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Experimental and Theoretical Analysis of Wankel Engine Performance
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1978 by SAE International in United States
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A model for predicting the performance and emissions characteristics of Wankel engines has been developed and tested. Each chamber is treated as an open thermodynamic system and the effects of turbulent flame propagation, quench layer formation, gas motion, heat transfer and seal leakage are included. The experimental tests were carried out on a Toyo Kogyo 12B engine under both motoring and firing conditions and values for the effective seal leakage area and turbulent heat transfer coefficient were deduced. The agreement between the predicted and measured performances was reasonable. Parametric studies of the effects of reductions in seal leakage and heat transfer were carried out and the results are presented.
- Guido A. Danieli - Dipartimento di Meccanice, Universita degli Studi della Calabria Arcavacata di Rende (Cosenza)
- James C. Keck - Mechanical Engrg. Dept., Massachusetts Institute of Technology Cambridge, MA
- John B. Heywood - Mechanical Engrg. Dept., Massachusetts Institute of Technology Cambridge, MA
CitationDanieli, G., Keck, J., and Heywood, J., "Experimental and Theoretical Analysis of Wankel Engine Performance," SAE Technical Paper 780416, 1978, https://doi.org/10.4271/780416.
- Bracco F.V. and Sirignano W.A., “Theoretical Analysis of Wankel Engine Combustion,” Combustion Science and Technology, Vol. 7, (1973) pp. 109-123.
- Eberle M.K. and Klomp E.D., “An Evaluation of the Potential Performance Gain from Leakage Reduction in Rotary Engines,” SAE Trans., Vol. 82, paper 730117 (1973).
- Danieli G.A., Ferguson C.R., Heywood J.B. and Keck J.C., “Predicting the Emissions and Performance Characteristic of a Wankel Engine,” SAE Trans., Vol. 83, paper 7400186 (1974)
- Blizard N.C. and Keck J.C., “Experimental and Theoretical Investigation of Turbulent Burning Model for Internal Combustion Engines,” SAE Trans., Vol. 83, paper 740191 (1974).
- Eichelberg E., “Some New Investigation on Old Combustion Engine Problems,” Engineering, Vol. 148 (1939)
- Woschni G., “A Universally Applicable Equation for Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine,” SAE Trans., Vol. 76, paper 670931 (1967)
- Rohsenow W.M. and Choi H.Y., “Heat, Mass and Momentum Transfer,” Prentice Hall,Englewood Cliffs, 1961.
- Ferguson C.R. and Keck J.C., “On Laminar Flame Quenching and its Applications in Engine Combustion,” Comb. & Flame,28,197 (1977)
- Ansdale R.F., “The Wankel RC Engine,” Iliffe, London, 1968.
- Danieli G.A., “A Performance Model of a Wankel Engine, Including the Effects of Burning Rates, Heat Transfer, Leakage and Quenching Compared with Measured Pressure Time Histories,” Ph, D. Thesis, Dept. of Mech. Eng., M.I.T. January 1976.
- Martin M.K. and Heywood J.B., “Approximate Relationships for the Thermodynamic Properties of Hydrocarbon-Air Combustion Products,” Combustion Science and Technology, Vol. 15, pp. 1-10, 1977
- Hires S.D., Ekchian A., Heywood J.B., Tabaczynsky R.J., Wall J.C., “Performance and NOx Emissions Modelling of a Jet Ignition Prechamber Stratified Charge Engine,” SAE paper 760161, 1976
- Krogh F.T., “A Variable Step Variable Order Multilisted Method for the Numerical Solution of Ordinary Differential Equations,” Information Processing 1968: Proceedings of IFIP Congress 1968 (Morrei A.J.H., Editor), Vol. 1, pp. 194-199, North Holland Publishing Company, Amsterdam, 1969
- Danieli G.A., Keck J.C. and Heywood J.B., “Experimental and Theoretical Investigation on Motoring Performances of a Wankel Engine,” Atti del Dipartimento, Dip, di Meccanica, Universita della Calabria, no 5, gennaio 1977.
- Danieli G.A., Keck J.C. and Heywood J.b., “Experimental and Theoretical Investigation on Firing Performances of a Wankel Engine,” Atti del Dipartimento di Meccanica dell' Universita della Calabria, no 7, febbraio 1977.
- Windsor R.E. and Patterson D.J., “Mixture Turbulence - A Key to Cyclic Combustion Variation,” SAE Trans., Vol. 82, paper 730086, (1973)
- Yamamoto K., “Rotary Engine,” Toyo Kogyo Co., Ltd., Hiroshima, 1969.
- Friedman R. and Johnston W.C., “The Wall-Quenching of Laminar Propane Flames as a Function of Pressure, Temperature, and Air-Fuel Ratio,” Jol. Applied Physics, Vol. 21 (1950).
- Shapiro A.H., “The Dynamics and Thermodynamics of Compressible Fluid Flow,” The Ronald Press Co., New York, 1953.
- Lancaster D.R., Kreger R.B., and Lenesch J.H., “Measurement and Analysis of Engine Pressure Data,” SAE Trans., Vol, 84, paper 750026, (1975)
- Spindt R.S., “Air-Fuel Ratios from Exhaust Gas Analysis,” SAE Trans., Vol 74, paper 650507, (1965)
- Yamamoto K. and Kuroda T., “Toyo Kogyo's Research and Development on Major Rotary Engine Problems,” SAE Trans., Vol. 79, paper 700079, (1970)
- Ferguson C.R., Danieli G.A., Heywood J.B. and Keck J.C., “Time Resolved Measurements of Exhaust Composition and Flow Rate in a Wankel Engine,” SAE Trans, Vol. 84, paper 750024, (1975).
- Danieli G.A., Ferguson C.R., Heywood J.B., and Keck J.C., “Analysis of Performance Losses in a Wankel Engine,” Conference on Combustion in Engines, Institute of Mechanical Engineers, July 1975, Cranfield Institute of Technology