The performance of a spark-ignition engine fuelled with natural gas and gasoline
Book
·
OSTI ID:5745128
An experimental evaluation has been made of the power output, specific fuel consumption and thermal efficiency of a modern 4 cylinder spark ignition engine operating on gasoline and natural gas. Tests have been conducted at various speeds, spark advance angles and air-fuel rations, all at wide open throttle. Performance on gasoline and natural gas has been compared and optimum spark advance determined for natural gas operation. With natural gas operation, brake power was found to decrease by between 11.3% and 16.6% compared to gasoline operation. Brake specific fuel consumption was found to decrease with natural gas operation, although this is due to the higher calorific value of natural gas. In terms of brake thermal efficiency, operation with natural gas was found to be less efficient than with gasoline. This is due to the lower flame speed of natural gas and the proportionally higher friction losses at the reduced power levels.
- OSTI ID:
- 5745128
- Report Number(s):
- TP-840234
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
025000 -- Petroleum-- Combustion
03 NATURAL GAS
034000 -- Natural Gas-- Combustion
33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
330800 -- Emission Control-- Alternative Fuels
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
COMBUSTION
COMPARATIVE EVALUATIONS
EFFICIENCY
ENERGY CONSUMPTION
ENERGY SOURCES
ENGINES
FLUIDS
FOSSIL FUELS
FUEL CONSUMPTION
FUEL GAS
FUEL SUBSTITUTION
FUEL-AIR RATIO
FUELS
GAS FUELS
GASES
GASOLINE
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
NATURAL GAS
OXIDATION
PERFORMANCE TESTING
PETROLEUM PRODUCTS
SPARK IGNITION ENGINES
TESTING
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
025000 -- Petroleum-- Combustion
03 NATURAL GAS
034000 -- Natural Gas-- Combustion
33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
330800 -- Emission Control-- Alternative Fuels
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
COMBUSTION
COMPARATIVE EVALUATIONS
EFFICIENCY
ENERGY CONSUMPTION
ENERGY SOURCES
ENGINES
FLUIDS
FOSSIL FUELS
FUEL CONSUMPTION
FUEL GAS
FUEL SUBSTITUTION
FUEL-AIR RATIO
FUELS
GAS FUELS
GASES
GASOLINE
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
NATURAL GAS
OXIDATION
PERFORMANCE TESTING
PETROLEUM PRODUCTS
SPARK IGNITION ENGINES
TESTING
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES