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Proceedings Paper

Measurements of molecular carbon radical concentrations by saturated laser-induced fluorescence in hydrocarbon flames at atmospheric pressure
Author(s): Michele Marrocco; Massimo D'Apice; Stefano Giammartini; M. Magaldi; G. P. Romano
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Paper Abstract

The C2 abundance in flames at atmospheric pressure is reported for three fuel-rich combustion environments: acetylene/oxygen, Liquid Petroleum Gas (LPG)/air and methane/air flames. Measurements have been based on spectrographic and two-dimensional Laser-Induced Fluorescence (LIF) of the Δv = -1 d3IIg-a3IIu band. The oxyacetylene flame was utilized to establish a comparison with literature data and absolute values, calibrated through Rayleigh scattering, were found to be distributed within the 1014 cm-3 range. The induced emission from two Bunsen flames fed with LPG/air or methane/air was also investigated. Accumulated acquisitions were necessary to detect small C2 quantities in the order of 1010 cm-3 concentrated on the flame front.

Paper Details

Date Published: 22 September 2003
PDF: 10 pages
Proc. SPIE 5149, Laser Applications in Medicine, Biology, and Environmental Science, (22 September 2003); doi: 10.1117/12.519750
Show Author Affiliations
Michele Marrocco, ENEA (Italy)
Massimo D'Apice, ENEA (Italy)
Stefano Giammartini, ENEA (Italy)
M. Magaldi, Univ. of Rome La Sapienza (Italy)
G. P. Romano, Univ. of Rome La Sapienza (Italy)


Published in SPIE Proceedings Vol. 5149:
Laser Applications in Medicine, Biology, and Environmental Science
Gerhard Mueller; Valery V. Tuchin; Gennadii G. Matvienko; Christian Werner; Vladislav Ya. Panchenko, Editor(s)

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