Please use this identifier to cite or link to this item: https://doi.org/10.1081/DRT-120018454
Title: Use of computational fluid dynamics to evaluate alternative spray dryer chamber configurations
Authors: Huang, L.
Kumar, K.
Mujumdar, A.S. 
Keywords: Atomization
Hour-glass shape
Lantern shape
Modeling
Particle trajectories
Residence time
Turbulence model
Two phase flow
Volumetric effectiveness
Issue Date: Mar-2003
Source: Huang, L., Kumar, K., Mujumdar, A.S. (2003-03). Use of computational fluid dynamics to evaluate alternative spray dryer chamber configurations. Drying Technology 21 (3) : 385-412. ScholarBank@NUS Repository. https://doi.org/10.1081/DRT-120018454
Abstract: A computational fluid dynamic simulation study was carried out to compare the gas flow and temperature patterns as well as particle trajectories for a pressure nozzle atomized liquid slurry spray dried in four different chamber geometries. The gas and liquid conditions are held the same for all four chamber geometries. The gas flow is co-current and enters and exits centrally thus maintaining a two-dimensional axi-symmetric flow pattern. It is found that as a result of variations in the gas flow and thermal patterns in the four configurations examined (viz cylinder-on-cone, conical, hour-glass shaped, and lantern-shaped axi-symmetric) the droplet trajectories, residence times, and drying times vary. It was noted that the effective chamber volume occupied by drying particles depends on the chamber design.
Source Title: Drying Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/61648
ISSN: 07373937
DOI: 10.1081/DRT-120018454
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