Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Buoyant Line and Point Source (BLP) Dispersion Model User's Guide.
Author Schulman, Lloyd L. ; Scire, Joseph S. ;
CORP Author Environmental Research and Technology, Inc., Concord, MA.;Environmental Protection Agency, Washington, DC.
Year Published 1980
Report Number ERT-P-7304B; EPA/DF-81/001D;
Stock Number PB81-164642
Additional Subjects Air pollution ; Atmospheric diffusion ; Mathematical models ; Manuals ; Plumes ; UNAMAP models ; Buoyant Line and Point Source Dispersion model ; Air quality ; User manuals ; Line sources ; Point sources ; Aluminum plants
Library Call Number Additional Info Location Last
NTIS  PB81-164642 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 190p
The BLP dispersion model was developed specifically for aluminum reduction plants. It is part of the UNAMAP version 4 collection. Aluminum reduction plants are a complex arrangement of emission sources, composed of parallel, low-level, buoyant line sources called potrooms interspersed, typically, by short point sources. In addition to theoretical considerations, BLP is based on extensive wind tunnel simulations of two reduction plants and an SF6 field study tracer program at one of the plants. The model has been verified using two years of SO2 measurements at the second reduction plant. The major features of the BLP dispersion model are: UTM or line source oriented coordinate system; multiple point source and finite buoyant line source capability; finite buoyant line source plume rise, plume enhancement due to multiple line sources; vertical wind shear in plume rise formulations for both point and line sources; transitional plume rise; incorporation of building downwash in both dispersion and plume rise calculations for point and line sources; terrain adjustment plume path coefficients; time-dependent pollutant decay; source contribution concentrations; and flexible post-processing package.