We investigate several aspects of the numerical solution of the radiative transfer
equation in the context of coal combustion: the parallel efficiency of two commonly used
opacity models, the sensitivity of turbulent radiation interaction (TRI) effects
to the presence of coal particulate, and an improvement of the order of temporal...
The purpose of this research was to determine if it is feasible to apply Lorentz
mixing to supersonic diffusion flames, such as those found in SCRAMjet engines. The
combustion rate in supersonic diffusion flames is limited by the rate at which air and fuel
mix. Lorentz mixing increases turbulence within...
The importance of two sources of NO formation, nitrogen in combustion air
and nitrogen in the fuel, during black liquor combustion was studied using a laminar
entrained flow reactor. Pyrolysis and combustion experiments were conducted in
nitrogen atmosphere and in a mixture of argon and helium in the composition 99%...
Coal continues to be burned by direct combustion in packed or moving bed in
small size domestic furnaces, medium size industrial furnaces, as well as small power
stations. Recent stringent restrictions on exhaust emissions call for a better
understanding of the process of combustion of coal in beds.
The present...
The atmospheric fluidized bed combustor (AFBC) is an alternative to
the pulverized coal burner. The size of a utility scale AFBC would be
enormous so that the use of large particles is necessary to reduce its
size. In modeling the combustion of coal and capture of sulfur released
from the...