| Autor: |
Lawitzki, Annette, Bittner, Jürgen, Kohse-Höinghaus, Katharina |
| Zdroj: |
Chemical Physics Letters; December 1990, Vol. 175 Issue: 5 p429-433, 5p |
| Abstrakt: |
Spatially resolved N-atom concentration and temperature profiles were measured in several stoichiometric, flat, premixed, low-pressure H2/O2/N2flames doped with small amounts of N-containing fuels. Temperature was obtained from OH (A 2Σ+−X 2Π, 1−0) excitation spectra. N atoms were detected by two-photon laser-induced fluorescence, exciting the 3p 4Do72state near 211nm and monitoring the (3p 4Do−3s 4P) transition near 870 nm. N-atom concentrations were determined with the aid of a calibration technique using known atom concentrations in a discharge flow reactor and previously determined quenching coefficients. In the flames, peak N-atom mole fractions ranged from about 3 to 90 ppm. |
| Databáze: |
Supplemental Index |
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