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Collection efficiencies of large water drops collecting aerosol particles of various densities

Chate, DM and Kamra, AK (1997) Collection efficiencies of large water drops collecting aerosol particles of various densities. Atmospheric Environment, 31 (11). pp. 1631-1635.

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A laboratory experiment to study the effect of the density of aerosol material on collection efficiency of water drops, is conducted with MgSO4 and MnCl2 particles. When compared with the earlier results for NaCl and other particles, our observations show that the collection efficiency of water drops increases with increase in impaction parameter, irrespective of whether the change in impaction parameter is caused by the change in the density of particles or the size of particles/water drop. Our results are correlated through the aerodynamical diameter parameter and with earlier experimental results of other investigators for particles of different densities. The agreement between our experimental results and the theory of Slinn increases with the increase in the density or size of the particles. Moreover, our experimental results confirm the prediction of Slinn's theory that inertial impaction mechanism is dominant for smaller particles if their density is higher.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier
Uncontrolled Keywords: air pollution; air sampling; airborne particle; article; density; laboratory; particle size; priority journal, Atmospheric aerosols; Correlation methods; Density (specific gravity); Deposition; Magnesium compounds; Manganese compounds; Particles (particulate matter); Water, Precipitation scavenging; Washout, Air pollution, aerosol; droplet formation; raindrop; scavenging
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 28 Feb 2015 05:49
Last Modified: 28 Feb 2015 05:49

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