Aldehyde and unburned fuel emissions from methanol-fueled heavy-duty diesel engines
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- General Motors Res. Lab., Warren, MI
- OSTI Identifier:
- 5637211
- Report Number(s):
- CONF-860263-
- Resource Type:
- Conference
- Resource Relation:
- Conference: Society of Automotive Engineers international congress and exposition, Detroit, MI, USA, 24 Feb 1986
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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; 330102* - Internal Combustion Engines- Diesel; 090210 - Alcohol Fuels- Properties- (1976-1989); 330800 - Emission Control- Alternative Fuels; 500200 - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)
Citation Formats
Lipari, F, and Keski-Hynnila, D. Aldehyde and unburned fuel emissions from methanol-fueled heavy-duty diesel engines. United States: N. p., 1986.
Web.
Lipari, F, & Keski-Hynnila, D. Aldehyde and unburned fuel emissions from methanol-fueled heavy-duty diesel engines. United States.
Lipari, F, and Keski-Hynnila, D. 1986.
"Aldehyde and unburned fuel emissions from methanol-fueled heavy-duty diesel engines". United States.
@article{osti_5637211,
title = {Aldehyde and unburned fuel emissions from methanol-fueled heavy-duty diesel engines},
author = {Lipari, F and Keski-Hynnila, D},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/5637211},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1986},
month = {Wed Jan 01 00:00:00 EST 1986}
}