Browse > Article
http://dx.doi.org/10.11629/jpaar.2014.10.1.027

Development of Simple Bimodal Model for Charged Particle Coagulation  

Kim, Sang Bok (Department of Eco-Machinery System, Environmental and Energy Systems Research Division Korea Institute of Machinery and Materials)
Song, Dong Keun (Department of Eco-Machinery System, Environmental and Energy Systems Research Division Korea Institute of Machinery and Materials)
Hong, Won Seok (Department of Eco-Machinery System, Environmental and Energy Systems Research Division Korea Institute of Machinery and Materials)
Shin, Wanho (Department of Eco-Machinery System, Environmental and Energy Systems Research Division Korea Institute of Machinery and Materials)
Publication Information
Particle and aerosol research / v.10, no.1, 2014 , pp. 27-31 More about this Journal
Abstract
A simple bimodal model has been developed to analyze charged particle coagulation by modifying previously suggested bimdal model for evolution of particle generation and growth. In the present model, two monodisperse modes are used and 40 charge nodes are assigned to each mode to account both change of the particle size and charge distribution. In addition, we also implemented the effect of electrostatic dispersion loss in the present model. Based on the developed model, we analyzed coagulation of asymmetric bipolar charged particles by computing evolutions of particle number concentration, geometric mean diameter of particles, charge asymmetric ratio and geometric standard deviation of particle size distribution for various initial charge asymmetric ratios. The number concentration of asymmetric bipolar charged particles decreases faster than that of neutral particles but that does not give faster growth of particles since the electrostatic dispersion loss overwhelms particle growth by coagulation.
Keywords
Charged Particles; Coagulation; Mathematical Modeling;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Adachi, M., Okuyama, K. and Kousaka Y. (1981). Electrostatic coagulation of bipolarly charged aerosol particles. J. Chem. Eng. Jpn., 14. 467-473.   DOI
2 Eliasson, B. and Egli, W. (1991). Bipolar coagulation: modeling and applications. J. Aerosol Sci., 22, 429-440.   DOI   ScienceOn
3 Friedlander, S. K. (1977) Smoke, Dust and Haze, Wiley, New York.
4 Hinds, W. C. (1982). Aerosol Technology: Properties, Behavior and Measurement of Airbone Particles. Wiley, New York.
5 Kasper, G. (1981). Electrostatic dispersion of homopolar charged aerosols. J. Colloid Interface Sci., 81, 32-.40   DOI   ScienceOn
6 Oron, A., Seinfeld, J. H. (1989) The dyanmics behavior of charged aerosols. Part III. Numerical solution by the sectional method. J. Colloid Interface Sci., 133, 66-79.   DOI
7 Vemury, S., Janzen, C. and Pratsinis, S. E. (1997) Coagulation of symmetric and asymmetric bipolar aerosols. J. Aerosol Sci., 28. 599-611.   DOI   ScienceOn
8 Jeong, J. I. and Choi, M. (2003). A simple bimodal model for the evolution of non-spherical particles undergoing nucleation, coagulation and coalesccence. J. Aerosol Sci., 34, 965-976.   DOI   ScienceOn