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Applied Physics B

, Volume 71, Issue 5, pp 697–702 | Cite as

Laser diagnostics of NO reburning in fuel-rich propene flames

  • B. Atakan
  • A.T. Hartlieb
Article

Abstract.

Absolute NO concentrations were measured by laser-induced fluorescence (LIF) in three different fuel-rich non-sooting propene flames (φ=1.5, 1.8 and 2.3). The experiments were performed in low-pressure premixed propene flames with 0.2%-1% NO added. Laser diagnostics was applied as a tool for investigating reburn chemistry. The Q2(25.5) line in the A-X(0,0) band was excited because of the small temperature dependence of its ground state population. The NO fluorescence lifetimes were measured directly and compared to theoretical values. The initial NO levels are strongly reduced in all three flames. According to modeling results, the HCN mole fraction increases strongly with stoichiometry. As guidelines for laser diagnostics applications in such systems, the modeling results were analyzed with respect to the main reaction channels and reaction partners in fuel-rich flames.

PACS: 82.40.Py; 42.62.Fi 

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Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  • B. Atakan
    • 1
  • A.T. Hartlieb
    • 1
  1. 1.Physikalische Chemie 1, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, 33615 Bielefeld, Germany (Fax: +49-521/106-6027, E-mail: Atakan@uni-bielefeld.de)DE

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