Effect of ultrasonic frequency on size distributions of nanosized mist generated by ultrasonic atomization
Effect of ultrasonic frequency on size distributions of nanosized mist generated by ultrasonic atomization
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DOI：
10.1016/j.ultsonch.2016.12.019
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发表时间：
2017-07-01
影响因子：
8.4
通讯作者：
Nii, Susumu
中科院分区：
文献类型：
--
作者：
Kudo, Takahisa;Sekiguchi, Kazuhiko;Nii, Susumu
超声雾化用于产生直径范围小于100 nm的细液雾。研究了频率对超声雾化液雾粒径分布的影响。利用宽量程粒子谱仪对超声波雾化产生的雾进行了测量，得到了双峰分布的结果。在较小的范围内，峰值直径随频率的增加而减小，雾的数浓度随频率的增加而增加。我们确定了雾的尺寸分布和超声波频率之间的关系，我们提出了一个基于水蒸气的量的超声波纳米雾的产生机理的液体柱周围。通过改变超声振荡器的表面直径来提高功率密度和功率密度，从而影响纳米雾的数量浓度和粒径分布。使用这种技术，可以通过改变超声波换能器的频率来控制雾的直径。(C)© 2016 Elsevier B.V.版权所有。
Ultrasonic atomization is used to produce fine liquid mists with diameter ranges below 100 nm. We investigated the effect of the frequency on the size distribution of ultrasonic mist. A bimodal distribution was obtained for the mist generated by ultrasonic atomization with a wide-range particle spectrometer. The peak diameter decreased with increasing frequency, and the number concentration of the mist increased in the smaller range. We determined the relation between the size distribution of the mist and the ultrasonic frequency, and we proposed a generation mechanism for the ultrasonic nanosized mist based on the amount of water vapor around the liquid column. Increasing the power intensity and density by changing the surface diameter of the ultrasonic oscillator affected the number concentration and size distribution of the nanosized mist. Using this technique, the diameter of the mist can be controlled by changing the frequency of the ultrasonic transducer. (C) 2016 Elsevier B.V. All rights reserved.