHENG Yi (Department of Chemical Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | A novel approach,laser induced fluorescence(LIF)technique,is proposed to visualize gas-liquid mass transfer and reaction in this work.The principle is to quantitatively capture the change of fluorescence signal intensity in liquid phase emitted by a fluorescence dye(e.g.,Rhodamine B),where the concentration of the dye varies with time and space due to a coupled reaction by ozone in gas phase.The reaction process inside the liquid phase(droplet in this work)can be recorded,integrating the process of gas-liqu... |
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| Keywords: | gas-liquid mass transfer droplet reactive-LIF visualization micromixing |
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