Control of solid tobacco emissions in industrial fact ories applying CDF tools

G Polanco, A Quiroga, N Moreno, J Santos, L Cortes

Abstract


The emission of light solid aromatic particles from any tobacco industry affects the surrounding inhabitants, commonly causing allergies and eye irritation and, of course, uncomfortable odours, therefore, these emissions to the air must be regulated. An increasing in production must be considered in the sizing of mechanisms used to achieve the precipitation and final filtration, before discharging to the atmosphere. A numerical tool was applied to study the internal behaviour of low velocity precipitation tunnel and discharge chimney of the refuses treatment system. The characterization of the two-phase flow streamlines allows determining the velocity gradient profiles across the whole tunnel; which is intimately related with the particle concentration, and deposition zones locations. The application of CFD techniques gives the bases to find new design parameters to improve the precipitation tunnel behaviour capability to manage the increment of the mass flow of particles, due to changes in mass cigarette production.

Full Text:

PDF

References


Happel J. and Brenner H. Low Reynolds number hydrodynamics. The Hague, Martinus Nijhoff Publishers. 1983

Morsi, S. A. and Alexander A. J. An investigation of particle trajectories in two-phase flow systems. The Journal of Fluid Mechanics, 1972 (55) Issue (2): pp. 193-208.

Haider and Levenspiel O. Drag coefficient and terminal velocity of spherical and nonspherical particles. Power Technology, 1989 (58), pp. 63-70.

Lee, S. L., Lahey R. T., et al. The prediction of two-phase turbulence and phase distribution phenomena using a k-e model. J. Multiphase Flow, 1989 (3), pp. 335-368.

Crowe C. T., Troutt T. R. and Chung J. N. Numerical models for two-phase turbulent flows. Annual Reviews, 1996 (28), pp. 11-43.

Inthavong K., Tian Z.F and Tu J. Y., Effect of ventilation design on removal of particles in woodturning workstations. Building and environment. 2009 (44), Issue 1, pp. 125-136.

Thinglas, T., and Kaushal <mailto:kaushal@civil.iitd.ac.in>, D. R. Three Dimensional CFD Modeling for Optimization of Invert Trap Configuration to be used in Sewer Solid Management, Particulate Science and Technology, 2008 (26) Issue 5, pp. 507-519.




DOI: http://dx.doi.org/10.1260/1750-9548.7.4.313

Copyright (c) 2016 The International Journal of Multiphysics