Abstract
The kinetics of the clogging of filters by submicron solid aerosol particles in the diffusion mode of deposition is studied, and a method is developed for optimizing the parameters of a prefilter in a two-stage system of fine air cleaning that consists of a prefilter and a final filter. The relation of the maximum allowable pressure drop to the optimum radius of the fibers, the optimum thickness of the prefilter, and the volume of the particles captured by the system is derived. It is shown that at a fixed radius of the fibers, the dependence of the final pressure drop and the dust holding capacity on the radius of the particles has a maximum that approximately corresponds to the radius of most penetrating particles.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Burchsted, C.A., Kahn, J.E., and Fuller, A.B., Nuclear Air Cleaning Handbook. ERDA 76—21, Springfield: National Technical Information Service, 1976.
Dorman, R.G., Dust Control and Air Cleaning, Oxford: Pergamon, 1974.
Stechkina, I.B. and Kirsh, V.A., Optimization of the Parameters of Aerosol Fibrous Filters, Kolloidn. Zh., 2001, vol. 63, no. 4, p. 517.
Stechkina, I.B. and Kirsh, V.A., Optimization of the Parameters of Filters in the Multistage System of Fine Cleaning of Gases, Teor. Osn. Khim. Tekhnol., 2003, vol. 37, no. 3, p. 238.
Kirsh, V.A., Aerosol Filters Made of Porous Fibers, Kolloidn. Zh., 1996, vol. 58, no. 6, p. 786.
Kirsh, V.A., Calculation Method for Calculating an Increase in the Pressure Drop in an Aerosol Filter under Conditions of Clogging by Solid Particles, Kolloidn. Zh., 1998, vol. 60, no. 4, p. 480.
Kirsch, V.A., Inertial Deposition of Aerosol Particles in a Model Filter with Dustioaded Fibres, J. Filtr. Soc., 2002, vol. 2, no. 4, p. 109.
Khudyakov, S.V. and Stechkina, I.B., Clogging of Filters in Diffusion Deposition, Teor. Osn. Khim. Tekhnol., 1992, vol. 26, no. 3, p. 431.
Payatakes, A.C., Model of the Dynamic Behavior of a Fibrous Filter, Powder Techn, 1976, vol. 14, p. 267.
Kanaoka, C., Performance of an Air-Filter at Dust-Loaded Condition, in Advances in Aerosol Filtration, Spurny, K.R., Ed., Boca Raton, FL: CRC, 1998, p. 326.
Kirsch, A.A and Stechkina, I.B, The Theory of Aerosol Filtration with Fibrous Filters, in Fundamentals of Aerosol Science, Shaw, D.T., Ed., New York: Wiley, 1978, p. 165.
Kirsch, A.A. and Lahtin, I.B., Gas How in High-Porous Layers of High-Dispersed Particles, J. Colloid Interface Sci., 1975, vol. 52, no. 2, p. 270.
Kirsh, V.A., Deposition of Aerosol Nanoparticles in Fibrous Filters, Kolloidn. Zh., 2003, vol. 65, no. 6, p. 795.
Kirsh, V.A., Deposition of Aerosol Nanoparticles in Filters Made of Fibers with Porous shells, Kolloidn. Zh., 2007, vol. 69, no. 5, p. 609.
Gupta, A, Novick, VJ., Biswas, P., et al., Effect of Humidity and Particle Hydroscopicity on the Mass Loading Capacity of High-Efficiency Particulate Air (HEPA) Filters, Aerosol Sci. Technol., 1993, vol. 19, no. 1, p. 94.
Rembor, H.J. and Kasper, G., Measurements of Spatial Distribution of Deposited Particle Mass in Fibrous Filters, Proc. 4th Eur. Symp. on the Separation of Particles from Gases (PARTEC 98). Nurnberg, 1998, p. 4.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.A. Kirsh, I.B. Stechkina, 2010, published in Teoreticheskie Osnovy Khimicheskoi Tekhnologii, 2010, Vol. 44, No. 1, pp. 78–87.
Rights and permissions
About this article
Cite this article
Kirsh, V.A., Stechkina, I.B. Kinetics of the clogging and optimization of prefilters in a two-stage air cleaning system. Theor Found Chem Eng 44, 76–85 (2010). https://doi.org/10.1134/S0040579510010100
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0040579510010100