In-cylinder sampling of high molecular weight hydrocarbons from a D. I. light duty diesel engine

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5488490

Barbella, R; Bertoli, C; Ciajolo, A; D'Anna, A; Masi, S

The formation and oxidation of soot, light and heavy hydrocarbons, CO, CO/sub 2/ and NO/sub chi/ in a D.I. diesel engine have been studied by means of direct fast sampling and chemical analysis of the combustion products collected during the combustion cycle. Particular attention hs been paid to the histories of each fuel hydrocarbon class analyzing the chemical transformations that the paraffins, and monoaromatic and polyaromatic compounds, contained in a diesel fuel oil, undergo during the combustion cycle. The concentration of the heavy hydrocarbons decreases during the early stages of the combustion cycle and their profile corresponds roughly to the fuel disappearance rate because of the chemical similarity with the fuel compounds. Paraffinic and aromatic fuel compounds undergo a rapid destruction at the time of injection of the fuel and, concurrent, the formation of oxygenated compounds has been found. The concentration of the total PAH decreases during the early stages of the combustion cycle and a preferential conversion of light alkylated PAH has been found.

• OSTI ID: 5488490
• Report Number(s): CONF-890240-
• Resource Relation: Conference: Society of Automotive Engineers international congress and exposition, Detroit, MI (USA), 27 Feb - 3 Mar 1989; Other Information: Technical Paper 890437
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
DIESEL ENGINES
EMISSION
HYDROCARBONS
CHEMICAL ANALYSIS
SOOT
AIR POLLUTION MONITORING
COMBUSTION PRODUCTS
CYLINDERS
SAMPLING
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
ORGANIC COMPOUNDS
330101* - Internal Combustion Engines- Spark-Ignition
330704 - Emission Control- Hydrocarbons
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)