Bessler, W.G.; Schulz, Christof:
Quantitative multi-line NO-LIF temperature imaging
2004
In: Appl. Phys. B., Jg. 78 (2004), Heft 5, S. 519 - 533
Artikel/Aufsatz in Zeitschrift / Fach: Maschinenbau
Titel:
Quantitative multi-line NO-LIF temperature imaging
Autor(in):
Bessler, W.G.; Schulz, Christof im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen
Erscheinungsjahr:
2004
Erschienen in:
Appl. Phys. B., Jg. 78 (2004), Heft 5, S. 519 - 533

Abstract:

A novel temp.-imaging technique based on laser-induced fluorescence of nitric oxide is presented, analyzed and applied. Multi-line rotational thermometry is combined with an efficient spectra-fitting procedure in an imaging configuration. The technique is sensitive over a wide range of temps. and robustly applicable to different steady combustion and flow systems. Application is shown in premixed and partially premixed ethylene/air Bunsen flames with equivalence ratios between 0.7 and 3.0, and the results are compared to coherent anti-Stokes Raman-scattering temp. measurements. The technique is robust against strong elastic scattering from soot in the rich flames. It yields abs., quant. temp. measurements without the necessity of external calibration.