This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Examination of Some Measures for Improving the Performance of Gas Fuelled Diesel Engines at Light Load
Annotation ability available
Sector:
Language:
English
Abstract
The dual fuel engine is a means for utilizing gaseous fuel resources efficiently in diesel engines after appropriate conversion. These converted engines can provide an effective method for producing power while reducing exhaust emissions, especially exhaust particulates and oxides of nitrogen. More efficient and increased power output relative to the corresponding diesel operation can be achieved with dual fuel engines at relatively high load. The light load performance, especially with high gas to diesel fuel ratios, remains relatively inferior.
Poor fuel utilization efficiencies and high unburnt hydrocarbons and carbon monoxide exhaust concentrations are readily encountered at light loads. This trend has necessitated usually the resorting back to diesel operation at idling and very light load conditions. The paper describes the combustion phenomena that bring about these limitations at light load. It then sets out some guidelines that can be followed to permit improved performance and exhaust emissions of diesel engines converted to dual fuel operation when idling and at light load.
Recommended Content
Authors
Topic
Citation
Karim, G., "An Examination of Some Measures for Improving the Performance of Gas Fuelled Diesel Engines at Light Load," SAE Technical Paper 912366, 1991, https://doi.org/10.4271/912366.Also In
References
- Beck, N. J. Johnson, W.P. George, A.F. Pekison, P.W. Van der Lee, B. Klopp, G. 1989 “Electronic Fuel Injection for Dual Fuel Diesel-Methane” S.A.E. Technical Paper No. 891652
- Karim, G.A. 1987 “The Dual Fuel Engine” Automotive Engine Alternatives Evans Robert L. Plenum Press New York/London 83 104
- Karim, G.A. Klat, S.R. Moore, N.P.W. 1967 “Knock in Dual-Fuel Engines” Proc. of The Institution of Mechanical Engineers 181 453 466
- Karim, G.A. 1991 “An Examination of the Role of Formaldehyde in the Ignition Processes of a Dual Fuel Engine” S.A.E. paper presented at the Fuels and Lubricants Meeting of the S.A.E. Toronto
- Karim, G.A. Raine, R.R. Jones, W. 1988 “An Examination of Cyclic Variations in a Dual Fuel Engine” Proc. of the International Fuels and Lubricants Meeting and Exposition of the S.A.E. Portland, Oregon S.A.E. Paper No. 881661 1 9
- Karim, G.A. Jones, W. Raine, R.R. 1989 “An Examination of the Ignition Delay Period in Dual Fuel Engines” S.A.E. International Fuels & Lubricants Meeting Baltimore, Maryland S.A.E. Paper No. 892140 FL 97 103
- Wakenell, J.F. O'Neal, G.B. Baker, Q.A. 1987 “High Pressure Late Cycle Direct Injection of Natural Gas in A Rail Medium Speed Diesel Engine” S.A.E. Technical Paper No. 872041