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TECHNICAL PAPERS

Laser-Induced Fluorescence Measurements in Venturi-Cascaded Propane Gas Jet Flames

[+] Author and Article Information
Ala R. Qubbaj

Engineering Department, University of Texas-Pan American, Edinburg, TX 78539 e-mail: qubbaj@panam.edu

S. R. Gollahalli

School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK 73019 e-mail: gollahal@ou.edu

J. Energy Resour. Technol 123(2), 158-166 (Nov 10, 2000) (9 pages) doi:10.1115/1.1368120 History: Received August 12, 1999; Revised November 10, 2000
Copyright © 2001 by ASME
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References

Figures

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Experimental setup (left): venturi-cascade dimensions and measurement locations (right)
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Schematic of LIF instrumentation
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Radial temperature profiles for the baseline and cascaded flames at different axial locations—(a) near-burner, (b) midflame, (c) far-burner
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Radial NO profiles for the baseline and cascaded flames at different axial locations—(a) near-burner, (b) midflame, (c) far-burner
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Axial volumetric soot concentration profiles for the baseline and cascaded flames at Re=5100
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Relative LIF signal (concentration) profiles at x/d=20 for the baseline and cascaded flames at Re=5100— (a) on resonance (OH+PAH+background), (b) off resonance (PAH+background), (c) net (OH)
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Relative LIF signal (concentration) profiles at x/d=100 for the baseline and cascaded flames at Re=5100—(a) on resonance (OH+soot+background), (b) off resonance (soot+background), (c) net (OH)
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Relative LIF signal (concentration) profiles at x/d=20 for the baseline and cascaded flames at Re=5100—(a) on resonance (CH+PAH+background), (b) off resonance (PAH+background), (c) net (CH)
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Relative LIF signal (concentration) profiles at x/d=20 for the baseline and cascaded flames at Re=5100—(a) on resonance (CN+PAH+background), (b) off resonance (PAH+background), (c) net (CN)

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