Numerical study on hygroscopic material drying in packed bed
Апстракт
The paper addresses numerical simulation for the case of convective drying of hygroscopic material in a packed bed, analyzing agreement between the simulated and the corresponding experimental results. In the simulation model of unsteady simultaneous one-dimensional heat and mass transfer between gas phase and dried material, it is assumed that the gas-solid interface is at thermodynamic equilibrium, while the drying rate of the specific product is calculated by applying the concept of a "drying coefficient". Model validation was clone on the basis of the experimental data obtained with potato cubes. The obtained drying kinetics, both experimental and numerical, show that higher gas (drying agent) velocities (flow-rates), as well as lower equivalent grain diameters, 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.
Кључне речи:
Heat and mass transfer / Mathematical model / SimulationИзвор:
Brazilian Journal of Chemical Engineering, 2011, 28, 2, 273-284Издавач:
- Brazilian Soc Chemical Eng, Sao Paulo
DOI: 10.1590/S0104-66322011000200012
ISSN: 0104-6632
WoS: 000291123900012
Scopus: 2-s2.0-79960497606
Институција/група
Poljoprivredni fakultetTY - JOUR AU - Stakić, M. AU - Banjac, M. AU - Urošević, Tijana PY - 2011 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/2607 AB - The paper addresses numerical simulation for the case of convective drying of hygroscopic material in a packed bed, analyzing agreement between the simulated and the corresponding experimental results. In the simulation model of unsteady simultaneous one-dimensional heat and mass transfer between gas phase and dried material, it is assumed that the gas-solid interface is at thermodynamic equilibrium, while the drying rate of the specific product is calculated by applying the concept of a "drying coefficient". Model validation was clone on the basis of the experimental data obtained with potato cubes. The obtained drying kinetics, both experimental and numerical, show that higher gas (drying agent) velocities (flow-rates), as well as lower equivalent grain diameters, 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. PB - Brazilian Soc Chemical Eng, Sao Paulo T2 - Brazilian Journal of Chemical Engineering T1 - Numerical study on hygroscopic material drying in packed bed EP - 284 IS - 2 SP - 273 VL - 28 DO - 10.1590/S0104-66322011000200012 ER -
@article{ author = "Stakić, M. and Banjac, M. and Urošević, Tijana", year = "2011", abstract = "The paper addresses numerical simulation for the case of convective drying of hygroscopic material in a packed bed, analyzing agreement between the simulated and the corresponding experimental results. In the simulation model of unsteady simultaneous one-dimensional heat and mass transfer between gas phase and dried material, it is assumed that the gas-solid interface is at thermodynamic equilibrium, while the drying rate of the specific product is calculated by applying the concept of a "drying coefficient". Model validation was clone on the basis of the experimental data obtained with potato cubes. The obtained drying kinetics, both experimental and numerical, show that higher gas (drying agent) velocities (flow-rates), as well as lower equivalent grain diameters, 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.", publisher = "Brazilian Soc Chemical Eng, Sao Paulo", journal = "Brazilian Journal of Chemical Engineering", title = "Numerical study on hygroscopic material drying in packed bed", pages = "284-273", number = "2", volume = "28", doi = "10.1590/S0104-66322011000200012" }
Stakić, M., Banjac, M.,& Urošević, T.. (2011). Numerical study on hygroscopic material drying in packed bed. in Brazilian Journal of Chemical Engineering Brazilian Soc Chemical Eng, Sao Paulo., 28(2), 273-284. https://doi.org/10.1590/S0104-66322011000200012
Stakić M, Banjac M, Urošević T. Numerical study on hygroscopic material drying in packed bed. in Brazilian Journal of Chemical Engineering. 2011;28(2):273-284. doi:10.1590/S0104-66322011000200012 .
Stakić, M., Banjac, M., Urošević, Tijana, "Numerical study on hygroscopic material drying in packed bed" in Brazilian Journal of Chemical Engineering, 28, no. 2 (2011):273-284, https://doi.org/10.1590/S0104-66322011000200012 . .