Progress on the investigation of coal water slurry fuel combustion in a medium speed diesel engine: Part 2. Preliminary full load test

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5330426

Hsu, B D

Full load (186 kW/cyl) operation using CWS fuel at 1050 rpm has been achieved on single cylinder GE-7FDL test engine. No major changes in engine parameters were made. With normal inlet air conditions, 3-5% pilot deisel fuel, separately injected or stratified into the main coal charge, was used. Inlet air temperature had to be raised about 40/sup 0/C if no pilot diesel fuel was used. The coal burnout was about 95% and the cycle efficiency was comparable to using diesel fuel. The NO/sub x/ and CO emissions were about 1/2 of those obtained normally with deisel fuel. The maximum heat release rate was higher than diesel fuel operation which resulted in higher maximum cylinder firing pressure. The combustion characteristic and its dependence on some fuel characteristics and inlet air parameters are discussed. Increasing coal burnout while limiting maximum cylinder firing pressure is the main objective of near future studies.

• OSTI ID: 5330426
• Report Number(s): CONF-880104-
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330800 -- Emission Control-- Alternative Fuels
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
CYLINDERS
DIESEL ENGINES
DIESEL FUELS
DISPERSIONS
ENERGY SOURCES
ENGINES
FOSSIL FUELS
FUEL SLURRIES
FUELS
HEAT ENGINES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
LOW TEMPERATURE
MATERIALS
MIXTURES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PRESSURE DEPENDENCE
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
WATER