Accession Number:

AD0263222

Title:

THE SAMPLING OF AEROSOLS IN A TURBULENT AIR FLOW

Descriptive Note:

Progress rept. no. 5, 1 Jun-31 Aug 1961

Corporate Author:

SYRACUSE UNIV NY

Personal Author(s):

Report Date:

1961-08-31

Pagination or Media Count:

34.0

Abstract:

The use of La Mer generator as an aerosol source was abandoned. Although the results were not useful for this study, the time spent was profitable in the over-all plan for producing monodispersed aerosols in adequate size and sufficient concentration. The variations of output with nucleizer current were noted as too low for the desired test conditions. Prior to observations of the particle size distribution and mass output from a Vaponefrin nebulizer, an evaluation was made on the spread of liquid drops on a clean glass slide. For droplets between 2 and 30 microns, the spread factor was noted to increase with size. A small scale wind tunnel is being constructed in order to evaluate the limitations and determine the calibrations of a hot wire anemometer as a counting device in an aerosol stream. By sampling isokinetically through a filter, the count obtained on the hot wire anemometer will be correlated to the true concentration. For the initial runs a nebulizer was selected as a generator for a dibutyl phthalate aerosol.

Subject Categories:

  • Hydraulic and Pneumatic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE