Henri Delmas

TL;DR: With ultrasound, the drop size is much smaller than that given by mechanical agitation under the same conditions, which makes insonated emulsions more stable and less surfactant is required.

TL;DR: In this article, the importance of cavitation is stressed, as also is power input to the multiphase fluid, and the influence of surfactants, polymeric stabilizers, temperature, pressure, and ultrasonic parameters such as frequency, residence time, acoustic intensity, and energy density are discussed.

TL;DR: In this article, power measurements at different locations of an ultrasonic device: the power displayed at the frequency generator, the electrical power input at the transducer and the acoustic power dissipated in the liquid medium were recorded and compared for different media and different liquid heights in the reactor.

TL;DR: In this paper, an experimental study about the velocity, size and concentration of ultrasonic cavitation bubbles is presented, where a 20 kHz horn dipping vertically into a liquid container is used to provide an experimental analysis of the system.

TL;DR: An experimental investigation of the size and volumetric concentration of acoustic cavitation bubbles is presented and difficulties arising in the application of the laser diffraction technique are discussed: in particular, the fact that the acoustic wave disturbs the light scattering patterns even when there are no cavitationbubbles along the measurement volume is investigated.