Lee, T.; Shin, D.I.; Jeffries, J.B.; Hanson, R.K.; Bessler, W.G.; Schulz, Christof:
Laser-induced fluorescence detection of NO in high-pressure flames with A-X(0,0), (0,1), and (0,2) excitation
In: 40th AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, January 14-17, 2002, Paper No. 2002-0399
Buchaufsatz/Kapitel in Sammelwerk / Fach: Maschinenbau
Titel:
Laser-induced fluorescence detection of NO in high-pressure flames with A-X(0,0), (0,1), and (0,2) excitation
Autor(in):
Lee, T.; Shin, D.I.; Jeffries, J.B.; Hanson, R.K.; Bessler, W.G.; Schulz, Christof im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen
Erscheinungsjahr
2002
Erschienen in:
40th AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, January 14-17, 2002, Paper No. 2002-0399

Abstract:

Laser-induced fluorescence (LIF) techniques using excitation in the A-X and D-X electronic systems have proven a reliable technique for two-dimensional imaging of nitric oxide concentrations in practical combustion systems. However, at pressures above 10 atmospheres, attenuation of the excitation laser in the hot combustion gases and interference from molecular oxygen LIF causes significant problems for NO LIF. We compare here strategies for NO LIF detection exciting selected transitions in the A-X (0,0), (0,1), and (0,2) bands. We report measurements in laminar premixed methane/air flames at pressures between 1 and 60 bar, and based on these results, we discuss the advantages and problems of these three excitation strategies.