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COMPUTATIONAL MODELING AND DESIGN OF A HIGH-INTENSITY ULTRASONIC TRANSDUCER WITH EXTENSIVE RADIATOR FOR FOOD DEHYDRATION

Ultrasound-assisted convective drying is a green and sustainable technology that offers an interesting way to improve dehydration rate in agriculture products processing due to a low heating effect, and increase the quality of the preserved food. In comparison to other traditional drying technologies, this method has been proven to have the energy savings potential. A number of high-power ultrasonic transducers with extensive radiators have been proposed and used to dry heat sensitive materials and high-quality dry products. Nevertheless the design
methodology for those devices is still a troublesome process and only works with basic geometries. In this research, a simple design method for a rectangular plate of stepped profile and stepped amplification horn using a genetic algorithm optimization scheme and finite element analyses is developed...

Từ khóa: High-intensity ultrasonic, transducers, coupled fluid-structure analysis, acoustic analysis, genetic algorithm

7 p ovanketv4 19/12/2016 498 2

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