Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9757249 | Spectrochimica Acta Part B: Atomic Spectroscopy | 2005 | 6 Pages |
Abstract
Laser-Induced Breakdown Spectroscopy has been applied to laminar premixed methane-air flames in order to obtain, for the first time, quantitative measurements of atomic species densities in a reacting flow. The electron density and the plasma temperature were determined and it was shown that the hypothesis of local thermodynamic equilibrium is valid under the present experimental conditions. It was further shown, that the equivalence ratio Ï of methane-air mixtures can be quantitatively determined from the ratio of the number densities NH/NO, the latter being obtained from the ratio of the hydrogen (Hα at 656 nm) and oxygen (O(I) at 777 nm) atomic lines intensities.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
P. Stavropoulos, A. Michalakou, G. Skevis, S. Couris,