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Structure and Filter Characteristics of Nonwoven Air-Filter Media  

Lee, Jin-Ah (Department of Organic Materials and Textile System Engineering, Chungnam National University)
Joo, Chang-Whan (Department of Organic Materials and Textile System Engineering, Chungnam National University)
Publication Information
Textile Science and Engineering / v.47, no.2, 2010 , pp. 133-140 More about this Journal
Abstract
Various air-filter media by using meltblown (MB) and spunbond (SB) nonwovens were structurally designed with different laying methods to obtain the relationship between structure and characteristic of air filters. Air permeability, pore size, filter efficiency and pressure drop of the designed filter media were investigated experimentally. The layer sequences of designed media showed significant factor on filter efficiency and pressure drop. The optimum filter media was determined as two layer structural design composed of calendering SB and MB nonwovens. In addition, a model equation to predict the pressure drop and filter efficiency of air filter media based on nonwovens was developed. The calculated values from the equation showed good agreement with experimental ones.
Keywords
air filter media; meltblown; spunbond; pressure drop; filter efficiency; quality factor;
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1 M. Nifuku, Y. Zhou, A. Kisiel, T. Kobayashi, and H. Katoh, "Charging Characteristics for Electret Filter Materials", J Electrostatics, 2001, 51-52, 200-205.   DOI   ScienceOn
2 D. Thomas，P. Penicot，P. Contal, D. Leclerc, and J. Vendel, "Clogging of Fibrous Filters by Solid Aerosol Particles: Experimental and Modeling Study", Chem Eng Sci, 2001, 56, 3549-3561.   DOI   ScienceOn
3 P. Contal, J. Simao, D. Thomas，T. Frising, S. Calle, J. C. A. Collin, and D. Bemer, "Clogging of Fibre Filters by Submicron Droplets: Phenomena and Influence of Operating Conditions", J Aerosol Sci, 1999, 35(2), 245-262.
4 C. N. Davies, "The Separation of Airborne Dust and Mist Particles", Proc Inst Mech Eng, 1952, pp.185-198.
5 P. Penicot, D. Thomas，P. Contal, D. Leclerc, and J. Vendel, "Clogging of HEPA Fibrous Filters by Solid and Liquid Aerosol Particles: an Experimental Study", Filtration & Separation, 1999, 36(2), 59-64.   DOI   ScienceOn
6 T. Frising, D. Thomas, D. Bemer, and P. Contal, "Clogging of Fibrous Filters by Liquid Aerosol Particles: Experimental and Phenomenological Modelling Study", Chem Eng Sci, 2005, 60(10), 2751-2762.   DOI   ScienceOn
7 S. Kuwabara, "The Forces Experienced by Randomly Distributed Parallel Circular Cylinders or Spheres in Viscous Flow at Small Reynolds Numbers", J Physical Soc Japan, 1959, 14(4), 527-532.   DOI
8 J. Happel, "Viscous Flow in Arrays of Cylinders", Am Inter Chem Eng J, 1959, 5(2), 174-177.   DOI
9 W. Bergman， R. D. Taylor, H. H. Miller, A. H. Biermann, H. D. Hebard, R. A. Da Roza, and B. Y. Lum, Enhanced Filtration Program at LLNL, 15th DOE Nuc1ear Air Cleaning Conf., Boston, 1978.
10 T. Frising, D. Thomas，P. Contal, D. Bemer, and D. Leclerc, "Influenece of Filter Fibre Size Distribution on Fílter Efficiency Calculations", Transactions of the Institution of Chem Eng, 2003, 81(part A), 1179-1184.   DOI
11 C. Kanaoka and S. Hiragi, "Pressure Drop of Air Filter with Dust Load", J Aerosol Sci, 1990, 21, 127-137.   DOI   ScienceOn
12 D. L. Myers and B. D. Arnold, "Electret Media for HVAC Filtration Applications", Int Nonwoven J, Winter, 2003, 12, 43-54.
13 T. A. Witten and L. M. Sander, "Diffusion-limited Aggregation", Phys Rev, 1983, 27(9), 5686-5697.   DOI
14 G. G. Chase and D. H. Reneker, "Nanofibers in Filter Media", Fluid/Particle Separation J, 2004, 16(2), 105-117.
15 K. W. Lee and B. Y. Liu, "Theoretical Study of Filtration by Fibrous Filters", Aerosol Sci and Tech, 1982, 1(2), 147-161.   DOI   ScienceOn
16 C. E. Billings, "Effects of Particle Accumulation in Aerosol Filtration", Doctoral Thesis, California Institute of Technology, Pasadena, USA, 1966.
17 A. C. Payatakes and L. Gradon, "Dendritic Deposition of Aerosols by Convective Brownian Diffusion for Small, Intermediate and High Particle Knudsen Numbers", American Int Chem Eng J, 1979, 26(3), 443-454.
18 A. C. Payatakes and K. Okuyama, "Effects of Aerosol Particle Deposition on the Dynamic Behavior of Uniform of Multilayer Fibrous Filter", J Colloid Inter Sci, 1982, 88(1), 55-78.   DOI   ScienceOn
19 Q. Wang, B. Maze, H. V. Tafreshi, and B. Pourdeyhimi, "A Case Study of Simulating Submicron Aerosol Filtration via Lightweight Spun-bonded Filter Media", Chem Eng Sci, 2006, 61(15), 4871-4883.   DOI   ScienceOn
20 K. Graham，H. S. Gibson, and M. Gogins, "Incorporation of Electrospun Nanofibers into Functional Structure", Int Nonwovens J, 2004, 13(2), 21-27.