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| Titel |
Modelling Ag-particle activation and growth in a TSI WCPC model 3785 |
| VerfasserIn |
F. Stratmann, E. Herrmann, T. Petäjä, M. Kulmala  |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 3, no. 1 ; Nr. 3, no. 1 (2010-02-25), S.273-281 |
| Datensatznummer |
250000828
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| Publikation (Nr.) |
 copernicus.org/amt-3-273-2010.pdf |
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| Zusammenfassung |
| 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. |
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