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Prospects of Ignition Enhancement
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English
Abstract
A simple thermal model for flame propagation is adapted to engine conditions and used to trace back engine parameters via computer simulations to basic physical properties. The competitive constraints imposed by piston motion on ignition and flame propagation are revealed and the principal possibilities investigated to relieve these constraints. General criteria for enhanced ignition and flame propagation are given. The theoretical results are compared to extensive measured engine data showing an excellent agreement between model predictions and easily measureable engine dependencies. By relating basic data to implicitly given engine properties the optimization of engine performance is substantially facilitated.
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Authors
- R. Maly - Institut fuer Physikalische Elektronik, University of Stuttgart
- B. Saggau - Institut fuer Physikalische Elektronik, University of Stuttgart
- E. Wagner - Institut fuer Physikalische Elektronik, University of Stuttgart
- G. Ziegler - Institut fuer Physikalische Elektronik, University of Stuttgart
Citation
Maly, R., Saggau, B., Wagner, E., and Ziegler, G., "Prospects of Ignition Enhancement," SAE Technical Paper 830478, 1983, https://doi.org/10.4271/830478.Also In
References
- Müller, H. Almstadt, K. “Die Entflammungsphase im Ottomotor - Dauer und Streuung in Abhängigkeit vom Betriebspunkt” MTZ, 43 149 1982
- Albrecht, H., Bloss, W.H. Herden, W. Maly, R. Saggau, B. Wagner, E. “New Aspects on Spark Ignition” SAE-paper, 770853 1977
- Albrecht, H. Maly, R. Saggau, B. Wagner, E. “Neue Erkenntnisse Uber elektrische Zilndfunken und ihre Eignung zur Entflammung brennbarer Gemische” (1. Teil), Automobil Industrie, 4/77 45 1977
- Herden, W. Maly, R. Saggau, B. Wagner, E. “Neue Erkenntnisse Uber elektrische Zilndfunken und ihre Eignung zur Entflammung brennbarer Gemische” (2. Teil), Automobil Industrie, 2/78 15 1978
- Maly, R. Saggau, B. Spaude, H.W. Vogel, E. Greiner, R. Horch, E.J. “DieAuswirkungen einer verbesserten elektrischen Entflammung auf die Verbrennung im Ottomotor” Automobil Industrie, 3/78 37 1978
- Maly, R. Vogel, H. “Initiation and Propagation of Flame Fronts in Lean CH4-Airixtures by the Three Hodes of the Ignition Spark” 17th Symposium (International) on Combustion,p.821, The Combustion Institute 1979
- Maly, R. Saggau, B. Vogel, M. Ziegler, G. “Optimierte Zundung und Entflammung” AbschluBbericht, Institut fur Physikalische Elektronik University of Stuttgart March 1980
- Ziegler, G. Maly, R. “Influence of Ignition on Inflammation and Flame Propagation” First Specialists Meeting (International) of the Combustion Institute 89 1981
- Bloss, W.H. Maly, R. Saggau, B. Vogel, N. “Experimentelle und theoretische Analyse der Verdichtungserh6hung bei Ottomotoren mit dem Audi-Brennverfahren”, 2. Teil “Strömungsund Zundungseinflusse” Automobil Industrie, 2/82 1982
- Maly, R. Bloss, W.H. Meinel, H. Saggau, B. Wagner, E. Ziegler, G. “Möglichkeiten zur Beeinflussung des Brennprozesses alternativer Kraftstoffe” BMFT/DGMK-Gemeinschaftstagung Nov 11-12
- Maly, R. “Spark Ignition, its Physics and Effect on the Internal Combustion Process” Hilliard, J.C. Springer, G.S. “Fuel Economy: Road Vehicles powered by Spark Ignition Engines”, Plenum Press, in print”
- Maly, R. “Ignition Hodel for Spark Discharges and the Early Phase of Flame FrontGrowth” 18th Symposium (International) on Combustion 1747 1981
- Maly, R. Ziegler, G. “Theoretical and Experimental Investigation of the Knocking Process”, International Symposium on “Knocking of combustion Engines” Nov 26 27 1981 VW Research Division, Wolfsburg
- Dale, J.D. Oppenheim, A.K. “Enhanced Ignition for I.C. Engines with Premixed Gases” SAE-paper 810146 1981
- de Soete, G.G. “Measurement of Initial Flame Speed by Laser Tomography” First Specialists Meeting (International) of the Combustion Institute 49 1981
- Saggau, B. “Kalorimetrie der drei Entladungsformen des elektrischen Zundfunkens” Archiv fur Elektrotechnik 64 p.229 1981
- Maly, R. Ziegler, G. “Thermal Combustion Modeling, Theoretical and Experimental Investigation of the Knocking Process” SAE-paper 820759 1982
- Maly, R. Wagner, E. Ziegler, G. “Modeling of Flame Propagation and Energy Conversion Rates in S.I. Engines” this congress
- Maly, R. Meinel, H. “Determination of Flow Velocity, Turbulence Intensity and Length and Time Scales from Gas Discharge Parameters” Proceedings of the 5th International Symposium on Plasma Chemistry Edinburgh 552 1981
- Witze, P.O. “Measurements of the Spatial Distribution and Engine Speed Dependence of Turbulent Flow Motion in an I.e. Engine” SAE-paper 770220 1977
- Hirschfelder, J.O. Curtiss, C.P. Bird, R.J. “Molecular Theory of Gases and Liquidsl1, Wiley and Sons, Inc” 1964
- Westbrook, C.K. Dreyer, P.L. “Predictions of Laminar Flame Properties of Methanol Air Mixtures” Comb. and Flame 37 171 1980
- Hackel, K. “EinfluB der zeitlichen Energieumsetzung auf den Wirkungsgrad beim Ottomotor” Automobil Industrie 3/81 315 1981