Knock limitations of methane-air mixtures in a turbocharged dual-fuel engine

Conference · Wed Dec 31 23:00:00 EST 1986

OSTI ID:5896832

Song, Y K; Acker, G H; Schaetzle, W J; Brett, C E

Knock limitations are investigated using natural gas, with diesel pilot ignition, as a fuel for the 3406 DI-TA Caterpillar diesel engine. Thermodynamic properties at TDC are generated by computer and compared with experimental results. Exhaust emissions are analyzed. A comparison is made of dual-fuel operation relative to diesel. Observations are made to determine the onset of knock. The onset of knock is characterized as a function of engine speed, load, inlet manifold temperature, and air-fuel ratio (A/F). The conditions at the inset of knock are determined using cylinder pressure data. The most efficient operating range is determined with knock avoidance as a prime parameter.

• OSTI ID: 5896832
• Report Number(s): CONF-8704134-
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330603* -- Vehicle Design Factors-- Engine System
ALKANES
ANTIKNOCK RATINGS
BENCH-SCALE EXPERIMENTS
BENCHMARKS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CYLINDERS
DEMONSTRATION PROGRAMS
DIESEL ENGINES
EFFICIENCY
ENERGY SOURCES
ENGINES
EXHAUST GASES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUEL-AIR RATIO
FUELS
GAS FUELS
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
METHANE
NATURAL GAS
OPERATION
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE MEASUREMENT
RESEARCH PROGRAMS
SIMULATION
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
WASTES