The Whole-system Optimization and Experimental Validation of a Sonochemical Flow Cell

• Main Authors: Ru-HanYang, 楊茹涵
• Other Authors: Yi-Chun Wang
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/vwn57d

碩士 === 國立成功大學 === 機械工程學系 === 105 === Over the decades, ultrasound and sonochemical effects had been studied for accelerating and enhancing some chemical reactions. The studies and applications of sonochemistry are indeed prosperous. Therefore, this study aims at developing a high-efficiency ultrasonic flow cell by building the numerical model with COMSOL Multiphysics and associated with the optimization algorithm software MatLab. I took over previous works of my senior to consider the reason why the cavitation yield decreases as time increases. In this study, I employed COMSOL finite element method genetic algorithm to optimize ultrasonic transducers and flow cell at the same time in order to avoid the effect of the simulation accuracy. By driving homemade Langevin-type transducers with specific frequency that is controlled by LabVIEW, so that frequency can be adjust as long as the power get fewer and fewer. The results of experiments show that using LabVIEW controlling the function generator can increase the cavitation yield and the instantaneous power. Besides, it also show that acoustic field get centralized after simulating by COMSOL.