Nucleation Experiments with Monodisperse NaCl Aerosols

Author

Darryl J. Alofs, Missouri University of Science and TechnologyFollow
Max B. Trueblood, Missouri University of Science and TechnologyFollow
Daniel R. White, Missouri University of Science and TechnologyFollow
Vance Lee Behr

Abstract

Nucleation experiments with monodisperse NaCl aerosols showed good agreement with the Kohler theory relating the critical super-saturation S//c to the dry size. Aerosols produced by condensing NaCl showed the same S//c as those produced by evaporating aqueous NaCl solution droplets. This indicates that if there is an energy barrier in going from a dry NaCl particle to a solution droplet, this energy barrier is small. The fact that the evporation aerosol particles are cubical crystals and the condensation aerosols are amorphous spheres is shown to make no difference in the nucleation threshold. The investigation also gives insights into the performance of the equipment used, especially the commerical electrostatic aerosol classifier and the vertical flow thermal diffusion chamber developed in the authors laboratory.

Recommended Citation

D. J. Alofs et al., "Nucleation Experiments with Monodisperse NaCl Aerosols," Journal of Applied Meteorology, American Meteorological Society, Jan 1979.

The definitive version is available at https://doi.org/10.1175/1520-0450(1979)018<1106:NEWMNA>2.0.CO;2

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

0894-8763

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1979 American Meteorological Society, All rights reserved.

Publication Date

01 Jan 1979