This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
UV Absorbance Histories and Knock in a Spark Ignited Engine
Annotation ability available
Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
Monochromatic ultraviolet (UV) absorbance, temperature, and pressure histories of unburned gas in a single cylinder CFR engine under motored, fired, and autoignition conditions were recorded on a multichannel magnetic tape recorder. Isooctane, cyclohexane, ethane, n-hexane, n-heptane, 75 octane number (ON), 50 ON, and 25 ON blends of primary reference fuels (PRF) were studied. Under knocking or autoignition conditions a critical absorbance at 2600 A was found, whose magnitude was independent of engine operating variables and dependent only on the knock resistance of the fuel. This absorbance increased rapidly when a certain temperature level was exceeded during the exothermic preflame reactions.
Authors
Topic
Citation
Quader, A., Myers, P., and Uyehara, O., "UV Absorbance Histories and Knock in a Spark Ignited Engine," SAE Technical Paper 690519, 1969, https://doi.org/10.4271/690519.Also In
References
- Burrows, M. C. Shimizu, S. Myers, P. S. Uyehara, O. A. “The Measurement of Unburned Gas Temperatures in an Engine by an Infrared Radiation Pyrometer,” SAE Trans. 69 1961 541 548
- Livengood, J. C. Taylor, C. F. Wu, P. C. “Measurement of Gas Temperature in an Engine by the Velocity of Sound Method,” SAE Trans. 66 1958 683 699
- Johnson, J. H. Myers, P. S. Uyehara, O. A. “End Gas Temperature, Pressure, Reaction Rate, and Knock.” Paper 650505 presented at SAE Midyear Meeting, Chicago May 1965
- Quader, A. A. “Monochromatic UV Absorbance Histories of Unburned Gases in a Spark Ignition Engine.” Ph.D. Thesis University of Wisconsin 1969
- Downs, D. Walsh, A. D. Wheeler, R. W. “A Study of Reaction that Lead to ‘Knock’ in the Spark Ignition Engine,” Proc. Roy. Sec. 243A July 1951 463
- Levedahl, W. J. “Multistage Autoignition of Engine Fuels,” Fifth Symp. Intl. on Combustion New York Reinhold Publishing Corp. 1955 372
- Withrow L. Rassweiler, G. M. “Absorption Spectra of Gaseous Charge in a Gasoline Engine,” Ind. and Engr. Chem. 25 1933 923
- MacPherson, J. A. A. Bert, J. A. Kipp, K. L. “Relationship Between Time End Gas Pressure Temperature and Knock,” SAE Preprint Jan. 13 1958
- Karim, G. A. “The Application of Elementary Chemical Kinetics to Engine Performance Calculations,” 4 “Combustion,” Hodgetts, New York Pergamon Press November 1966
- Egerton A. Pidgeon, L. M. “Absorption Spectra of Burning Hydrocarbons,” Proc. Roy. Soc. 142A 1933 26
- Barusch, M. R. Crandall, H. W. Payne, J. Q. Thomas J. R. “Identification of Betadicarbonyl Compounds,” Ind. and Eng. Chem. 43 1951 2764
- Burt, R. Skuse, F. Thomas, A. “Kinetic Spectroscopy of Intermediates in Reactions Leading to Ignition of Hydrocarbons,” Combustion & Flame 9 1965 159
- LeFeuvre, T. “Instantaneous Metal Temperatures and Heat Transfer in a Diesel Engine.” Ph.D. Thesis University of Wisconsin 1968
- Trumpy, D. “Preknock Kinetics of Ethane in a Spark Ignited Engine,” Ph.D. Thesis University of Wisconsin 1969
- McCarthy R. L. MacLachlan, A. “Observation of Free Radical Kinetics in the Cyclohexane-Oxygen System,” J. Chem. Physics 35 No. 5 1961 1625 1627
- Trumpy, D. K. Sorenson, S. C. Myers, P. S. Barnes G. T. “Relation of Lean Combustion Limits in Diesel Engines to Exhaust Odor Intensity.” Paper 680445 presented at SAE Midyear Meeting, Detroit June 1968
- Walsh, A. D. “Knock in Spark Ignition Engines,” Jost, W. Gordon and Breach Science Publishers 1965
- Lewis, B. Pease, R. N. Taylor, H. S. “Combustion Processes.” Princeton, N. J. Princeton University Press 1956
- Sokolik, A. S. “Self Ignition Flame and Detonation in Gases,” Israel Program of Scientific Translations Jerusalem 1963
- Curry, S. “The Relationship Between Flame Propagation and Pressure Development During Knocking Combustion.” Paper 647B presented at SAE Automobile Engineering Congress, Detroit January 1963