The prediction of auto ignition in a spark-ignited engine
Book
·
OSTI ID:5827569
A constant volume combustion simulation has been used to compute the ignition delays of pure fuels and binary fuel mixtures in air. Minima in the ignition delays were predicted by a comprehensive chemical kinetic mechanism for binary fuel mixtures with methane. A model has been developed to predict the occurrence of autoignition in a spark ignited engine. Experimental pressure data from a CFR engine were used in the model to simulate the temperature-pressure history of the end gas and to determine the time when autoignition occurred. Comprehensive chemical kinetic mechanisms were used to predict the reactions in the end gas. Methanol, methane, ethane, ethylene, propane and N-butane were used as fuels. The initial temperatures in the model were adjusted to give agreement between predicted and observed autoignition. Engine data for methane-ethane mixtures indicated a problem with the kinetic mechanism.
- OSTI ID:
- 5827569
- Report Number(s):
- SAE-TP-841337
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
330800 -- Emission Control-- Alternative Fuels
ALKANES
AUTOMOTIVE FUELS
BINARY MIXTURES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CONTROL
DISPERSIONS
ENGINES
FUEL SUBSTITUTION
FUEL-AIR RATIO
FUELS
HEAT ENGINES
HYDROCARBONS
IGNITION QUALITY
INTERNAL COMBUSTION ENGINES
KINETICS
KNOCK CONTROL
MATHEMATICAL MODELS
METHANE
MIXTURES
ORGANIC COMPOUNDS
PRESSURE DEPENDENCE
REACTION KINETICS
SIMULATION
SPARK IGNITION ENGINES
TEMPERATURE DEPENDENCE
330101* -- Internal Combustion Engines-- Spark-Ignition
330800 -- Emission Control-- Alternative Fuels
ALKANES
AUTOMOTIVE FUELS
BINARY MIXTURES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CONTROL
DISPERSIONS
ENGINES
FUEL SUBSTITUTION
FUEL-AIR RATIO
FUELS
HEAT ENGINES
HYDROCARBONS
IGNITION QUALITY
INTERNAL COMBUSTION ENGINES
KINETICS
KNOCK CONTROL
MATHEMATICAL MODELS
METHANE
MIXTURES
ORGANIC COMPOUNDS
PRESSURE DEPENDENCE
REACTION KINETICS
SIMULATION
SPARK IGNITION ENGINES
TEMPERATURE DEPENDENCE