Jaan Salm, Eduard Tamm

  • Institute of Physics, University of Tartu, 18 Ülikooli Street, Tartu, 50090, Estonia

Received: November 23, 2010
Revised: February 27, 2011
Accepted: February 27, 2011
Download Citation: ||https://doi.org/10.4209/aaqr.2010.11.0100  

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Cite this article:
Salm, J. and Tamm, E. (2011). Dependence of the Ion-Aerosol Equivalent Attachment Coefficient on the Ratio of Polar Conductivities in a Steady State. Aerosol Air Qual. Res. 11: 211-217. https://doi.org/10.4209/aaqr.2010.11.0100


 

ABSTRACT


The article discusses certain theoretical problems of the diffusion charging of aerosol particles in a bipolar ion environment. The ratio of polar conductivities, induced by cluster ions of either polarity, may vary in a wide range. New results are obtained for the calculation algorithm of the ion-aerosol equivalent attachment coefficient in a steady state. Applying the Poisson sum formula, an analytical approximation equation is derived for the ion-aerosol equivalent attachment coefficient as a function of the ratio of polar conductivities and of the particle diameter. This equation could simplify calculations of ion-aerosol interaction characteristics in the range of sufficiently large particle diameters. A possibility for the creation of a related approximation equation for the range of smaller particle diameters is briefly outlined.


Keywords: Aerosol; Ion; Attachment coefficient


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