Actions for Aerosol dispersion and coagulation from a coal-fired power plant : a three dimensional numerical model

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Aerosol dispersion and coagulation from a coal-fired power plant : a three dimensional numerical model

Author
Buckholtz, H. T.
Published
United States : [publisher not identified], 1980.
Springfield, Va. : National Technical Information Service, [approximately 1980]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Biermann, A. H.

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Summary
A computational model to simulate the dispersion and coagulation of aerosols emitted from coal-fired power plants was constructed. In modeling the dispersion of the aerosol, turbulent diffusion and wind-driven advection are treated by a finite-difference method. Molecular coagulation is incorporated in the model to follow shifts in the particle-size distribution. Particulate coagulation is mathematically described by Timiskii's equation. The relevent semi-empirical work of Smirnov is incorporated in the model to provide for the coagultion constant. Input for the model is a bimodal, particle-size distribution measured at an operating coal-fired power plant. Simulations indicate that dispersion competes against coagulation mechanisms to maintain the bimodal shaped distribution for 32 km. Turbulence and particle settling tend to enchance coagulation effects. The size-dependent spatial segregation of particles within the plume is predicted.
Report Numbers
UCRL-83887
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: W-7405-ENG-48
OSTI Identifier 5665951
Research organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
View MARC record | catkey: 45336847