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Modelling Ag-particle Activation and Growth in a Tsi Wcpc Model 3785 : Volume 2, Issue 5 (25/09/2009)

By Stratmann, F.

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Book Id: WPLBN0003999827
Format Type: PDF Article :
File Size: Pages 23
Reproduction Date: 2015

Title: Modelling Ag-particle Activation and Growth in a Tsi Wcpc Model 3785 : Volume 2, Issue 5 (25/09/2009)  
Author: Stratmann, F.
Volume: Vol. 2, Issue 5
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Kulmala, M., Petäjä, T., Herrmann, E., & Stratmann, F. (2009). Modelling Ag-particle Activation and Growth in a Tsi Wcpc Model 3785 : Volume 2, Issue 5 (25/09/2009). Retrieved from

Description: Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland. In this work, we modelled activation and growth of silver particles in the water-operated TSI model 3785 water condensation particle counter (WCPC). Our objective was to investigate theoretically how various effects influence the counting efficiency of this CPC. Coupled fluid and particle dynamic processes were modelled with the computational fluid dynamics (CFD) code FLUENT in combination with the Fine Particle Model (FPM) to obtain profiles of temperature, vapour concentration, nucleation rate, and particle size. We found that the counting efficiency of the TSI 3785 for small particles might be affected by the presence of larger particles. Moreover, homogeneous nucleation processes can significantly influence counting efficiency.

Modelling Ag-particle activation and growth in a TSI WCPC model 3785

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