title: Bubble population phenomena in sonochemical reactor: I estimation of bubble size distribution and its number density with pulsed sonication - laser diffraction method.
abstract: To characterize the bubble populations (size and its number distribution) in a sonochemical reactor, a simple but powerful technique based on the Fraunhofer laser diffraction (LD) has been proposed. In this method, the acoustic wave disturbance to the laser probe in the sonochemical reaction field was eliminated by the temporal separation using pulsed sonication (pulsed LD). With this relatively simple strategy, the temporal development of the bubble size distribution could be evaluated by pulsed LD. A number density of bubbles was estimated by using a calibration data obtained with monosized standard particles. In addition, the effect of pulse length and a surfactant on the bubble population phenomena in a multibubble system are discussed.
authors.affiliation: National Institute of Advanced Industrial Science and Technology (AIST), Moriyama-ku, Nagoya, Japan. y.iida@aist.go.jp
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Iida
authors.forename: Muthupandian
authors.initials: M
authors.lastname: Ashokkumar
authors.forename: Toru
authors.initials: T
authors.lastname: Tuziuti
authors.forename: Teruyuki
authors.initials: T
authors.lastname: Kozuka
authors.forename: Kyuichi
authors.initials: K
authors.lastname: Yasui
authors.forename: Atsuya
authors.initials: A
authors.lastname: Towata
authors.forename: Judy
authors.initials: J
authors.lastname: Lee