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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2011, Vol. 12 Issue (4): 247-254    DOI: 10.1631/jzus.A1000155
Applied Physics & Chemical Engineering     
Studies of ultrasonic dehydration efficiency
Vladimir N. Khmelev, Andrey V. Shalunov, Roman V. Barsukov, Denis S. Abramenko, Andrey N. Lebedev
Biysk Technological Institute (Branch) Altai State Technical University, Biysk 659305, Russia
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Abstract  The aim of this investigation was to define the effectiveness of non-contact drying using ultrasonic vibrations. Disk radiators were used for carrying out experiments, and a special drying chamber was designed to provide resonant amplification of ultrasonic vibrations (from 130 to 150 dB). Drying of ginseng and other vegetables demonstrated that the application of ultrasonic vibrations reduced power inputs by 20% in comparison with convective drying. It also led to a decrease of 6% in final moisture content, if the duration of drying was constant. The level of intensification of ultrasonic drying was high (up to 50 g for 1 kg of drying material), which helped to lower the temperature of the drying agent and improve the quality of the dried products.

Key words： Drying      Ultrasound      Vibration system      Drying chamber      Processing (treatment) of agricultural products     
Received: 09 April 2010      Published: 11 April 2011
CLC:  TB559  
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Articles by authors
Vladimir N. Khmelev
Roman V. Barsukov
Andrey V. Shalunov
Denis S. Abramenko
Andrey N. Lebedev
Cite this article:

Vladimir N. Khmelev, Andrey V. Shalunov, Roman V. Barsukov, Denis S. Abramenko, Andrey N. Lebedev. Studies of ultrasonic dehydration efficiency. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(4): 247-254.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1000155     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2011/V12/I4/247

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