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Modeling and experimental validation of hydrodynamics in an ultrasonic batch reactor
Publikationstyp
Journal Article
Date Issued
2016-07-30
Sprache
English
Author(s)
Institut
TORE-URI
Journal
Volume
28
Start Page
218
End Page
229
Citation
Ultrasonics Sonochemistry (28): 218-229 (2016-07-30)
Publisher DOI
Scopus ID
Simulation of hydrodynamics in ultrasonic batch reactor containing immobilized enzymes as catalyst is done. A transducer with variable power and constant frequency (24 kHz) is taken as source of ultrasound (US). Simulation comprises two steps. In first step, acoustic pressure field is simulated and in second step effect of this field on particle trajectories is simulated. Simulation results are compared with experimentally determined particle trajectories using PIV Lab (particle image velocimetry). Effect of varying ultrasonic power, positioning and number of ultrasonic sources on particle trajectories is studied. It is observed that catalyst particles tend to orientate according to pattern of acoustic pressure field. An increase in ultrasonic power increases particle velocity and also brings more particles into motion. Simulation results are found to be in agreement with experimentally determined data.
Subjects
Enzymes
Esterification
Hydrodynamic
Sonotrode
Ultrasound