Aldehyde and unburned fuel emissions from methanol-fueled heavy-duty diesel engines

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5637211

Lipari, F; Keski-Hynnila, D

Aldehyde and unburned fuel emissions (UBF) were measured from experimental 6V-92TA and 6V-71N methanol-fueled heavy-duty diesel engines. The 6V-71N engine was tested with experimental oxidation catalytic converters. Formaldehyde accounted for 97-99% of the total aldehydes emitted from both engines. Aldehyde and unburned fuel concentrations were highest in the idle modes of the 13-mode test and decreased with increasing engine speed and load. The 13-mode weighted aldehyde and UBF emissions for the 6V-92TA engine were 0.10 G/BHP-HR and 2.01 G/BHP-HR, respectively. The 13-mode aldehyde and UBF emissions from the 6V-71N engine before catalytic treatment were 0.32 G/BHP-HR and 4.51 G/BHP-HR, respectively. These emissions were reduced to 0.19 G/BHP-HR and 1.10 G/BHP-HR with catalytic treatment. Total aldehyde emissions from the methanol-fueled engines compared favorably with the 0.07 to 0.28 G/BHP-HR range reported for heavy-duty conventionally fueld diesel engines. Formaldehyde emissions from these engines were higher than those of conventionally fueled diesel engines but similar to those of other methanol-fueled diesel engines. Particulate and NO/subX/ emissions from these engines were very low and ranged from 0.02-0.22 G/BHP-HR and 1.45-1.66 G/BHP-HR, respectively. These engines show promise for meeting the 1991 urban bus 0.10 G/BHP-HR particulate standard.

• Research Organization: General Motors Res. Lab., Warren, MI
• OSTI ID: 5637211
• Report Number(s): CONF-860263-
• Resource Relation: Conference: Society of Automotive Engineers international congress and exposition, Detroit, MI, USA, 24 Feb 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
10 SYNTHETIC FUELS
54 ENVIRONMENTAL SCIENCES
DIESEL ENGINES
EXHAUST GASES
FUEL SUBSTITUTION
METHANOL FUELS
PERFORMANCE TESTING
FORMALDEHYDE
AIR POLLUTION MONITORING
COMBUSTION PROPERTIES
NITROGEN OXIDES
PARTICULATES
BUSES
CATALYTIC CONVERTERS
COMPARATIVE EVALUATIONS
DYNAMIC LOADS
EMISSION
LEADING ABSTRACT
MEETINGS
POLLUTION REGULATIONS
ABSTRACTS
ALCOHOL FUELS
ALDEHYDES
CHALCOGENIDES
DOCUMENT TYPES
ENGINES
EQUIPMENT
FLUIDS
FUELS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION CONTROL EQUIPMENT
REGULATIONS
SYNTHETIC FUELS
TESTING
TRANSPORTATION SYSTEMS
VEHICLES
WASTES
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