Water-gasoline fuels: their effect on spark ignition engine emissions and performance
Single-cylinder engine tests, an analytical engine cycle simulation, and automobile tests were employed to study the effects of supplementing gasoline with water for use in spark ignition engines. Factors examined include: the method of water addition (both water-in-gasoline emulsions and direct manifold water addition), antiknock characterisitics with water additione, MBT spark requirement, indicated engine efficiency, engine cooling requirement, exhaust emissions, volumetric efficiency, lean operating limit, smoke level, exhaust temperature, and vehicle driveability. Among the negative aspects of water addition were increased hydrocarbon emissions and decreased vehicle driveability. Also, the polyoxyethylene type of emulsifier used in the water-in-gasoline emulsions, gave poor fuel stability and caused a rapid buildup of engine deposits. However on the positive side, water-gasoline fuels have higher octane ratings and decrease nitric oxide emissions.
- OSTI ID:
- 7278973
- Report Number(s):
- CONF-760678-11
- Resource Relation:
- Conference: Meeting of the Society of Automotive Engineers on combined fuels and powerplant, St. Louis, Missouri, USA, 8 Jun 1976; Related Information: SAE Paper 760547
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AUTOMOTIVE FUELS
COMBUSTION PRODUCTS
PERFORMANCE TESTING
GASOLINE
ADDITIVES
SPARK IGNITION ENGINES
EXHAUST GASES
FUEL ECONOMY
ANTIKNOCK RATINGS
CARBON MONOXIDE
HYDROCARBONS
NITRIC OXIDE
SMOKES
WATER
AEROSOLS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DISPERSIONS
ENGINES
FUELS
GASEOUS WASTES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
RESIDUES
SOLS
TESTING
WASTES
330800* - Emission Control- Alternative Fuels
330701 - Emission Control- Nitrogen Oxides
330702 - Emission Control- Carbon Monoxide
330704 - Emission Control- Hydrocarbons