Water-gasoline fuels: their effect on spark ignition engine emissions and performance

Conference · Wed Dec 31 23:00:00 EST 1975

OSTI ID:7278973

Peters, B D; Stebar, R F

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
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330701 -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
330800* -- Emission Control-- Alternative Fuels
ADDITIVES
AEROSOLS
ANTIKNOCK RATINGS
AUTOMOTIVE FUELS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
COMBUSTION PRODUCTS
DISPERSIONS
ENGINES
EXHAUST GASES
FUEL ECONOMY
FUELS
GASEOUS WASTES
GASOLINE
HYDROCARBONS
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PETROLEUM PRODUCTS
RESIDUES
SMOKES
SOLS
SPARK IGNITION ENGINES
TESTING
WASTES
WATER