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Flame Propagation Variation due to Insufficient HC Concentration
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 19, 1998 by SAE International in United States
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The purpose of this study was to examine the cause of fluctuations in combustion. It is important to understand the changes that occur in flame kernel development and in flame propagation during cyclic variation.
In this study, a comparison was made between time-series variations in OH emission with THC concentration, and the intensity of the combustion reaction and the direction of flame propagation are also discussed. Early flame development and cyclic variation at an early stage of combustion were demonstrated by simultaneously measuring a two-dimensional image of flame emission and the time-series variation of local flame emission. The instantaneous intensity at Cassegrain measurement point agreed with the intensity of time-series variation in local flame propagation at CCD recorded timing. Variations in THC concentration in the cylinder were compared with time-series variations in local flame emission. It was confirmed that the THC decrease and the start of the OH radical emission occurred at almost the same time.
CitationNakai, H., Ichi, S., Ikeda, Y., and Nakajima, T., "Flame Propagation Variation due to Insufficient HC Concentration," SAE Technical Paper 982565, 1998, https://doi.org/10.4271/982565.
- Blair G.P., “Basic Design of Two-Stroke Engines”, SAE Publication R-104, (1990)
- Ozdor N., Dulger M., and Sher E., “Cyclic Variability in Spark Ignition Engines: A Literature Survey”, SAE Paper 940987, (1994)
- Kakemizu K. et al.,“Cyclic Variation of a Practical Two-Stroke Engine with Time-series Data (Correlation of Velocity, Pressure and HC Emission Variation)”, Proceeding of 14th Internal Combustion Symposium (in Japanese), pp145-150, (1997)
- Ohira T., Ikeda Y., Takahashi T. and Nakajima T., “Exhaust Gas Flow Behavior in a Two-Stroke Engine,” SAE Transaction, Vol.102, Section 3, SAE Paper 930502, (1993).
- Martin J. K., “Burn Modes and Prior-Cycle Effects on Cyclic Variation in Lean-Burn Spark Ignition Engine Combustion”, SAE Paper 880201, (1988)
- Hamamoto et al., “Cycle-to-Cycle Fluctuation in Combustion of Diluted Mixture in Spark Ignition Engine”, JSME No.95-0222 (in Japanese), (1995)
- Hall M. J., “The Influence of Fluid Motion on Flame Kernel Development and Cyclic Variation in a Spark Ignition Engine”, SAE Paper 890991, (1989)
- Fujikawa et al., “Visualization Study of Mixture Phenomena under Light-Load Conditions in a 2-Stroke Engine”, JSME No.95-0194 (in Japanese), (1995)
- Hadjiconstantinou N., Min K. and Heywood J. B., “Relation between Flame Propagation Characteristics and Hydrocarbon Emissions under Lean Operating Conditions in Spark-Ignition Engines”, 26th Symposium (International) on Combustion, pp.2637-2644, (1996)
- Kakemizu K. et al., “Cyclic Variation of HC Emission in a Light Loaded Small Two-Stroke Engine”, Proceeding of 12th Internal Combustion Symposium (in Japanese), pp331-336, 1995
- Nakai H., Ikeda Y., Kakemizu K. and Nakajima T., “Cyclic Variation in HC Concentration near the Spark Plug in a Two-Stroke Engine”, Proceeding of SETC, pp261-267, (1997)
- Ikeda Y., Ichi S., Nakai H. and Nakajima T., “Local Chemiluminescence Measurement for Flame Propagation Analysis”, Proceeding of COMODIA 98, pp411-416, (1998)
- Wakabayashi S. et al., “Development of a Multi-Color Light Collection Probe with High Spatial resolution”, JSME Transactions, Vol.64, No.619B (in Japanese), (1997)
- Ikeda Y., Kakemizu K., Nakai H. and Nakajima T.,“Time-series Analysis of Velocity and Pressure in a Small Two-Stroke Engine”, ISATA No.97EL079, (1997)
- Peckham M. and CollingsN., “In-Cylinder HC Measurements with a Piston-Mounted FID”, SAE Paper 932643, (1993)
- Heywood J. B., “Internal Combustion Engine Fundamentals”, McGraw-Hill Book Co., (1988)
- Ohira T., Ikeda Y., Ito T. and Nakajima T., “Cyclic Variation of CO and CO2 Emission and Scavenging Flow in a Two-Stroke Engine”, SAE Transaction Vol.103, Paper No.940392, 1994
- Ikeda Y., Ohira T., Takahashi T. and Nakajima T., “Misfiring Effects on Scavenging Flow at Scavenging Port and Exhaust Pipe in a Small Two-Stroke Engine”, SAE Transaction, Vol.102, Section 3, SAE Paper 930498, (1993)
- Salvat O. P., “Flame Shape Determination Using an Optical Fiber Spark Plug and Head-Gasket Ionization Probe”, SAE Paper 941987, (1994)