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Type: Journal article
Title: Soot volume fraction in a piloted turbulent jet non-premixed flame of natural gas
Author: Qamar, N.
Alwahabi, Z.
Chan, Q.
Nathan, G.
Roekaerts, D.
King, K.
Citation: Combustion and Flame, 2009; 156(7):1339-1347
Publisher: Elsevier Science Inc
Issue Date: 2009
ISSN: 0010-2180
Statement of
N.H. Qamar, Z.T. Alwahabi, Q.N. Chan, G.J. Nathan, D. Roekaerts, K.D. King
Abstract: Planar laser-induced incandescence (LII) has been used to measure soot volume fraction in a well-characterised, piloted, turbulent non-premixed flame known as the "Delft Flame III". Simulated Dutch natural gas was used as the fuel to produce a flame closely matching those in which a wide range of previous investigations, both experimental and modelling, have been performed. The LII method was calibrated using a Santoro-style burner with ethylene as the fuel. Instantaneous and time-averaged data of the axial and radial soot volume fraction distributions of the flame are presented here along with the Probability Density Functions (PDFs) and intermittency. The PDFs were found to be well-characterised by a single exponential distribution function. The distribution of soot was found to be highly intermittent, with intermittency typically exceeding 97%, which increases measurement uncertainty. The instantaneous values of volume fraction are everywhere less than the values in strained laminar flames. This is consistent with the soot being found locally in strained flame sheets that are convected and distorted by the flow. Crown Copyright © 2009.
Keywords: Soot
Turbulent non-premixed flame
Laser-induced incandescence
DOI: 10.1016/j.combustflame.2009.02.011
Appears in Collections:Aurora harvest 5
Environment Institute Leaders publications
Mechanical Engineering publications

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