One-dimensional Raman spectroscopy and shadowgraphy for the analysis of the evaporation behavior of acetone/water drops
One-dimensional Raman spectroscopy and shadowgraphy for the analysis of the evaporation behavior of acetone/water drops
复制标题
用于分析丙酮/水滴蒸发行为的一维拉曼光谱和阴影成像
DOI：
10.1016/j.ijheatmasstransfer.2015.05.053
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发表时间：
2015
影响因子：
5.2
通讯作者：
A. Braeuer
中科院分区：
文献类型：
--
作者：
J. Quiño;T. Hellwig;M. Griesing;W. Pauer;H.-U. Moritz;S. Will;A. Braeuer
本文报告-环境条件下-实验确定的表面回归率的声悬浮丙酮/水滴作为一个函数的混合物组成在下降的边界。作为液滴悬浮的流体是丙酮和水的混合物，在环境条件下蒸气压分别为24.5kPa和3.17kPa。如预期的，丙酮从丙酮/水滴中蒸发得比水快。已经少量的丙酮在混合物中显着增加的表面回归率的drop.Temporally和空间分辨的组合物配置文件进行了测量沿着线通过滴使用一维拉曼光谱。获得了蒸发液滴的阴影图，并由此导出了液滴的收缩率。由于一维拉曼实验具有良好的空间（120 μm）和时间（1 s）分辨率，可以跟踪液滴径向成分分布的演变，表明液滴内部的扩散过程在二元蒸发过程中起着重要作用。
This paper reports – for ambient conditions – experimentally determined surface regression rates of acoustically levitated acetone/water drops as a function of the mixture composition at the drop boundary. The fluid levitated as a drop was a mixture of acetone and water with vapor pressures of 24.5 kPa and 3.17 kPa, respectively, at ambient conditions. As expected the acetone evaporated faster from the acetone/water drop than water. Already small quantities of acetone in the mixture significantly increased the surface regression rate of the drop.Temporally and spatially resolved composition profiles were measured along a line through the drops using one-dimensional Raman spectroscopy. Shadowgraphs of the evaporating drops were acquired, from which the drop shrinkage was derived. Due to the good spatial (120 μm) and temporal (1 s) resolution of the one-dimensional Raman experiment the evolution of the radial composition profiles through the drop could be followed showing that the diffusion-process inside the drop plays an important role in the binary evaporation process.
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DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
S. Tonini;G. Cossali
通讯作者：
G. Cossali
影响因子：
3.7
作者：
Yarin, AL;Brenn, G;Tropea, C
通讯作者：
Tropea, C
影响因子：
3.9
作者：
Rossmann, Matthias;Braeuer, Andreas;Schluecker, Eberhard
通讯作者：
Schluecker, Eberhard
应用拉曼光谱对高压下两相二元系统中的质量传递进行量化：超临界二氧化碳环境中的悬垂液体溶剂滴
DOI：
10.1016/j.ijheatmasstransfer.2013.03.046
发表时间：
2013
影响因子：
5.2
作者：
A. Braeuer;O.S. Knauer;J. Quino;A. Leipertz
通讯作者：
A. Leipertz
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
Silke Biedasek;M. Abboud;H. Moritz;A. Stammer
通讯作者：
A. Stammer