Ultrasonic Dehydration in fluidized bed


Another approach to the application of ultrasound in drying and dehydration has been also carried out by using a transducer with a cylindrical radiator inside which a fluidized bed is created .The product to be dried is kept in suspension within such bed which is sonicated in the whole volume by the cylindrical radiator of the transducer. Such process has been experimented positively in close cooperation with the Food Technology Department (ASPA Group) of the Polytechnic University of Valencia.


 

Another approach to the application of ultrasound in drying and dehydration has been also carried out by using a transducer with a cylindrical radiator inside which a fluidized bed is created .The product to be dried is kept in suspension within such bed which is sonicated in the whole volume by the cylindrical radiator of the transducer. Such process has been experimented positively in close cooperation with the Food Technology Department (ASPA Group) of the Polytechnic University of Valencia.
Patent:

J. A. Gallego Juárez, T. Yang, F. Vazquez Martínez, J.C. Gálvez Moraleda, G. Rodríguez Corral
"Dehydration method and device"; U.S. Patent nº 6,233,844 B1, May 22, 2001

Main Publications:

J. A. Gallego Juárez, G. Rodríguez Corral, J. C. Gálvez Moraleda, T. S. Yang "A new high intensity ultrasonic technology for food dehydration"; Drying Technology, Vol 17, nº3, pp. 597-608, 1999.

S. de la Fuente-Blanco, E. Riera-Franco de Sarabia, G. Rodríguez-Corral, J. A. Gallego-Juárez; "Ultrasonic system for drying process", Ultrasonics 44, Dec. 2006, Supplement 1, e523-e527

J.V. García-Pérez, J.A. Cárcel, S. de la Fuente-Blanco, E. Riera-Franco de Sarabia, Ultrasonic drying of foodstuff in a fluidized bed: parametric study; Ultrasonics 44, Dec. 2006, Supplement 1, e539-e543

J. V. García Perez, C. Roselló, J. A. Cárcel, S. de la Fuente, A. Mulet. "Effect of air temperature on convective drying assisted by high power ultrasound" Defect and Diffusion Forum, 2006, ed: Trans. Tech. Publications, Suiza, (ISBN 3-908451-36-1), Vols.258-260, pp. 563-574

J. A. Carcel, J.V. García-Perez, E. Riera, A. Mulet, "Influence of high-intensity ultrasound on drying kinetics of Persimmon"; Drying Technology, 25, 2007, pp. 185-193.

J. A. Gallego Juárez, E. Riera, S. de la Fuente, V. M. Acosta, A. Blanco “Application of high-power ultrasound for dehydration of vegetables: process and devices: Drying Technology , 25, 2007, pp. 1893-1901.