Aldehyde and unburned fuel emission measurements from a methanol-fueled Texaco stratified charge engine

Technical Report · Mon Apr 01 04:00:00 EST 1985

OSTI ID:5694413

Kim, C; Foster, D E

A Texaco L-163S TCCS (Texaco Controlled Combustion System) engine was operated with pure methanol to investigate the origin of unburned fuel (UBF) and formaldehyde emissions. Both continuous and time-resolved exhaust gas sampling methods were used to measure UBF and formaldehyde concentrations. Fuel impingement is believed to be an additional source of UBF emissions from this methanol-fueled TCCS engine. At increased load we believe that it is the primary source of the UBF emissions. Formaldehyde emissions were found to originate in the cylinder gases, especially at low load. However the formation of aldehydes in the exhaust port after leaving the cylinder does occur and becomes more important as the load increases. Increasing the engine load resulted in a decrease in UBF emissions but in most cases increased the formaldehyde emissions. Increased engine speed resulted in slightly increased UBF and formaldehyde emissions.

• Research Organization: Wisconsin Univ., Madison (USA)
• DOE Contract Number: AI01-81CS50006
• OSTI ID: 5694413
• Report Number(s): DOE/CS/50006-1; ON: DE85013470
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330800* -- Emission Control-- Alternative Fuels
ALCOHOL FUELS
ALDEHYDES
ENGINES
EXHAUST GASES
FLUIDS
FORMALDEHYDE
FUELS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
METHANOL FUELS
MONITORING
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
SAMPLING
STRATIFIED CHARGE ENGINES
SYNTHETIC FUELS
WASTES