ARTICLE:

• RETRIEVAL OF ABSORPTION AND TEMPERATURE PROFILES IN A PREMIXED FLAME BY INVERSE RADIATIVE METHODS  download article

M. Sakami
Groupe de Recherche en Ingénierie des Procédés et Systémes,Département des Sciences Appliquees, Universite du Québec a Chicoutimi,555, boulevard de l'université, Chicoutimi, G7H 2B1, Quebec, Canada

M. Lallemand
LET, UMR CNRS 6608, ENSMA, 86960 Futuroscope, FRANCE

ABSTRACT

Inverse radiative methods are presented in order to reconstruct the axisymmetric thermal structure set up in a premixture propane-air flame. Spectral absorption and temperature profiles in a cross-section of the flame were carried out by inversion of the radiative transfer equation (RTE) from a set of parallel lines of sight emission and transmission measurements. The reconstruction methods that were used, the experimental apparatus and the obtained data are described for the case of a propane-air premixed flame. Transmission and emission spectra are given using a Fourier Transform Infrared Spectrometer working at 4cm⁻¹ resolution. Absorption profiles were determined for propane and carbone dioxide. A temperature profile is determined using only the carbone dioxide band when its emission by hot lines is significative.

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