This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Aldehyde and Unburned Fuel Emissions from Methanol-Fueled Heavy-Duty Diesel Engines
Annotation ability available
Sector:
Language:
English
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 NOx 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
Topic
Citation
Lipari, F. and Keski-Hynnila, D., "Aldehyde and Unburned Fuel Emissions from Methanol-Fueled Heavy-Duty Diesel Engines," SAE Technical Paper 860307, 1986, https://doi.org/10.4271/860307.Also In
References
- Tillman R. M. Spilman O. L. Beach J. M. “Potential for Methanol as an Automotive Fuel,” SAE Paper 750118 Detroit, MI March 1975
- Smith K. D. Fong D. W. Kondoleon D. S. Sullivan L. S. “The California State Methanol Problem, Creating a Market,” Proc. VI Inter. Symp. on Alcohol Fuels Tech. 2 373 1984
- Whitten G. Z. Pullman J. B. “Methanol Fuel Substitution Can Reduce Urban Ozone,” Proc. VI Inter. Symp. on Alcohol Fuels Tech. 2 61 1981
- Research/Development “Proponents Believe Use of Methanol Could Solve Many Pollution Problems,” 63 Dec. 1981
- Toepel R. R. Bennethum J. E. Heruth R. E. “Development of the DDA 6V-92TA Methanol Fueled Coach Engine,” SAE Paper 831714 San Francisco, CA Nov. 1983
- Bennethum J. E. Srinivasan N. “Detroit Diesel Allison's Two-Stroke Cycle Compression Ignited Alcohol Engine,” Proc. VI Inter. Symp. on Alcohol Fuels Tech. 1 38 1984
- Lipari F. Swarin S. J. “Determination of Formaldehyde and Other Aldehydes in Automobile Exhaust with an Improved 2,4 Dinitrophenylhydrazine Method,” J. Chromatog. 247 297 1982
- Perez J. M. Lipari F. Seizinger D. E. “Cooperative Development of Analytical Methods for Diesel Emissions and Particulates - Solvent Extractables. Aldehydes, and Sulfate Methods,” SAE Paper 840413 Detroit, MI March 1984
- Smith L. R. Urban C. M. “Characterization of Exhaust Emissions from Methanol and Gasoline-Fueled Automobiles,” United States Environmental Protection Agency August 1982
- Hilden D. L. Parks F. B. “A Single Cylinder Engine Study of Methanol Fuel - Emphasis on Organic Emissions,” SAE Paper 760378 Detroit, MI March 1976
- Bechtold R. Pullman J. B. “Driving Cycle Economy, Emissions, and Photochemical Reactivity Using Alcohol Fuels and Gasoline,” SAE Paper 800260 Detroit, MI March 1980
- Menard H, Lee W. Bernhardt W. “Development of a Pure Methanol Fuel Car,” SAE Paper 770790 Detroit, MI March 1977
- Ebersole G. D. Manning F. S. “Engine Performance and Exhaust Emissions: Methanol vs Isooctane,” SAE Paper 720692 Detroit, MI March 1972
- Smith L. R. “Characterization of Exhaust Emissions from Alcohol-Fueled Vehicles,” Coordinating Research Council Final Report Project CAPE-30-81 Coordinating Research Council May 1985
- Ullman T. L. Hare C. T. Baines T. M. “Emissions from Direct-Injected Heavy-Duty Methanol-Fueled Engines (One Dual-Injection and One Spark-Ignited) and a Comparable Diesel Engine,” SAE Paper 820966 Detroit, MI March 1982
- Baines T. M. Somers J. H. Hellman K. H. “Effect of Fuel Variables on Diesel Emissions,” J. Air Poll. Cont. Assoc. 32 8 810 1982
- “Characterization of Sulfates, Odor. Smoke, POM, and Particulates from Light and Heavy-Duty Engines,” IX United States Environmental Protection Agency Report EPA-460/3-79-007 1979