This content is not included in your SAE MOBILUS subscription, or you are not logged in.
The Effects of Fuel Properties and Oxygenates on Diesel Exhaust Emissions
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 1995 by SAE International in United States
Annotation ability available
The effects of diesel fuel properties (aromatic content, cetane index and T90), cetane improver, oxygenates, high boiling point hydrocarbons and aromatics distribution on diesel exhaust emissions were studied under the Japanese 10-15 test cycle and the ECE+EUDC test cycle. The test vehicle was a TOYOTA COROLLA with a natural aspirated, 2.0L displacement, IDI diesel engine.
It was demonstrated that particulate emissions are highly correlated with T90 and that NOx is affected by the aromatic content of fuel. A reduction in particulates emissions was observed in fuel with a lower cetane number by adding cetane improver, but this reduction was limited. Cetane improver had no effect on NOx emissions in the 45 # 60 cetane number range. Oxygenates reduced particulate emissions remarkably but had little effect on NOx emissions. A decrease in the soot in particulates was particularly observed. Particulate emissions seemed to be more affected by the blended oxygen content of oxygenated fuel than by its molecular structure, cetane number or boiling point. The reduction in particulates with oxygenated fuels was larger under the ECE+EUDC test cycle than the Japanese 10-15 test cycle. Di- and Triaromatics affected PM emissions more than Paraffin or Mono-aromatics.
Furthermore, the effects of our test fuels were evaluated using a DI Diesel engine. Fuel with lower T90 and lower aromatic content reduced PM by 40% in the Japanese diesel 13 mode test. Cetane improver reduced ignition delay effectively, but had no effect on PM or NOx. Oxygenated fuel reduced PM emissions, however oxygenated fuel with a low cetane number increased PM given a specific injection timing under a high load condition.
CitationTsurutani, K., Takei, Y., Fujimoto, Y., Matsudaira, J. et al., "The Effects of Fuel Properties and Oxygenates on Diesel Exhaust Emissions," SAE Technical Paper 952349, 1995, https://doi.org/10.4271/952349.
Emission Processes and Control Technologies in Diesel Engines
Number: SP-1119; Published: 1995-10-01
Number: SP-1119; Published: 1995-10-01
- Otani T. “Effects of Fuel Injection Pressure and Fuel Properties on Particulate Emissions from H.D.D.I. Diesel Engine” SAE Paper 881255 1988
- Kato T. et al. “Spray Characteristics and Combustion Improvement of D.I. Diesel Engine with High Pressure Fuel Injection” SAE Paper 890265 1989
- Aoyama T. et al. “NOx Reduction by Injection Control” SAE Paper 900637 1990
- Yokota H. et al. “Fast Burning and Reduced Soot Formation via Ultra-High Pressure Diesel Fuel Injection” SAE Paper 910225 1991
- Tow C. et al. “Reducing Particulate and NOx Emissions by Using Multiple Injections in a Heavy Duty D.I. Diesel Engine” SAE Paper 940897 1994
- Kamimoto T. “Achievement of Clean Diesel Engines with High Thermal Efficiency” JSAE 953587
- Ullman T. L. et al. “Effects of Fuel Aromatics, Cetane Number, and Cetane Improver on Emissions from a 1991 Prototype Heavy-Duty Diesel Engines” SAE Paper 902171 1990
- Lange W. W. “The Effect of Fuel Properties on Particulates Emissions in Heavy-Duty Truck Engines under Transient Operating Conditions” SAE Paper 912425 1991
- Betts W. E. et al. “The Influence of Diesel Fuel Properties on Particulate Emissions in European Cars” SAE Paper 922190 1992
- Miyamoto N. et al. “Description of Diesel Emissions by Individual Fuel Properties” SAE Paper 922221 1992
- Rosenthal M. L. et al. “The Effects of Fuel Properties and Chemistry on the Emissions and Heat Release of Low-Emission Heavy Duty Diesel Engines” SAE Paper 932800 1993
- Akasaka Y. et al. “Effects of Oxygenated Fuel and Cetane Improver on Exhaust Emissions from Heavy-Duty DI Diesel Engines” SAE Paper 942023 1994
- Liotta F. J. Jr. et al. “The Effect of Oxygenated Fuels Emissions from a Modern Heavy-Duty Diesel Engine” SAE Paper 932734 1993
- Arima T. et al. “Effect of Oxygenated Agent Addition to Diesel Fuels on Diesel Combustion and Emissions” The 12th Internal Combustion Engine Symposium Japan 1995-7
- Miyamoto N. et al. “Influence of the Molecular Structure of Hydrocarbon Fuels on Diesel Exhaust Emissions” SAE Paper 940676 1994
- Sekimoto M. et al. “Effects of Fuel Composition on Diesel Exhaust Emissions” JSAE 9433560 1994-5
- Kobayashi S. et al. “Effect of Chemical Structure of Fuel on Diesel Exhaust Emissions” JSAE 9433588 1994-5