This study reports the atomization behavior of coal-water slurries (CWS) at conditions typical of a gas turbine combustor. Slurry atomization characteristics were determined for a plain-jet airblast research nozzle and six slurries. Atomization quality is reported in terms of the spray’s Sauter mean diameter (SMD) and the radial distribution of fuel mass flux (patternization). The drop size data demonstrate that SMD can be predicted from a knowledge of slurry velocity, the relative velocity between the airblast air and the slurry, the air-to-fuel mass flow ratio (AFR), and the slurry rheology. Slurry rheology is represented here by a power law expression.
Issue Section:
Research Papers
Topics:
Coal,
Fluids,
Slurries,
Water,
Fuels,
Rheology,
Surface mount devices,
Combustion chambers,
Flow (Dynamics),
Gas turbines,
Nozzles
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Copyright © 1990
by The American Society of Mechanical Engineers
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