Experiments with coal fuels in a high temperature diesel engine

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

OSTI ID:5420958

Likos, W E; Ryan, III, T W

The combustion of 50 wt% coal slurries, using water, diesel fuel, and methanol as carrier liquids, was investigated in a single-cylinder research engine. High temperatures were achieved in the engine cylinder using low-heat rejection engine technology, electrically heated glow plugs, and heated inlet air. Comparisons of the fuels and different methods of providing high cylinder temperature were made using cylinder pressure data and heat release calculations. Autoignition of the coal/water slurries was attained using auxiliary heat input. The burning rates of all the autoignited slurries were significantly enhanced by using a pilot injection of diesel fuel. Under some operating conditions the engine thermal efficiency was equal to diesel fuel performance. It was apparent that engines designed for coal slurry should maximize the prechamber volume.

• OSTI ID: 5420958
• 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
ALCOHOLS
BENCH-SCALE EXPERIMENTS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION CHAMBERS
COMPARATIVE EVALUATIONS
CYLINDERS
DATA
DIESEL ENGINES
DIESEL FUELS
DISPERSIONS
EFFICIENCY
ENERGY LOSSES
ENERGY SOURCES
ENGINES
FOSSIL FUELS
FUELS
HEAT ENGINES
HEAT LOSSES
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
INTERNAL COMBUSTION ENGINES
LOSSES
MATERIALS
METHANOL
MIXTURES
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
SLURRIES
SUSPENSIONS
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
WATER