Drying spouted bed

Feng, H., Tang, J., Mattinson, D.S., and Fellman, J.K. 1999. Microwave and spouted bed drying of frozen blueberries The effect of drying and pre-treatment methods on physical properties and retention of flavor volatiles. J. Food Process. Preserv. 23, 463-479. 

Grabowski, S., Mujumdar, A.S., Ramaswamy, H.S. and Strumillo, C., Evaluation of fluidized versus spouted bed drying of baker s yeast. Drying Tech., 15 (1997) 625-634. 

Gong, Z.-X., Devahastin, S., and Mujumdar, A.S. 1997. A two-dimensional finite element model for wheat drying in a novel rotating jet spouted bed. Drying Technology—An International Journal 15 575-592. 

This model assumes that the drying of single particles in a fluidized bed is totally controlled by diffusion of moisture inside the particle. For the analysis of particulate drying, diffusion equation for spheres of an equivalent diameter can be used. Zahed and Epstein [33] developed a diffusion model for spout bed drying and later Martinez-Vera et al. [34] applied the same model for fluidized bed drying. 

This chapter is devoted mainly to the generally less accessible results on spouted bed drying obtained at the Research Institute of Chemical and Process Engineering of the Hungarian Academy of Sciences (PE MUKKI). Other results are readily available in literature. 

In the following sections, we will discuss typical SBD applications. We shall also describe briefly the operating conditions and results of spouted bed drying in laboratory- or industrial-scale units. These results may form the basis of industrial dryer designs when coupled with appropriate engineering judgment. 

C. Brereton and C.J. Lim, Spouted bed drying of sludge from metals finishing industries wastewater treatment plant. Drying Technol., 11(2) 389 (1993). 

Jezowska, A. 1993. Kinetics of drying in a cyclically shifted spouted bed. Theme issue on spouted beds. Drying TechnoL, ll(2) 319-337. 

Mujumdar AS. Recent developments in spouted bed drying. Conf. Transport Processes in Porous Media, Sao Carlos, Brazil, 1989. 

Pallai E, Szentmarjay T, Mujumdar AS. Spouted bed drying. In Mujumdar AS, ed. Handbook of Industrial Drying. 2" ed. New York Marcel Dekker, 1995, pp 453-488. 

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