Combustion of Coal-Water Slurry in a Two-Cycle Diesel Engine: Effects of Fuel Amount and Timing

[+] Author and Article Information
T. Uzkan, C. E. Horton

General Motors Corporation, Locomotive Group, Electro-Motive Division, LaGrange, IL 60525

J. Eng. Gas Turbines Power 112(3), 376-383 (Jul 01, 1990) (8 pages) doi:10.1115/1.2906505 History: Received August 01, 1989; Online April 24, 2008


Coal-water slurry having micronized coal particles with approximately 50 percent coal loading is successfully ignited and combusted in one cylinder of a two-cylinder 645 EMD engine by using diesel fuel pilot ignition aid. The effects of three different parameters, namely, (a) pilot timing, (b) pilot amount, and (c) CWS fuel amount, are investigated in detail. The physical trends of combustion under single parametric variations are presented in terms of the cylinder pressure, temperature, heat release rates, and cumulative heat release curves. CWS combustion with less than 5 percent of the energy of combustion coming from pilot fuel is achieved.

Copyright © 1990 by The American Society of Mechanical Engineers
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