Natural gas fueling of a 2. 5 liter spark ignited engine

Journal Article · Tue Jan 01 04:00:00 EST 1991 · International Journal of Energy-Environment-Economics; (United States)

OSTI ID:5327030

Bell, S R ^[1]

---

1. Univ. of Alabama, Dept. of Mechanical Engineering, Tuscaloosa, AL (US)

The study of natural gas as a vehicular fuel is motivated by economic, strategic and environmental reasoning. This paper reports performance characteristics of a conventional spark ignited engine operated over a range of throttle settings and engine speeds. Some limited emissions data is also presented and discussed. For natural gas operation, two fueling conditions were investigated corresponding to fueling required for producing maximum brake torque performance of the engine and lean fueling determined by audible misfire. Findings of this study include (1) the brake power performance of the engine was only moderately decreased with natural gas fueling, (2) the fuel conversion efficiency for the engine was similar for gasoline and natural gas fueling, (3) the NO{sub x} emission characteristics were strongly affected by the operating conditions of the engine and showed significant reduction at leaner conditions and (4) CO{sub 2} concentrations in the exhaust gas were reduced for natural gas fueling.

• OSTI ID: 5327030
• Journal Information: International Journal of Energy-Environment-Economics; (United States), Journal Name: International Journal of Energy-Environment-Economics; (United States) Vol. 1:1; ISSN IJEEE
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030400 -- Natural Gas-- Products & By-Products
33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
330800* -- Emission Control-- Alternative Fuels
AIR POLLUTION ABATEMENT
AUTOMOTIVE FUELS
BRAKES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
ECONOMICS
EFFICIENCY
EMISSION
ENERGY SOURCES
ENGINES
ENVIRONMENT
EXHAUST GASES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUEL-AIR RATIO
FUELS
GAS FUELS
GASEOUS WASTES
GASES
GASOLINE
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
MACHINE PARTS
NATURAL GAS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
SPARK IGNITION ENGINES
WASTES