Dual-fuelling of a prechamber diesel engine with natural gas

Conference · Fri Feb 01 04:00:00 EST 1985 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:5714902

Song, S; Hill, P G

The feasibility of dual-fuel operation with natural gas in a prechamber diesel engine was studied with special emphasis on fuel consumption and cylinder pressure development. The effects of air restriction, pilot diesel flow rate and injection timing were also investigated. Near full load the fuel energy consumption rate was close to that of straight diesel operation though at part load (in the absence of air restriction) the fuel energy consumption rate was relatively high. In the absence of injection timing adjustment the maximum power output of dual-fuel operation was severely limited by the maximum cylinder pressure. Retarding the injection timing is effective in reducing the maximum cylinder pressure to a safe level. The analysis of apparent energy release indicates the differences in combustion mechanism between auto-ignition of diesel fuel in straight diesel operation and propagation of flame fronts in dual-fuel operation.

• Research Organization: Dept. of Mechanical Eng., Univ. of British Columbia, Vancouver, British Columbia
• OSTI ID: 5714902
• Report Number(s): CONF-850201-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 85-DGP-3
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000* -- Petroleum-- Combustion
03 NATURAL GAS
034000 -- Natural Gas-- Combustion
33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330800 -- Emission Control-- Alternative Fuels
AIR FLOW
AUTOMOTIVE FUELS
CHEMICAL REACTIONS
COMBUSTION
CYLINDERS
DIESEL ENGINES
DIESEL FUELS
DUAL-FUEL ENGINES
ENERGY CONSUMPTION
ENERGY SOURCES
ENGINES
FEASIBILITY STUDIES
FLAME PROPAGATION
FLOW RATE
FLUID FLOW
FLUIDS
FOSSIL FUELS
FUEL CONSUMPTION
FUEL GAS
FUELS
GAS FLOW
GAS FUELS
GASES
HEAT ENGINES
IGNITION QUALITY
INTERNAL COMBUSTION ENGINES
NATURAL GAS
OXIDATION
PETROLEUM PRODUCTS
PRESSURE DEPENDENCE
THERMOCHEMICAL PROCESSES