Bubble population phenomena in sonochernical reactor: I Estimation of bubble size distribution and its number density with pulsed sonication - Laser diffraction method
Bubble population phenomena in sonochernical reactor: I Estimation of bubble size distribution and its number density with pulsed sonication - Laser diffraction method
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DOI：
10.1016/j.ultsonch.2009.08.018
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发表时间：
2010-02-01
影响因子：
8.4
通讯作者：
Lee, Judy
中科院分区：
文献类型：
--
作者：
Iida, Yasuo;Ashokkumar, Muthupandian;Lee, Judy
为了表征声化学反应器中气泡的大小和数量分布，提出了一种基于夫琅和费激光衍射(LD)的简单而有效的方法。在该方法中，通过脉冲超声(脉冲LID)的时间分离消除了声化学反应场中的声波对激光探头的干扰。利用这一相对简单的策略，可以通过脉冲盖子来评估气泡尺寸分布的时间发展。用单一尺寸的标准颗粒获得的校准数据估计了气泡的数密度。此外，还讨论了脉冲长度和表面活性剂对多泡体系中气泡布居现象的影响。(C)2009爱思唯尔B.V.保留所有权利。
To characterize the bubble populations (size and its number distribution) in a sonochemical reactor, a simple but powerful technique based on the Fraunhofer laser diffraction (LD) has been proposed. In this method, the acoustic wave disturbance to the laser probe in the sonochemical reaction field was eliminated by the temporal separation using pulsed sonication (pulsed LID). With this relatively simple strategy, the temporal development of the bubble size distribution could be evaluated by pulsed LID. A number density of bubbles was estimated by using a calibration data obtained with monosized standard particles. In addition, the effect of pulse length and a surfactant on the bubble population phenomena in a multibubble system are discussed. (C) 2009 Elsevier B.V. All rights reserved.