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A key to achieve ignition carbon monoxide generation/consumption in blue-flame period during hydrocarbon compression ignition

Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A criterion between success and failure of marginal fuel/air compression ignition was searched for using a rapid compression machine. A barely achieved ignition process was compared to a case no ignition was established due to a slightly insufficient compression pressure level. The differential on the chemical species histories during the induction periods between both cases was examined by continual different-timing gas samplings. A distinguished difference could be found only on the carbon-monoxide/carbon-dioxide ratio between the flammable and nonflammable critical conditions. The ratio increased continuously in the ignition success cases. There were no differences in other species concentration, such as gaseous water, hydrogen, formaldehyde and ethylene . At the time just before the final hot-flame onset the carbon-monoxide concentration came up to around 7 000 ppm, independent of the mixture strength. A steady carbon-monoxide/carbon-dioxide ratio was observed in the case no hot-flame onset was established. Continuous growing of carbon monoxide during the blue-flame period would be an indication for the transfer to the final hot-flame ignition.
Twórcy
autor
  • Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan +81-52-735-5329, +81-52-735-5566: Fax
autor
  • Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan +81-52-735-5329, +81-52-735-5566: Fax
autor
  • Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan +81-52-735-5329, +81-52-735-5566: Fax
Bibliografia
  • (1) Levedahl, W. J and Yokley, C. R., New Data on Automotive Combustion: Research on the Nature of Engine Knock, Technical News Bulletin, 37-8, (1953), 113, National Bureau of Standards.
  • (2) Agnew, W. G. and Agnew, J. T., Composition Profiles of the Diethyl Ether-Air Two-Stage Reaction Stabilized in a Flat-Flame Burner, 10th Symp. on Comb., (1965), 123, The Combustion Institute.
  • (3) Minetti, R., Carlier, M., Ribaucour, M., Therssen, E. and Sochet, L. R., A Rapid Compression Machine Investigation of Oxidation and Auto-Ignition of n-Heptane: Measurement and Modeling, Comb, and Flame, 102, (1995), 298, The Combustion Institute.
  • (4) Furutani, M. and Ohta, Y., A Novel Attempt at Elimination of Piston Compression Ignition, Proceedings of 3rd COMODIA, (1994), 189.
  • (5) Ohta, Y. and Furutani, M., Identification of Cool and Blue Flames in Compression Ignition, archivum combustionis 11-1/2, (1991), 44, Polish Academy of Sciences.
  • (6) Ohta, Y. and Takahashi, H., Temperature and Pressure Effect in Cool and Blue Flames, Progress in Astronautics and Aeronautics, 88, (1983), 38, AIAA.
  • (7) Furutani, M., Ohta, Y., Kono, M. and Hasegawa, M., An Ultra-Lean Premixed Compression-Ignition Engine Concept and its Characteristics, Proceedings of 4th COMODIA, (1998), 173.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ7-0004-0037
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