Influence of He and Ar Flow Rates and NaCl Concentration on the Size Distribution of Bubbles Generated by Power Ultrasound
Pflieger, R, Lee, J, Nikitenko, SI and Ashokkumar, M (2015) Influence of He and Ar Flow Rates and NaCl Concentration on the Size Distribution of Bubbles Generated by Power Ultrasound Journal of Physical Chemistry B Materials, 119 (39). pp. 12682-12688.
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A technique based on pulsed ultrasound and sonoluminescence emission was used to measure the size and size distribution of bubbles generated by 355 kHz power ultrasound under continuous Ar or He flow in aqueous NaCl solutions. It was observed that the bubble size strongly decreased with increasing NaCl concentration and that this decrease was much stronger than in solutions presaturated with Ar or He. This size decrease is attributed to the combination of the salting-out effect of the salt and the introduction of bubble nuclei by the continuous gas flow. Besides, the comparison of Ar and He bubbles underlines the effect of the gas diffusion coefficient on the bubble size reached.
|Divisions :||Faculty of Engineering and Physical Sciences > Chemical and Process Engineering|
|Date :||10 September 2015|
|Identification Number :||10.1021/acs.jpcb.5b08723|
|Additional Information :||Full text not available from this repository|
|Depositing User :||Symplectic Elements|
|Date Deposited :||18 Jul 2016 15:03|
|Last Modified :||18 Jul 2016 15:03|
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