Modeling the influence of active subslab depressurization (ASD) systems on airflows in subslab aggregate beds. Rept. for May-Aug 91

Technical Report · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5981343

Mosley, R B

The paper describes a simple model that allows the pressure difference in a subslab aggregate layer to be estimated as a function of radial distance from the central suction point of an active subslab depressurization (ASD) system by knowing the average size, thickness, porosity, and permeability of the aggregate, along with the total flow rate. The flow regimes may span the range from fully developed turbulence, through the transition, to Darcian flow. In order to describe the effect of ASD on radon entry the model should be coupled to a model describing flow through the soil and slab.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (United States). Air and Energy Engineering Research Lab.
• OSTI ID: 5981343
• Report Number(s): PB-91-242925/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540130* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
AIR FLOW
AIR POLLUTION
AIR POLLUTION CONTROL
CONTROL
DEPRESSURIZATION SYSTEMS
ELEMENTS
ENVIRONMENTAL TRANSPORT
FLUID FLOW
FLUIDS
GAS FLOW
GASES
INDOOR AIR POLLUTION
MASS TRANSFER
MATHEMATICAL MODELS
NONMETALS
POLLUTION
POLLUTION CONTROL
RADON
RARE GASES
SLABS
SOILS