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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 34 — Dec. 1, 2005
  • pp: 7414–7423

Two-color laser-induced incandescence (2C-LII) technique for absolute soot volume fraction measurements in flames

Silvana De Iuliis, Francesco Cignoli, and Giorgio Zizak  »View Author Affiliations


Applied Optics, Vol. 44, Issue 34, pp. 7414-7423 (2005)
http://dx.doi.org/10.1364/AO.44.007414


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Abstract

A two-color version of the laser-induced incandescence (2C-LII) technique was implemented for measuring absolute soot volume fraction in flames. By using a calibrated tungsten ribbon lamp, soot peak temperatures were measured as a function of fluence at several locations in an ethylene diffusion flame by using a steeply edged laser beam profile. Above a certain fluence threshold, peak temperatures were tightly distributed just above 4000 K independent of the particle size and number density. Radial profiles of soot volume fraction were obtained and compared (not calibrated) with results from the laser extinction technique. Good agreement showed the validity of the 2C-LII technique at a controlled fluence.

© 2005 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(280.1740) Remote sensing and sensors : Combustion diagnostics
(280.2470) Remote sensing and sensors : Flames
(300.2530) Spectroscopy : Fluorescence, laser-induced

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: October 11, 2004
Revised Manuscript: March 7, 2005
Manuscript Accepted: March 11, 2005
Published: December 1, 2005

Citation
Silvana De Iuliis, Francesco Cignoli, and Giorgio Zizak, "Two-color laser-induced incandescence (2C-LII) technique for absolute soot volume fraction measurements in flames," Appl. Opt. 44, 7414-7423 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-34-7414

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