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Evaluation and Optimization of Measurements of Flame Kernel Growth and Motion Using a Fiber-Optic Spark Plug Probe
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 04, 1998 by SAE International in United States
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Spark plugs instrumented with a ring of optical fibers in the threaded-body region have seen considerable use in the past ten years, and it is expected that their application to unmodified production engines will increase in the years to come. Interpretation of the optical signals obtained with the probe is often difficult, particularly under lean operating conditions where the low luminosity of the flame leads to imprecise flame arrival detection. A systematic look at the optical signals, along with direct imaging of the flame, has been undertaken to calibrate and optimize the determination of flame arrival times. In addition, an evaluation of the different models available for the analysis of the flame arrival data is made. Data fits are compared with real flame images, to determine which model best estimates the convective velocity of the flow and the expansion speed of the flame kernel.
CitationAult, J. and Witze, P., "Evaluation and Optimization of Measurements of Flame Kernel Growth and Motion Using a Fiber-Optic Spark Plug Probe," SAE Technical Paper 981427, 1998, https://doi.org/10.4271/981427.
- Keck, J. C., Heywood, J. B. and Noske, G., “Early Flame Development and Burning Rates in Spark Ignition Engines and Their Cyclic Variability,” SAE Paper No. 870164, 1987.
- Witze, P. O., Hall, M. J. and Wallace, J. S., “Fiber-Optic Instrumented Spark Plug for Measuring Early Flame Development in Spark Ignition Engines”, Trans. SAE 97, Sec. 3, p. 813, 1988.
- Kerstein, A. R. and Witze, P. O., “Flame-Kernel Model for Analysis of Fiber-Optic Instrumented Spark Plug Data,” SAE Paper No. 900022, 1990.
- Bianco, Y., Cheng, W. K. and Heywood, J. B., “The Effects of Initial Flame Kernel Conditions on Flame Development in SI Engine,” Trans. SAE 100, Sec. 3, p. 1852, 1991.
- Lord, D. L., Anderson, R. W., Brehob, D. D. and Kim, Y., “The Effects of Charge Motion on Early Flame Kernel Development,” Trans. SAE 102, Sec. 4, 1993.
- Salvat, O. P., Cheng, A. S., Cheng, W. K. and Heywood, J. B., “Flame Shape Determination Using an Optical-Fiber Spark Plug and a Head-Gasket Ionization Probe,” Trans. SAE 103, Sec. 4, 1994
- Hall, M. J., “The Influence of Fluid Motion on Flame Kernel Development and Cyclic Variation in a Spark Ignition Engine,” Trans. SAE 98, Sec. 4, 1989.
- Witze, P. O., Hall, M. J. and Bennett, M. J., “Cycle-Resolved Measurements of Flame Kernel Growth and Motion Correlated with Combustion Duration,” Trans. SAE 99, Sec. 3, p. 74, 1990.
- Hahn, J. P. and Anderson, R. W., “Correlation of Fiber-Optic Spark Plug and Combustion Pressure Data on Two and Four Valve Per Cylinder Production Engines,” Central States Section, The Combustion Institute, Spring 1991
- Hinze, P. and Cheng, W. K. (1993) ‘Flame Kernel Development in a Methanol Fueled Engine’, Trans. SAE 102, Sec. 4, 1993.
- Meyer, R., Kubesh, J. T. and Shahed, S. M., “Simultaneous Application of Optical Spark Plug Probe and Head Gasket Ionization Probe to a Production Engine,” SAE Paper No. 930464, 1993.
- Lee, K-H. and Foster, D. E., “Cycle-by-Cycle Variations in Combustion and Mixture Concentration in the Vicinity of Spark Plug Gap,” Trans. SAE 104, Sec. 3, 1995.
- Geiser, F., Wytrykus, F. and Spicher, U., “Combustion Control with the Optical Fibre Fitted Production Spark Plug,” SAE Paper No. 980139, 1998.
- Barr, P. K. and Witze, P. O., “Some Limitations to the Spherical Flame Assumption Used in Phenomenological Engine Models,” SAE Paper No. 880129, 1988.
- Weeks, A. R. Jr.,, Fundamentals of Electronic Image Processing, SPIE Optical Engineering Press, Bellingham, Washington, 1996.