کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1266559 1496876 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling and experimental validation of hydrodynamics in an ultrasonic batch reactor
ترجمه فارسی عنوان
مدلسازی و اعتبار سنجی آزمایشگاهی هیدرودینامیک در یک راکتور دسته اولتراسونیک
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 28, January 2016, Pages 218–229
نویسندگان
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