- Author
-
Mulholland, G. W.
|
McKenzie, R. L.
|
Marx, E.
|
Fletcher, R. A.
- Title
- Refractive Index and Evaporation Rate of Individual Smoke Droplets.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Journal
-
Langmuir,
Vol. 1,
No. 3,
367-372,
May/June 1985
- Book or Conf
- American Chemical Society. Chemical Physics of Aerocolloidal Particles. 188th National Meeting. August 26-31, 1984,
Philadelphia, PA,
1985
- Keywords
-
smoke
|
droplets
- Abstract
- The size and refractive index of individual smoke droplets have been measured by using a single-particle light-scattering instrument. Droplets of a given size were selected by use of a mobility classifier and then electrostatically charged. The measured scattered intensities were fitted to curves calculated from Mie theory to find the best values of the refractive indices. The refractive index of smoke from a moderately large, steady-state smolder reactor is found to be much less variable than that of cigarette smoke. Relative humidity is found to have a significant effect on the evaporation rate of the smoke droplets.