Dynamical Characteristics of Interaction between Water Droplet and Aerosol Particle in Dedusting Technology
With the rapid development of national modern industry, people begin to pay attention to environmental pollution and harm caused by industrial dust. Based on above, a numerical study on the dedusting technology of industrial environment was conducted. The dynamic models of multicomponent particles collision and coagulation, breakage and deposition are developed, and the interaction of water droplet and aerosol particle in 2-Dimension flow field was researched by Eulerian-Lagrangian method and Multi-Monte Carlo method. The effects of the droplet scale, movement speed of droplet and the flow field structure on scavenging efficiency were analyzed. The results show that under the certain condition, 30μm of droplet has the best scavenging efficiency. At the initial speed 1m/s of droplets, droplets and aerosol particles have more time to interact, so it has a better scavenging efficiency for the particle.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1127858Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 545
 Xu Licheng，Sun Heping. The fine water mist dust theory and application, Building Energy & Environment，1996(4): 16~18
 Zhang Xiaoyan. Design and experimental study of dusting system by fine water-spray, Industrial Safety and Environmental Protection,2001, 27(8): 1~4
 Balachandran, W. Jaworek, A., Krupa, A. Efficiency of smoke removal by charged water droplets, Journal of Electrostatics, 2003, 58(3-4): 209~220
 Tawatchi Charinpanitku, Wiwut Tanthapanichakoon. Deterministic model of open-space dust removal system using water spray nozzle: Effects of polydispersity of water droplet and dust particle, Separation and Purification Technology, 2011, 77( 3):382~388
 Fan S. M., Walter J. Implications of droplet nucleation to mineral dust aerosol deposition and transport. Geophysical Research Letters, 2005,32, L10805, doi:10.1029/2005GL022833, pp. 1~4
 Zhao Hai-bo, Zheng Chu-guang. Dynamics balance model on evolution process of discrete system, Science Press,2008,04
 Ding Jue Wang Qingtao Liu Yi. Numerical study on the growth process of secondary aerosol in the fog. Chinese Journal of Theoretical and Applied Mechanics. 2013,45(2): 164-170
 Jung, C. H., Kim, Y. P., Lee, K. W., A moment model for simulating raindrop scavenging of aerosols. Journal of Aerosol Science. 2003, 34(9): 1217~1233
 Jung, C. H., Kim, Y. P., Lee, K. W., Analytic solution for polydispersed aerosol dynamics by a wet removal process, Journal of Aerosol Science. 2002, 33(5): 753~767.
 Slinn, W. G. N., Precipitation scavenging//Raderson D, editor. Atmospheric Sciences and Power Production. Washington DC: Division of Biomedical Environmental Research, US Department of Energy, 1983.