Determination of soot temperature, volume fraction and refractive index from flame emission spectrometry

Ayranci I., Vaillon R., Selcuk N., Andre F., Escudie D.

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, vol.104, no.2, pp.266-276, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 104 Issue: 2
  • Publication Date: 2007
  • Doi Number: 10.1016/j.jqsrt.2006.07.013
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.266-276
  • Keywords: combustion diagnostics, soot, refractive index, flame emission spectroscopy, optical tomography, OPTICAL-PROPERTIES, RADIATION, TOMOGRAPHY
  • Middle East Technical University Affiliated: Yes


An inversion scheme based on tomographic reconstruction of flame emission spectra has been developed for nonintrusive characterization of soot temperature and volume fraction fields within an optically thin axisymmetric flame by extracting characteristic information on soot refractive index from spectral gradients of emission spectra. Its performance is assessed by providing input data obtained from intensities simulated by a direct code based on experimental data for a flame available in the literature. Proposed method was found to be especially powerful in the near-infrared range for accurate prediction of flame properties where spectral variation of optical constants is significant. (c) 2006 Elsevier Ltd. All rights reserved.