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Experimental and Theoretical Investigation of Turbulent Burning Model for Internal Combustion Engines
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Abstract
A model for describing turbulent flame propagation in internal combustion engines is presented. The model is based upon the assumption that eddies having a characteristic radius ℓe are entrained by the flame front at a turbulent entrainment velocity ue and subsequently burn in a characteristic time τ = ℓe/uℓ, where uℓ is the laminar flame speed for the fuel-air mixture. An approximate analytic method for determining the equilibrium state of the burned gases is also presented. To verify the predictions of the model, experiments were carried out in a single-cylinder research engine at speeds from 1000-3200 rpm, spark advances from 30-110 deg btc and fuel-air equivalence ratios from 0.7-1.5. Simultaneous measurements of the cylinder pressure and the position of the flame front as a function of crank angle were made, and good agreement with the predictions of the model was obtained for all operating conditions. Correlations were developed that permit both the entrainment speed ue and the eddy radius ℓe to be calculated from a knowledge of the engine geometry, fuel type, and operating conditions. It is anticipated that the model will be useful for design studies directed toward improving the efficiency and pollution characteristics of internal combustion engines.
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Blizard, N. and Keck, J., "Experimental and Theoretical Investigation of Turbulent Burning Model for Internal Combustion Engines," SAE Technical Paper 740191, 1974, https://doi.org/10.4271/740191.Also In
References
- Heywood J. B. et al. “Prediction of Nitric Oxide Concentrations in a Spark Ignition Engine Compared with Exhaust Measurements.” Paper 710011 Automotive Engineering Congress Detroit January 1971
- Spadiccini L. J. Chinitz W. “An Investigation of Nonequilibrium Effects in an Internal Combustion Engine.” ASME paper 71-WA/Fu2 Nov. 28 1971
- Sokolik A. S. “Turbulent Combustion in an Engine Cylinder.” Self-Ignition Flame and Detonation in Gases 1963 284
- Daniell Proc. Roy. Soc. London 1930 393
- Lavoie G. A. “Spectroscopic Measurements of Nitric Oxide in an S. I. Engine.” Comb. and Flame 15 1970 97
- Lavoie G. A. Heywood J. B. Keck J. C. “Experimental and Theoretical Study of Nitric Oxide Formation in Internal Combustion Engines.” Comb. Sci.and Tech. 1 1970 313
- Lewis Von Elbe “Combustion, Flames, and Explosions of Gases.” Cambridge University Press 1938 211
- Sirignano W. A. “One-Dim. Anal. of Comb. in S. I. Engine.” Guggenheim Laboratories Princeton, N. J. 1972
- Rasegan A. H. “The Effect of Turbulence on Combustion in a Spark-Ignited I. C. Engine.” M.I.T. August 1965
- Clark Bone W. A. Townend “Flame and Combustion in Gases.” 1927 244
- Semenov Clark “A Study of Turbulent Gas Motion in the Cylinder of a Piston Engine.” 1959 141 167
- Bouchard C. L. et al. “Altitude and Other Variables Affecting Flame Speed in the Otto Cycle Engine.” SAE Transactions 32 1937
- Rogowski A. R. “Elements of Internal Combustion Engines.” 1965
- Hottel H. C. et al. “Thermodynamic Charts;” New York John Wiley Co. 1949
- JANAF Thermochemical Tables Dow Chemical Co.
- Taylor C. F. Taylor E. S. “The Internal Combustion Engine.” Scranton, Pa. International Textbook Co. 1966
- Taylor C. F. “The I. C. Engine in Theory and Practice.” Cambridge M.I.T. Press 1971 II 612 I 114 118
- Curry S. “Effect of Antiknocks on Flame Propagation in a Spark Ignition Engine.” 9th Symp. Comb. 1962 1056
- Curry S. “Three Dimensional Study of Flame Propagation in a Spark Ignition Engine.” SAE Transactions 71 1963 paper 452-B
- Hirschler D. A. et al. “Deposit Induced Ignition, Evaluation in a Laboratory Engine.” SAE Transactions 62 1954
- Kumagai S. Kudo Y. “Flame Studies by Means of Ionization Gaps in a High Speed Spark Ignition Engine.” 9th Symp. Comb. 1069 1958 1069
- Robinson J. A. et al. “Investigating Rumble in Single Cylinder Engines.” SAE Transactions 66 1959 paper 61-H
- Schnauffer K. “Engine-Cylinder Flame Propagation Studied by New Methods.” SAE Transactions 29 1934
- Warren J. A. Hinkamp J. B. “New Instrumentation for Engine Combustion Studies.” SAE Transactions 64 1956
- Calcote H. F. “Ion Production and Recombination in Flames.” 8th Symposium (Int'l.) on Combustion 1960 184
- Calcote H. F. “Ion and Electron Profiles in Flames.” Combustion and Flame 1 1957 385
- Calcote H. F. King J. “Ionization in Flames with Langmuir Probes.” 8th Symp. Comb. 1960 434
- Brown Sanborn C. “Basic Data of Plasma Physics.” New York M.I.T. Press and John Wiley and Sons 1959
- Strehlow R. A. “Fundamentals of Combustion.” 1963 205
- Williams F. A. “Combustion Theory.” 1964
- NASA Report 1300 “Basic Considerations in the Combustion of Hydrocarbon Fuels with Air.” Propulsion Chemistry Division, Lewis Flight Center 1957