On the premixed combustion in a direct-injection diesel engine
Journal Article
·
· J. Eng. Gas Turbines Power; (United States)
The factors influencing premixed burning and the importance of premixed burning on the exhaust emissions from a small high-speed direct-injection diesel engine were investigated. The characteristics of premixed and diffusion burning were examined using a single-zone heat-release analysis. The mass of fuel burned in premixed combustion was found to be linearly related to the product of engine speed and ignition-delay time and to be essentially independent of the total amount of fuel injected. Accordingly, the premixed-burned fraction increased with increasing engine speed, with decreasing fuel-air ratio and with retarding injection timing. The hydrocarbon emissions did not correlate well with the premixed-burned fraction. In contrast, the oxides of nitrogen emissions were found to increase with decreasing premixed-burned fraction, indicating that diffusion burning, and not premixed burning, is the primary source of oxides of nitrogen emissions.
- Research Organization:
- General Motors Research Labs., Engine Research Dept., Warren, MI 48090-9055
- OSTI ID:
- 5685435
- Journal Information:
- J. Eng. Gas Turbines Power; (United States), Journal Name: J. Eng. Gas Turbines Power; (United States) Vol. 109:2; ISSN JETPE
- Country of Publication:
- United States
- Language:
- English
Similar Records
Combustion characteristics of a single-cylinder open-chamber diesel engine
Relative roles of premixed and diffusion burning in diesel combustion
Evaluation of emissions and heat-release characteristics from a simulated low-heat-rejection diesel engine
Journal Article
·
Thu Oct 01 00:00:00 EDT 1987
· J. Eng. Gas Turbines Power; (United States)
·
OSTI ID:5525526
Relative roles of premixed and diffusion burning in diesel combustion
Journal Article
·
Sat Oct 01 00:00:00 EDT 1983
· SAE Spec. Publ.; (United States)
·
OSTI ID:6552935
Evaluation of emissions and heat-release characteristics from a simulated low-heat-rejection diesel engine
Conference
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:5033720
Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
DIESEL ENGINES
DIESEL FUELS
DIFFUSION
EMISSION
ENERGY TRANSFER
ENGINES
EXHAUST GASES
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
HEAT TRANSFER
IGNITION
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
THERMAL DIFFUSION
THERMOCHEMICAL PROCESSES
THERMODYNAMICS
TIMING PROPERTIES
WASTES
330102* -- Internal Combustion Engines-- Diesel
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
DIESEL ENGINES
DIESEL FUELS
DIFFUSION
EMISSION
ENERGY TRANSFER
ENGINES
EXHAUST GASES
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
HEAT TRANSFER
IGNITION
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
THERMAL DIFFUSION
THERMOCHEMICAL PROCESSES
THERMODYNAMICS
TIMING PROPERTIES
WASTES