Accession Number:

AD0683794

Title:

AEROSOL BEHAVIOR IN HIGH PRESSURE ENVIRONMENTS

Descriptive Note:

Final scientific rept. 1 Mar 1968-28 Feb 1969

Corporate Author:

BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA

Personal Author(s):

Report Date:

1969-02-28

Pagination or Media Count:

160.0

Abstract:

The purpose of this study was to elucidate hazards to personnel arising from aerosols in high pressure helium-oxygen atmospheres utilized in deep submergence vessels. Aerosol properties of sedimentation, diffusion, agglomeration, electrification, and the slip correction factor have been extrapolated to pressures of 500 psia. The effects of the atmosphere upon aerosol filtration, electrostatic deposition, condensation and evaporation have been considered. Experiments have been performed to verify the possibility of maintaining a corona discharge in the given atmosphere for both positive and negative applied potentials. The deposition patterns of aerosols within the lung have been considered via the application of a deposition model to a range of particle sizes and pressures. The possibility of significantly increased respiratory deposition is evident.

Subject Categories:

  • Marine Engineering
  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE