ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Quantitative calculation of reaction performance in sonochemical reactor by bubble dynamics |
Xu Zheng (徐峥)a b, Yasuda Keiji (安田启司)b, Liu Xiao-Jun (刘晓峻)c |
a School of Physics Science and Engineering, Tongji University, Shanghai 200092, China; b Department of Chemical Engineering, Nagoya University, Nagoya 464-8603, Japan; c School of Physics, Nanjing University, Nanjing 210093, China |
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Abstract In order to design a sonochemical reactor with high reaction efficiency, it is important to clarify the size and intensity of the sonochemical reaction field. In this study, the reaction field in a sonochemical reactor is estimated from the distribution of pressure above the threshold for cavitation. The quantitation of hydroxide radical in a sonochemical reactor is obtained from the calculation of bubble dynamics and reaction equations. The distribution of the reaction field of the numerical simulation is consistent with that of the sonochemical luminescence. The sound absorption coefficient of liquid in the sonochemical reactor is much larger than that attributed to classical contributions which are heat conduction and shear viscosity. Under the dual irradiation, the reaction field becomes extensive and intensive because the acoustic pressure amplitude is intensified by the interference of two ultrasonic waves.
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Received: 12 March 2015
Revised: 24 April 2015
Accepted manuscript online:
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PACS:
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43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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43.38.+n
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(Transduction; acoustical devices for the generation and reproduction of sound)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11404245, 11204129, and 11211140039). |
Corresponding Authors:
Liu Xiao-Jun
E-mail: liuxiaojun@nju.edu.cn
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Cite this article:
Xu Zheng (徐峥), Yasuda Keiji (安田启司), Liu Xiao-Jun (刘晓峻) Quantitative calculation of reaction performance in sonochemical reactor by bubble dynamics 2015 Chin. Phys. B 24 104301
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