Ultrasonic Technique for Dispersed-Phase Holdup Measurements

J. C. Bonnet; L. L. Tavlarides

doi:10.1021/ie00064a032

Ultrasonic Technique for Dispersed-Phase Holdup Measurements

J. C. Bonnet, L. L. Tavlarides

Department of Biomedical & Chemical Engineering

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

An ultrasonic technique is developed to determine the dispersed-phase holdup of liquid-liquid dispersions by measuring the velocity of ultrasound in suspensions and emulsions. A time-average model is proposed which permits estimation of the dispersed-phase holdup from the overall transmission time of the sound pulses. A statistical analysis on the experimental data revealed that there is no significant difference between typical data and calculated holdup values [0.00 < 0 < 0.40] for dispersions of xylene droplets in water. Important features of this technique are (a) the ultrasonic transducers may be located on the outside of the vessel wall and (b) the transient behavior of the dispersion as well as the axial holdup profile can be accurately monitored.

Original language	English (US)
Pages (from-to)	811-815
Number of pages	5
Journal	Industrial and Engineering Chemistry Research
Volume	26
Issue number	4
DOIs	https://doi.org/10.1021/ie00064a032
State	Published - Apr 1 1987

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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N2 - An ultrasonic technique is developed to determine the dispersed-phase holdup of liquid-liquid dispersions by measuring the velocity of ultrasound in suspensions and emulsions. A time-average model is proposed which permits estimation of the dispersed-phase holdup from the overall transmission time of the sound pulses. A statistical analysis on the experimental data revealed that there is no significant difference between typical data and calculated holdup values [0.00 < 0 < 0.40] for dispersions of xylene droplets in water. Important features of this technique are (a) the ultrasonic transducers may be located on the outside of the vessel wall and (b) the transient behavior of the dispersion as well as the axial holdup profile can be accurately monitored.

AB - An ultrasonic technique is developed to determine the dispersed-phase holdup of liquid-liquid dispersions by measuring the velocity of ultrasound in suspensions and emulsions. A time-average model is proposed which permits estimation of the dispersed-phase holdup from the overall transmission time of the sound pulses. A statistical analysis on the experimental data revealed that there is no significant difference between typical data and calculated holdup values [0.00 < 0 < 0.40] for dispersions of xylene droplets in water. Important features of this technique are (a) the ultrasonic transducers may be located on the outside of the vessel wall and (b) the transient behavior of the dispersion as well as the axial holdup profile can be accurately monitored.

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Ultrasonic Technique for Dispersed-Phase Holdup Measurements

Abstract

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