Solid Aerosol Program
Abstract
Future NBC threats may include solid aerosols as well as vapor and liquids. The goal of this research program is to develop methodology to determine solid aerosol protection factors for enclosures and to express the controlling mechanisms in model calculations. The model program calculates theoretical vapor and size-dependent solid aerosol protection factors for an enclosure with pressure-driven penetration. Current studies of particulate penetration factors and settling rates are included. The model computer program provides an interactive tool appropriate for protection estimation, parameter sensitivity studies, and test procedure design. An experimental system providing real data on the parameters relevant to the calculations has been assembled. The system can be used to produce data for model calibration, verification, and prediction as well as to construct a database of generally applicable parameter values. Together with the model program, the facility will aid in optimizing integrity testing options for shelters and vehicles. When combined with empirical data, model results to date correlate well with observed behavior. Results indicate that size-dependent filtration of particles in apertures will be Limited to the millimeter width level at pressure differentials up to only several millimeters water gauge. The extent of turbulent impaction of particles within the enclosure will strongly affect the solid aerosol protection factors. Solid aerosols, Protection factor, Enclosures, Shelters, Vehicles, Penetration, Settling, Ventilation kinetics
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1993
- Accession Number
- ADA270288
Entities
People
- Alan T. Seitzinger
- Eric Knoebel
- Steven R. Lewis
Organizations
- Edgewood Chemical Biological Center