This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Influence of Fuel Properties on Exhaust Emissions from Advanced Mercedes Benz Diesel Engines
Annotation ability available
Sector:
Language:
English
Abstract
Shell companies* and Mercedes-Benz have investigated the effect of diesel fuel properties on exhaust emissions in an advanced European IDI passenger car and a modern commercial vehicle DI engine. The experimental programme identified the key fuel properties that influence diesel engine emissions with specific emphasis on NOX and particulates emissions. The fuel properties investigated were density, sulphur, distillation range, cetane number, mono aromatics and polyaromatics content. With regards to the polyaromatics content, the fuels were not designed to differentiate between the effect of di- and tri+ -aromatics.
It is concluded that the fuel properties which account for the observed fuel effects on particulates emissions are sulphur, density and polyaromatics content. Monoaromatics content, cetane number and the distillation, as described by T10E, T50E and T90E, were found to have no effect on particulates emissions. Therefore total aromatics content is not helpful in describing fuel effects on emissions. The conclusions are valid for both the passenger car and the commercial vehicle engine, in the corresponding European test cycles, ECE+EUDC and ECE R49 (13-mode test) respectively.
With regards to NOX emissions in the passenger car, no significant fuel effects were observed. In the commercial vehicle engine increasing cetane number reduced NOX emissions, whereas total aromatics content had no influence on NOX emissions.
The findings provide a further contribution to the understanding of diesel fuel effects on emissions and towards defining possible diesel fuels which, in combination with current and especially advanced engine technology would give reduced emissions. In addition, it shows that the oil and motor industries can assist each other to meet future legislation, by considering both engine technology and fuel quality in conjunction, thereby ensuring that an overall balance is achieved in terms of production cost, energy/fuel consumption, fuel availability and CO2 emissions. This conclusion relates to engines as well as to fuels.
Recommended Content
Topic
Citation
Lange, W., Schäfer, A., Le'Jeune, A., Naber, D. et al., "The Influence of Fuel Properties on Exhaust Emissions from Advanced Mercedes Benz Diesel Engines," SAE Technical Paper 932685, 1993, https://doi.org/10.4271/932685.Also In
References
- MAY, H. TAUSK, H.J. OBLÄNDER, K. REGLITZ-KY, A.A. „Automotive diesel fuel, future supply and demand” Twelfth world petroleum congress 26th April 1st May 1987 Houston Texas
- FORTNAGEL, M. HARDENBERG, H.O. GAI-RING, M. „Requirements of diesel fuel quality effects of poor quality fuels” 47th midyear API refining meeting New York May 1982
- GAIRING, M. FORTNAGEL, M. SCHERER, F. 12 13 1984
- LANGE, W.W. „The effect of fuel properties on particulate emissions in heavy-duty truck engines under transient operating conditions” SAE9 12425 1991
- STRADLING, R.J. COWLEY, L.T. LANGE, W.W. MAILLARD, C. „The influence of fuel properties and test cycle procedures on the exhaust particulate emissions from light-duty diesel vehicles” I.Mech.E. Internationbal Seminar „Fuels for automotive and industrial engines London 6-7 April 1993
- COWLEY, L.T. Le'Jeune, A. Lange, W.W. „The effect of fuel composition including aromatic content on emissions from a range of heavy-duty diesel engines I.Mech.E. International seminar „Worldwide engine emissions standards and how to meet them” London 25-26 May 1993
- BARANESCU, R.A. „Influence of fuel sulphur on diesel particulate emissions” SAE 881174 1988
- BARRY, E.G. et.al. „Heavy-duty diesel engine/fuels combustion performance and emissions - a cooperative research programme” SAE 852078
- WALL, J.C. HOEKMAN, SK. „Fuel composition effects on heavy-duty particulates emissions SAE 841364
- ULLMAN, T.L. „Investigation of the effects of fuel composition and injection and combustion system type on heavy-duty diesel exhaust emissions” Coordinating Research Council Inc. 219 Perimeter Center Parkway, Atlanta, Georgia 1989
- LANGE, W.W. Richter, K. Schlögl, H. Siegmund, O. Zürner, H.J. 1992
- BETTS, W.E. FLOYSAND, S.A. KVINGE, F. „The influence of diesel fuel properties on particulate emissions in European cars” SAE 922190 1992
- RIVERS, K.J. BOOTH, M. VAN PAASSEN, C.W.C. MARRIOTT, J.M. „Future diesel fuel quality - balancing requirements” I.Mech.E. International seminar „Worldwide engine emissions standards and how to meet them” London 25-26 May 1993
- FORTNAGEL, M. Moser, P. 1992
- emission results by Mercedes-Benz