Abstract
Experimental investigation of the details of particle deposition in fibrous filters is extremely difficult due to the nature of the filter media. Typically, fibrous filters are composed of fibers that are only a few microns in diameter. The fibers are randomly distributed in a plane that is approximately at right angles to the flow direction with a mean spacing of the order of 10 to 100 fiber diameters. Numerical simulation of the filtration process offers an attractive alternative to the experimental approach. In this paper such a simulation will be described. The present study considers the influence of an electric field on dendrite formation. Three-dimensional graphical representations of simulations with and without an electric field are presented, and the differences in dendrite structure discussed. A comparison with a two-dimensional model is also made.
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References
C. N. Davis, Air Filtration Academic Press, London, 1973.
W. Bergman, H. Hebard, R. Taylor, and G. Lum, Electrostatic Filters Generated by Electric Fields, Proc. Second World Filtration Conference, London, 1979.
G. O. Nelson, W. Bergman, H. H. Miller, C. P. Richards, and A. H. Biermann, Enhanced Filtration, Lawrence Livermore Laboratory Report UCID-16949-76-3, 1977.
F. S. Henry and T. Ariman, Electrostatically Enhanced Fibrous Filtration of Particulates, Proc. International Symposium on Electrical and Magnetic Separation and Filtration Technology, Antwerp, Belgium, May 23–25, 1984.
K. A. Nielsenand J. C. Hill, Collection of Inertialess Particles on Spheres with Electric Forces, I & EC Fundamentals, vol. 15, pp. 149, 1976.
C. E. Billings, Effects of Particle Accumulation in Aerosol Filtration, Ph.D. Dissertation, California Institute of Technology, Pasadena, CA, 1966.
A. C. Payatakesand C. Tien, Particle Deposition in Fibrous Media with Dendrite-Like Pattern: A Preliminary Model, J. Aerosol Science, vol. 7, 85, 1976.
A. C. Payatakes, Model of the Dynamic Behavior of a Fibrous Filter Application to Case of Pure Interception During Period of Unhindered Growth, Powder Technology, vol. 14, pp. 267, 1976.
A. C. Payatakes, Model of Aerosol Particle Deposition in Fibrous Media With Dendrite-Like Pattern: Application to Pure Interception During Period of Unhindered Growth, Filtration and Separation, vol. 13, pp. 192, 1977.
A. C. Payatakes, Model of Transient Aerosol Particle Deposition in Fibrous Media With Dendrite Pattern, AIChE J., vol. 23, pp. 192, 1977.
A. C. Payatakes and L. Gordon, Dendritic Deposition of Aerosols by Convective Brownian Diffusion for Small, Intermediate and High Particle Knudsen Numbers, AIChE J., vol. 26, pp. 443, 1980.
A. G. Payatakes and L. Gordon, Dendritic Deposition of Aerosol Particles in Fibrous Media by Inertial Impaction and Interception, Chemical Engineering Science, vol. 35, pp. 1083, 1980.
C. Tien, C. S. Wang, and D. T. Barot, Chain-Like Formation of Particle Deposits in Fluid-Particle Separation, Science, vol. 196, pp. 983, 1977.
C. S. Wang, M. Beizaie,and C. Tien, Deposition of Solid Particles on a Collector: Formulation of a New Theory, AIChE J., vol. 23, pp. 879, 1977.
M. Beizaie, Deposition of Particles on a Single Collector, Ph.D. Dissertation, Syracuse University, Syracuse, NY, 1977.
S. Bhutra and A. C. Payatakes, Experimental Investigation of Dendritic Deposition of Aerosol Particles, J. Aerosol Sciences, vol. 10, pp. 445, 1979.
D. T. Barot, C. Tien, and C. S. Wang, Accumulation of Solid Particles on Single Fiber Exposed to Aerosol Flows, AIChE J., vol. 26, pp. 289, 1980.
M. B. Ranade and F. L. Chen, Particle Deposition on a Cylindrical Collector in an Electric Field, Proc. The Fine Particle Society Meeting, Honolulu, HI, 1983.
F. S. Henry and T. Ariman, “An Improved Staggered Array Model of a Fibrous Filter with Electrical Enhancement”, Proc. Int. Sym. on Recent Advances in Particulate Science and Technology, Madras, India, 1982.
F. S. Henry and T. Ariman, The Effect of Neighboring Fibers on the Electric Field in a Fibrous Filter, J. of Aerosol Science, vol. 12, pp. 137, 1981.
F. S. Henry and T. Ariman, Numerical Calculation of Particle Collection in Electrically Enhanced Fibrous Filters, Particulate Science and Technology, an International Journal, vol. 4, no. 4, pp. 455, 1986.
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© 1989 Springer-Verlag Berlin, Heidelberg
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Tousi, S., Henry, F.S., Ariman, T. (1989). Simulation of Electrically Enhanced Fibrous Filtration. In: Koh, S.L., Speziale, C.G. (eds) Recent Advances in Engineering Science. Lecture Notes in Engineering, vol 39. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83695-4_16
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DOI: https://doi.org/10.1007/978-3-642-83695-4_16
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