About AAQR

Aims and Scope

Articles online
For contributors
Call for Papers
Guideline for the
Special Issue Proposal
Subscription
Information

Advertising

Contact Us
 
Search for  in   Search  Advanced search  

 

Volume 11, No. 3, June 2011, Pages 211-217 PDF(220 KB)  
doi: 10.4209/aaqr.2010.11.0100   

Dependence of the Ion-Aerosol Equivalent Attachment Coefficient on the Ratio of Polar Conductivities in a Steady State

Jaan Salm, Eduard Tamm

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

 

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.

 

 

Copyright © 2009-2014 AAQR All right reserved.