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Spectroscopic Measurements in Small Two-Stroke SI Engines
Technical Paper
2009-32-0030
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English
Abstract
This paper demonstrates the potential of optical sensors in the combustion chamber of a small two-stroke SI engine to detect conditions that hinder an optimal combustion process using emission bands and/or emission lines. The primary focus is on the spectroscopic examination of the combustion radiation emissions cycle-by-cycle. For this purpose, spark-ignition type combustion events, as well as the influence of both the air-fuel-ratio and the fuel type, are investigated on a crank angle resolved basis.
Furthermore, an assessment of the radiation emissions of the OH, CH and C2 radicals is made. As a next step, the calculation of a temperature profile inside the combustion chamber is attempted by means of the line-emission-method regarding the thermally excited alkaline metals sodium and potassium. These data enable recognition of diffusion combustion and the detection of inadequate mixture quality.
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Authors
- Kai W. Beck - Universität Karlsruhe (TH), Germany
- Thomas Heidenreich - Universität Karlsruhe (TH), Germany
- Steve Busch - Universität Karlsruhe (TH), Germany
- Ulrich Spicher - Universität Karlsruhe (TH), Germany
- Tim Gegg - Andreas STIHL AG & Co. KG, Waiblingen, Germany
- Armin Kölmel - Andreas STIHL AG & Co. KG, Waiblingen, Germany
Topic
Citation
Beck, K., Heidenreich, T., Busch, S., Spicher, U. et al., "Spectroscopic Measurements in Small Two-Stroke SI Engines," SAE Technical Paper 2009-32-0030, 2009.Also In
References
- Spicher, U. Kollmeier, H. P. “Detection of Flame Propagation during Knocking Combustion by Optical Fiber Diagnostics” SAE 861532 1986
- Spicher, U. “Optical Fiber Technique as a Tool to Improve Combustion Efficiency” SAE 902138 1990
- Beck, K. W. Spicher, U. et al. “Application of Miltifiber Optics in Handheld Power Tools with High Speed Two-Stroke Gasoline Engines” SETC, SAE 2006-32-0060 2006
- Herzberg, G. “Atomic Spectra and Atomic Structure” Dover Publications New York 1944
- Herzberg, G. “Molecular Spectra and Molecular Structure” I. Spectra of Diatomic Molecules, 2 1950 1989 Krieger Publishing Company Malabar, Florida
- Kovács, I. “Rotational Structure in the Spectra of Diatomic Molecules” Adam Hilger LTD London 1969
- Heering, W. Popp, H.-P. “Spektroskopische Temperaturmeßverfahren” VDI-Bildungswerk 1989
- Hertz, G. Rompe, R. “Einführung in die Plasmaphysik und ihre technische Anwendung” Akademie-Verlag Berlin 1965
- Helbig, V. Richter, J. “Spectroscopic Diagnostic of the Arc Plasma”
- Bach, M. Reissing, J. Spicher, U. “Temperature Measurement and NO Determination in SI Engines Using Optical Fiber Sensors” SAE 961922 1996
- Spicher, U. “Verbrennungsmotoren A+B” Vorlesungsumdruck
- Frank, B. “Technische Temperaturmessung” Springer-Verlag Berlin, Heidelberg 2004
- Gaydon, A. G. Wolfhard, H.G. “Flames - Their Structure, Radiation and Temperature” 4 Auflage, Chapman and Hall London 1979
- Reissing, J. “Spektroskopische Untersuchungen an einem Benzin-Ottomotor mit Benzin-Direkteinspritzung” Logos Verlag Berlin 2000
- Warnatz, J. Mass, U. Dibble, R.W. “Combustion : physical and chemical fundamentals, modeling and simulation, experiments, pollutant formation” 4 Springer Berlin, Heidelberg 2006
- Möser, P. “Zeitlich hochaufgelöste emissions-spektroskopische Untersuchung des Verbrennungsvorgangs im Ottomotor” RWTH Aachen 1994
- Kosaka, H. Nishigaki, T. Kamimoto, T. Sano, T. Matsutani, A. Harada, S. “Simultaneous 2-D Imaging of OH Radicals and Soot in a Diesel Flame by Laser Sheet Techniques” SAE 960834 1996
- May, H. “Emissions- und Absorptionspektroskopie bei Verbrennungsmotoren” FVV-Bericht 1983
- Bach, M. “Spektroskopische Temperaturmessung und NO-Bestimmung im Ottomotor” VDI Verlag 1997
- Uchiyama H. et al. “A Practical Fiber Optic Air-Ratio Sensor Operating by Flame Color Detection” Review of Scientific Instruments 1997 68 197 202
- Sohma K. et al. “Application of Rapid Opticall Measurements to Detect the Fluctuations of Air-Fuel-Ratio and Temperature of a Spark Ignition Engine” SAE 910499 1991
- Longdill S. et al. “Optical Combustion Measurements of a High Performance Two-Stroke Engine” SAE 2001-01-1092 2001