Accession Number:

ADA276403

Title:

Air Distribution in Protective Shelters

Descriptive Note:

Methodology rept. Feb-Nov 1993

Corporate Author:

ARMY DUGWAY PROVING GROUND UT

Personal Author(s):

Report Date:

1993-11-01

Pagination or Media Count:

44.0

Abstract:

During tests of a chemical andor biological protective shelter, concentration measurements are usually made within the shelter to determine if a contaminant can infiltrate from the outside andor ensure that the shelters filtration system is effectively removing any contaminant released within it. A Test Operations Procedure TOP is needed to provide guidance on where to sample for the highest contaminant concentrations within a protective shelter. Development of this TOP requires a mathematical model that can describe the air circulations within enclosures and the resulting contaminant distributions. Little information is available on the turbulence-driven diffusion processes within enclosures. Factors such as a biological receptors intermittent exposure to high concentrations of toxic vapors and the resulting nonlinear physiological response must be considered during model development. Capabilities of available indoor air quality and fluid dynamics models are reviewed, and recently developed fast-response gas concentration and turbulence measuring instruments are tested in an enclosure. It is recommended that a working group consisting of both modelers and experimentalists be formed to address TOP modeling and measurement requirements. Protective shelter, Airborne contaminant, Dosage, Enclosure, Concentration, Dosement, Air distribution, Indoor air quality, Toxic load.

Subject Categories:

  • Computer Programming and Software
  • Structural Engineering and Building Technology
  • Chemical, Biological and Radiological Warfare

Distribution Statement:

APPROVED FOR PUBLIC RELEASE