اريانا اكبري

Airborne Power Ultrasonic is a green technology that has great potential for using in food and the environment. The goal of this technology is to create temporary or permanent changes in the media, objects and materials by propagating of high-intensity ultrasonic waves through air and multi-phase media. In particular, the nonlinear effects produced in such media are the reason for the beneficial result of ultrasonic in airborne power ultrasonic applications. The purpose of this project is to design and manufacture ultrasonic airborne to produce high power ultrasonic waves in the air.At first, articles which are related to design and application of this technology has been studied. Then, with the aim of product modeling, simulation of Airborne modal analysis (designed in SolidWorks software) was performed in ANSYS Workbench software. At this step, modeling was performed with the aim of achieving a specific frequency and removing the shapes of untuned modes around this frequency. Based on the simulation results, a designed airborne was made. The media of ultrasound propagation in air was also simulated by COMSOL software. After assembling the Airborne on the transducer and ultrasonic booster, experimental tests were performed to eva‎luate the behavior and performance of the system, including impedance analysis, impact test and Airbone vibration amplitude test. Finally, Airborne sound pressure measurement and acoustic field test was performed by microphone and high frequency recording system. The test results show the appropriate accuracy of the modal design to achieve a frequency near to 20 kHz and the distance of untuned frequencies. Also, the vibration amplitude measurement test data show the closeness of the simulation diagram to the experimental test.

فراصوت توان بالا , خشك كردن مواد غذايي

High Power Ultrasonic , food drying

Ariyana Akbari

Dr. Rezvan Abedini