Temperature Dependence Of Heterogeneous Nucleation Of Water Vapor on Ag and NaCl Particles

Agnieszka Kupc, Paul M. Winkler, Aron Vrtala, Paul E. Wagner

Publications: Contribution to bookContribution to proceedings

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 languageEnglish
Title of host publicationNUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference
EditorsPJ DeMott, CD ODowd
Place of PublicationMELVILLE
PublisherAmerican Institute of Physics
Pages274-277
Number of pages4
ISBN (Print)978-0-7354-1152-4
DOIs
Publication statusPublished - 2013
Event19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA) - Fort Collins, Colorado State University, Fort Collins, Colombia
Duration: 23 Jun 201328 Jun 2013
http://chem.atmos.colostate.edu/icnaa/

Publication series

SeriesAIP Conference Proceedings
Volume1527
ISSN0094-243X

Conference

Conference19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA)
Country/TerritoryColombia
CityFort Collins
Period23/06/1328/06/13
Internet address

Austrian Fields of Science 2012

  • 105204 Climatology
  • 105206 Meteorology
  • 105904 Environmental research

Keywords

  • heterogeneous nucleation
  • temperature dependence
  • SANC
  • water vapor

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