Abstract
The first experimental study on the temperature dependence (263-288 K) of heterogeneous nucleation of water vapor on neutral insoluble Ag and soluble NaCl particles (3.5-8 nm) is presented. Heterogeneous nucleation probability was measured as a function of saturation ratio for different seed particle diameters and nucleation temperatures by means of an expansion type condensation particle counter (CPC) - the Size Analyzing Nuclei Counter (SANC). Water vapor onset saturation ratios were also determined. Results revealed an unusual temperature trend for Ag particles, while the temperature effect for NaCl seeds was found to be in qualitative agreement with theory. In order to exclude potential experimental artifacts the effect of temperature on homogeneous nucleation of water vapor was investigated as well and agreement with theoretical predictions was observed.
Original language | English |
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Title of host publication | NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference |
Editors | PJ DeMott, CD ODowd |
Place of Publication | MELVILLE |
Publisher | American Institute of Physics |
Pages | 274-277 |
Number of pages | 4 |
ISBN (Print) | 978-0-7354-1152-4 |
DOIs | |
Publication status | Published - 2013 |
Event | 19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA) - Fort Collins, Colorado State University, Fort Collins, Colombia Duration: 23 Jun 2013 → 28 Jun 2013 http://chem.atmos.colostate.edu/icnaa/ |
Publication series
Series | AIP Conference Proceedings |
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Volume | 1527 |
ISSN | 0094-243X |
Conference
Conference | 19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA) |
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Country/Territory | Colombia |
City | Fort Collins |
Period | 23/06/13 → 28/06/13 |
Internet address |
Austrian Fields of Science 2012
- 105204 Climatology
- 105206 Meteorology
- 105904 Environmental research
Keywords
- heterogeneous nucleation
- temperature dependence
- SANC
- water vapor