caa a22 4500 445369337 CHVBK 20180317142941.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00340-011-4497-0 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4497-0 Assessment of interferences to nonlinear two-line atomic fluorescence (NTLAF) in sooty flames [Elektronische Daten] [Q. Chan, P. Medwell, Z. Alwahabi, B. Dally, G. Nathan] Nonlinear excitation regime two-line atomic fluorescence (NTLAF) is a laser-based thermometry technique that has application in turbulent flames with soot. However, no assessment of the various interferences from soot or its precursors in flames with high soot loadings on the technique is available. To examine these issues, both on- and off-wavelength NTLAF measurements are presented and compared for laminar nonpremixed ethylene-air flames. Laser-induced incandescence (LII) measurements were used to determine the corresponding soot concentration and location in the investigated flames. The measurements indicate that interferences, such as spurious scattering and laser-induced incandescence from soot, are not significant for the present set of flame conditions. However, interferences from soot precursors, predominantly condensed species (CS) and perhaps polycyclic aromatic hydrocarbons (PAH), can be significant. Potential detection schemes to correct or circumvent these interference issues are also presented. Springer-Verlag, 2011 Chan Q. School of Chemical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut Medwell P. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut Alwahabi Z. School of Chemical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut Dally B. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut Nathan G. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut Applied Physics B Springer-Verlag 104/1(2011-07-01), 189-198 0946-2171 104:1<189 2011 104 340 https://doi.org/10.1007/s00340-011-4497-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4497-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chan Q. School of Chemical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut NATIONALLICENCE 700 1- Medwell P. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut NATIONALLICENCE 700 1- Alwahabi Z. School of Chemical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut NATIONALLICENCE 700 1- Dally B. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut NATIONALLICENCE 700 1- Nathan G. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, S.A., Australia aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 104/1(2011-07-01), 189-198 0946-2171 104:1<189 2011 104 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer