TY  - JOUR
AU  - Stakić, Milan
AU  - Urošević, Tijana
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2638
AB  - The paper addresses numerical simulation for the case of convective drying of seeds (fine-grained materials) in a vibrated fluidized bed, analyzing agreement between the numerical results and the results of corresponding experimental investigation. In the simulation model of unsteady simultaneous one-dimensional heat and mass transfer between gas phase and dried material during drying process it is assumed that the gas-solid interface is at thermodynamic equilibrium, while the drying rate (evaporated moisture flux) of the specific product is calculated by applying the concept of a "drying coefficient". Mixing of the particles in the case of vibrated fluidized bed is taken into account by means of the diffusion term in the differential equations, using an effective particle diffusion coefficient. Model validation was done on the basis of the experimental data obtained with narrow fraction of poppy seeds characterized by mean equivalent particle diameter (d(S.d) = 0.75 mm), re-wetted with required (calculated) amount of water up to the initial moisture content (X-0 = 0.54) for all experiments. Comparison of the drying kinetics, both experimental and numerical, has shown that higher gas (drying agent) temperatures, as well as velocities (flow-rates), induce faster drying. This effect is more pronounced for deeper beds, because of the larger amount of wet material to be dried using the same drying agent capacity. Bed temperature differences along the bed height, being significant inside the packed bed, are almost negligible in the vibrated fluidized bed, for the same drying conditions, due to mixing of particles. Residence time is shorter in the case of a vibrated fluidized bed drying compared to a packed bed drying.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering and Processing-Process Intensification
T1  - Experimental study and simulation of vibrated fluidized bed drying
EP  - 437
IS  - 4
SP  - 428
VL  - 50
DO  - 10.1016/j.cep.2011.02.006
ER  - 

@article{
author = "Stakić, Milan and Urošević, Tijana",
year = "2011",
abstract = "The paper addresses numerical simulation for the case of convective drying of seeds (fine-grained materials) in a vibrated fluidized bed, analyzing agreement between the numerical results and the results of corresponding experimental investigation. In the simulation model of unsteady simultaneous one-dimensional heat and mass transfer between gas phase and dried material during drying process it is assumed that the gas-solid interface is at thermodynamic equilibrium, while the drying rate (evaporated moisture flux) of the specific product is calculated by applying the concept of a "drying coefficient". Mixing of the particles in the case of vibrated fluidized bed is taken into account by means of the diffusion term in the differential equations, using an effective particle diffusion coefficient. Model validation was done on the basis of the experimental data obtained with narrow fraction of poppy seeds characterized by mean equivalent particle diameter (d(S.d) = 0.75 mm), re-wetted with required (calculated) amount of water up to the initial moisture content (X-0 = 0.54) for all experiments. Comparison of the drying kinetics, both experimental and numerical, has shown that higher gas (drying agent) temperatures, as well as velocities (flow-rates), induce faster drying. This effect is more pronounced for deeper beds, because of the larger amount of wet material to be dried using the same drying agent capacity. Bed temperature differences along the bed height, being significant inside the packed bed, are almost negligible in the vibrated fluidized bed, for the same drying conditions, due to mixing of particles. Residence time is shorter in the case of a vibrated fluidized bed drying compared to a packed bed drying.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering and Processing-Process Intensification",
title = "Experimental study and simulation of vibrated fluidized bed drying",
pages = "437-428",
number = "4",
volume = "50",
doi = "10.1016/j.cep.2011.02.006"
}

Stakić, M.,& Urošević, T.. (2011). Experimental study and simulation of vibrated fluidized bed drying. in Chemical Engineering and Processing-Process Intensification
Elsevier Science Sa, Lausanne., 50(4), 428-437.
https://doi.org/10.1016/j.cep.2011.02.006

Stakić M, Urošević T. Experimental study and simulation of vibrated fluidized bed drying. in Chemical Engineering and Processing-Process Intensification. 2011;50(4):428-437.
doi:10.1016/j.cep.2011.02.006 .

Stakić, Milan, Urošević, Tijana, "Experimental study and simulation of vibrated fluidized bed drying" in Chemical Engineering and Processing-Process Intensification, 50, no. 4 (2011):428-437,
https://doi.org/10.1016/j.cep.2011.02.006 . .