This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Hydrocarbon Modeling for Two-Stroke SI Engine
Annotation ability available
Sector:
Language:
English
Abstract
Hydrocarbon emissions due to short-circuiting of the fresh charge during scavenging process is a major source of pollution from the two-stroke spark ignition engines. This work presents a prediction scheme for analysis of hydrocarbon emission based on the material balance considerations. A generalized form of globular combustion equation has been used for general applicability of the scheme to any fuel or fuel blends. The influence of mixture quality, scavenging characteristics, residual contents and the delivery ratio are predicted. A good qualitative prediction has been established at all delivery ratios. The predictions are found quantitatively satisfactory in the higher delivery ratio range where the short-circuiting phase of the scavenging process is dominant.
Authors
Topic
Citation
Babu, P., Nagalingam, B., and Mehta, P., "Hydrocarbon Modeling for Two-Stroke SI Engine," SAE Technical Paper 940403, 1994, https://doi.org/10.4271/940403.Also In
Two-Stroke Engines: Theoretical and Experimental Investigations
Number: SP-1019; Published: 1994-03-01
Number: SP-1019; Published: 1994-03-01
References
- Schweitzer, P.H. Scavenging of two-stroke cycle diesel engines The Macmillan Company New York 1949
- Jante, A. Scavenging and other problems of two-stroke cycle spark ignition engines SAE Paper 680468 1803 1824 1968
- Shunichi, O. Yoshisuke, H. Cylinder gas composition of small two-stroke cycle gasoline engine SAE Paper 710143 491 506 1971
- Sanborn, D.S. Blair, G.P. Kenny, R.G. Kingsbury, A.H. Experimental assessment of scavenging efficiency of two-stroke cycle engines SAE Paper 800975 3070 3087 1980
- Sher, E. Modeling the scavenging process in the two-stroke engine - an overview SAE Paper 890414 648 668 1989
- Nuti, M Martorano, L. Short-circuit ratio evaluation in the scavenging of two-stroke SI engines SAE Paper 850177 35 45 1985
- Baudequin, F. Rochelle, P. Some scavenging models for two-stroke engines Proc. Instn. Mech. Engrs. 194 203 210 1980
- Dang, D. Wallace, F.J. Some single zone scavenging models for two-stroke engines Int. J. of Mechanical Sciences 34 8 595 604 1992
- Kollman, R.E. Lestz, S.S Meyer, W.E. Exhaust emission characteristics of a small two-stroke cycle spark-ignition engine SAE Paper 730159 649 656 1973
- Malik, K.A. Modeling of Two-stroke Cycle SI Engine University of Roorkee 1988
- Malik, K.A. Mehta, P.S. Gupta, C.P. Phenomenological scavenge-combustion model for two-stroke cycle SI engine SAE 881268 1988
- Sher, E. A new practical model for the scavenging process in a two-stroke cycle engine SAE 850085 1985
- Douglas, R. AFR and emissions calculations for two-stroke cycle engines SAE Paper 901599 1990