Coal slurry ignition in a diesel engine simulator

Conference · Fri Mar 01 04:00:00 EST 1985

OSTI ID:5627279

Brehob, D D; Robben, F; Sawyer, R F; Sherman, P M

Compression ignition characteristics of three coal slurry fuels are compared to diesel reference fuel in a diesel engine simulator. The three slurries are 45 wt % coal (5 micrometers mean diameter) in water, diesel No. 2, and methanol carriers. Each experiment is a single, isolated combustion event. Heat transfer losses to the cold walls and mass losses past the square piston seals reduces the compressed gas temperature. Air preheating to 400/sup 0/K for the diesel, to 450/sup 0/K for the coal/methanol and coal diesel, and to 525/sup 0/K for the coal/water fuels assures ignition. Activation temperatures (E/R) of 2330/sup 0/K, 2270/sup 0/K, 2670/sup 0/K, and 3430/sup 0/K for diesel fuel, coal/diesel, coal/methanol, and coal/water slurry, respectively, are found from ignition delay measurements.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5627279
• Report Number(s): LBL-19129; CONF-8504113-1; ON: DE85010987
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330800 -- Emission Control-- Alternative Fuels
ALCOHOLS
CARBONACEOUS MATERIALS
COAL
DIESEL ENGINES
DISPERSIONS
ENERGY SOURCES
ENGINES
FOSSIL FUELS
FUEL SLURRIES
FUELS
HEAT ENGINES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
IGNITION
INTERNAL COMBUSTION ENGINES
MATERIALS
METHANOL
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
SIMULATION
SLURRIES
SUSPENSIONS
WATER