期刊
ULTRASONICS SONOCHEMISTRY
卷 20, 期 6, 页码 1345-1352出版社
ELSEVIER
DOI: 10.1016/j.ultsonch.2013.03.012
关键词
Sonochemical reactors; Reactor design; Sonochemical degradation; COMSOL multiphysics; Numerical simulation
资金
- Agency for Innovation by Science and Technology (IWT)
This paper presents a three-dimensional numercial simulation of sonochemical degradation upon cavitational activity. The model relates the simulation of the acoustic pressure distribution to the sonochemical reaction rate. As a case study, the thermal degradation of carbon tetrachloride during sonication is studied in a tubular milliscale reactor. The model is used to optimize the reactor diameter, ultrasound frequency and power dissipated to the ultrasound transducers. The results indicate that multiple transducers at a moderate power level are more efficient than one transducer with high power level. Furthermore, the average cavity volume fraction is proposed as a reaction independent parameter to estimate the optimal reactor design. Within the results obtained in this paper, it appears possible to optimise reactor design based on this parameter. (C) 2013 Elsevier B.V. All rights reserved.
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