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RESEARCH PAPERS

The Influence of Fluid Physical Properties on Coal-Water Slurry Atomization

[+] Author and Article Information
C. F. Smith, P. E. Sojka

Gas Turbine Combustion Laboratory, Thermal Sciences and Propulsion Center, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907

J. M. Thames

U.S. Department of Energy, Morgantown Energy Technology Center, Morgantown, WV 26505

J. Eng. Gas Turbines Power 112(1), 15-20 (Jan 01, 1990) (6 pages) doi:10.1115/1.2906470 History: Received February 08, 1989; Online April 24, 2008

Abstract

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.

Copyright © 1990 by The American Society of Mechanical Engineers
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