A micronized de-ashed coal-water slurry (CWS) fuel of approximately 50 percent coal loading has been successfully ignited and burned in one GE 7FDL engine cylinder at 1050 rpm. For this study, only about 1/3 of the full load fuel engery was supplied due to limitations of the fuel injection equipment used. Three types of ignition methods have been investigated: compression ignition with no ignition aid; separate diesel pilot fuel injection to ignite the CWS fuel; combined CWS and pilot diesel fuel injection (stratified pilot ignition). Conditions of ignition and the burning characteristics that immediately followed using the above three ignition methods are described.
Issue Section:
Research Papers
Topics:
Coal,
Combustion,
Diesel engines,
Fuels,
Ignition,
Slurries,
Water,
Diesel,
Compression,
Engine cylinders,
Stress
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Copyright © 1988
by ASME
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