Variation in performance at different positions of an ultrasonic VialTweeter--A study based on various physical and chemical activities

T Joyce Tiong; Liang Ee Low; Hui Jiun Teoh; Jit-Kai Chin; Sivakumar Manickam

doi:10.1016/j.ultsonch.2015.04.033

Variation in performance at different positions of an ultrasonic VialTweeter--A study based on various physical and chemical activities

Ultrason Sonochem. 2015 Nov:27:165-170. doi: 10.1016/j.ultsonch.2015.04.033. Epub 2015 May 19.

Authors

T Joyce Tiong¹, Liang Ee Low², Hui Jiun Teoh², Jit-Kai Chin², Sivakumar Manickam³

Affiliations

¹ Manufacturing and Industrial Processes Research Division, Faculty of Engineering, University of Nottingham Malaysia Campus, 43500 Semenyih, Selangor, Malaysia; Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, 43500 Semenyih, Selangor, Malaysia. Electronic address: joyce.tiong@nottingham.edu.my.
² Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, 43500 Semenyih, Selangor, Malaysia.
³ Manufacturing and Industrial Processes Research Division, Faculty of Engineering, University of Nottingham Malaysia Campus, 43500 Semenyih, Selangor, Malaysia; Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, 43500 Semenyih, Selangor, Malaysia.

PMID: 26186833
DOI: 10.1016/j.ultsonch.2015.04.033

Abstract

Ultrasonic VialTweeter is used for the sonication of small volume samples. It contains a titanium block with 8 holes for vial insertion, to be used simultaneously for batch operation. In this investigation, the ultrasonic and sonochemical performance of ultrasonic VialTweeter has been evaluated at its different positions. Experimental results using calorimetry, ultrasonic capillary effect, sonochemiluminescence and degradation of Rhodamine B showed that the sonochemical activity differs greatly at different positions along the VialTweeter, with positions 3 and 4 showing the maximum efficiency whereas the positions 1 and 2 being the least effective positions. These results were further verified by acoustic pressure simulation, confirming that certain locations in the VialTweeter may not perform in the same way as others due to the variation in acoustic pressure at different locations.

Keywords: Acoustic pressure; COMSOL; Capillary effects; Dye degradation; Luminol; VialTweeter.

Publication types

Research Support, Non-U.S. Gov't