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Spectroscopic Measurement of Radical Behavior Under Knocking Operation, 1996
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English
Abstract
Emission intensity was measured at a wavelength of 395 2 nm (corresponding to the characteristic spectrum of the HCHO radical) and absorbance was measured at 306 4 nm (corresponding to that of the OH radical). The emission intensity and absorbance waveforms recorded during engine operation on n-heptane show behavior indicative of the passage and degeneracy of cool flame in the preflame reaction interval. As the combustion chamber wall temperature approached an overheated state in the transition from normal combustion to knocking operation different preflame reaction behavior was observed which is thought to correspond to the presence of a negative temperature coefficient region related to the ignition delay time.
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Shoji, H., Shimizu, T., Nishizawa, T., Yoshida, K. et al., "Spectroscopic Measurement of Radical Behavior Under Knocking Operation, 1996," SAE Technical Paper 962104, 1996, https://doi.org/10.4271/962104.Also In
References
- Livengood, J C Taylor, C F Wu, P C “Correlation of Auto-ignition Phenomena in Internal Combustion Machines and Rapid Compression Machines” 5th Symposium (International) on Combustion 347 1954
- Walsh A D “The Knock Ratings of Fuels” 9th Symposium (International) on Combustion 1046 1963
- Kono, M Shiga, S Kumagai, S Iinuma K “Thermodynamic and Experimental Determinations of Knock Intensity by Using a Spark Ignited Rapid Compression Machine” Combustion and Flame 54 33 1983
- Smith, J R Green, R M Westbrook, C K Pitz, W.J “An Experimental and Modeling Study of Engine Knock” 20th Symposium (International) on Combustion 91 1984
- Hayashi, T Taki, M Kojima, S Kondo T “Photographic Observation of Knock with a Rapid Compression and Expansion Machine” SAE Paper 841336 1984
- Cernansky, N P Geen, R H Pitz, W.J Westbrook C K “Chemistry of Fuel Oxidation Preceding End-Gas Autoignition” Combust Sci and Tech. 50 3 1986
- Green, R M Cernansky N P Pitz, W.J Westbrook, C K “The Role of Low Temperature Chemistry in Autoignition of N-Butane” SAE Paper 872108 1987
- Leppard, W R “A Detailed Chemistry Kinetics Simulation of Engine Knock” Combust. Sci and Tech 43 1 1985
- Leppard W R “A Comparison of Olefin and Paraffin Autoignition Chemistries A Motored Engine Study” SAE Paper 892081 1989
- Leppard W R “The Chemical Origin of Fuel Octane Sensitivity” SAE Paper 902137 1990
- Leppard W R “The Autoignition Chemistries of Primary Reference Fuels Other Mixtures and Blending Octane Numbers” SAE Paper 922325 1992
- Takagi, Y Itoh T Iijima T “An Analytical Study on Knocking Heat Release and its Control in a Spark Ignition Engine” SAE Paper 880196 1988
- Nakada, T Itoh, T Takagi, Y “Unburnt Gas Temperature Measurements Using Single Shot CARS in a Spark Ignition Engine” COMODIA 90 393 1990
- Itoh, T Nakada, T Takagi, Y “Emission Characteristics of OH and C2 with Knocking” Trans JSME 59 562B 310 1993
- Nakada, T Itoh, T Takagi Y “Application of CARS to Development of High Compression Ratio Spark Ignition Engine” SAE Paper 932644 1993
- Kojima, S “Detailed Modeling of n-Butane Autoignition Chemistry” Combustion and Flame 99 87 1994
- Ohta Y Takahashi, H “Homogeneity and Propagation of Auto-ignited Cool and Blue Flames” Progress in Aeronautics and Astronautics, AIAA 95 236 1985
- Ohta, Y Hayashi, A K Fujiwara, T Takahashi, H “Consequence of Temperature-Pressure-Time History for Autoignition” Progress in Astronautics and Aeronautics 105 93 AIAA 1986
- Westbrook, C K Pitz, W.J “Modeling of Knock in Spark-Ignition Engines” COMODIA 90 11 1990
- Shoji, H Saima, A Shiino, K Ikeda, S “Clarification of Abnormal Combustion in a Spark Ignition Engine” SAE Paper 922369 1992
- Shoji, H Saima, A Shiino, K “Simultaneous Measurement of Light Emission and Absorption Behavior of Unburned Gas During Operation” SAE Paper 932754 1993
- Shoji, H Tosaka, Y Yoshida, K Saima, A “Radical Behavior in Preflame Reactions Under Knocking Operation in a Spark Ignition Engine” SAE Paper 942061 1994
- Gaydon A G “The Spectroscopy of Flames Chapman & Hall Ltd London 1957
- Pearse, R W B Gaydon A G The Identification of Molecular Spectra 3rd Chapman & Hall Ltd London 1963
- Ohta, Y Furutani, M Kadowaki, S Terada, K “Effect of Mixture Dilution or EGR on Low-Temperature Autoignition under Piston Compression” COMODIA 90 111 1990
- Wilk, R D Cernansky, N.P Cohen, R S “The Oxidation of Propane at Low and Transition Temperature’ Combust. Sci and Tech 49 41 1986
- Leppard W R “The Autoignition Chemistry of Isobutane A Motored Engine Study” SAE Paper 881606 1988