Comparison of Flame Transfer Functions acquired by Chemiluminescence and Density Fluctuation Measurements

Johannes Peterleithner, Riccardo Basso, Franz Heitmeir, Jakob Woisetschläger, Raimund Schlüßler, Jürgen Czarske, Andreas Fischer

Research output: Contribution to conferencePaper

Abstract

The goal of this study was to measure the Flame Transfer Function of a perfectly and a partially premixed turbulent flame by means of Laser Interferometric Vibrometry. For the first time, this technique is used to detect integral heat release fluctuations. The results were compared to classical OH*-chemiluminescence measurements. Effects of equivalence ratio waves and vortex rollup were found within those flames and were then investigated by means of time resolved planar CH*/OH*-chemiluminescence and Frequency modulated Doppler global velocimetry. This work is motivated by the difficulties chemiluminescence encounters when faced with partially premixed flames including equivalence ratio waves and flame stretching. LIV, recording the time derivative of the density fluctuations as line-of-sight data, is not affected by these flame properties.
Original languageEnglish
Publication statusPublished - 2016
EventASME Turbo Expo 2016 - Seoul, Seoul, Korea, Republic of
Duration: 13 Jun 201617 Jun 2016

Conference

ConferenceASME Turbo Expo 2016
CountryKorea, Republic of
CitySeoul
Period13/06/1617/06/16

Keywords

  • Thermoakustik

Fields of Expertise

  • Sustainable Systems
  • Mobility & Production

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    Peterleithner, J., Basso, R., Heitmeir, F., Woisetschläger, J., Schlüßler, R., Czarske, J., & Fischer, A. (2016). Comparison of Flame Transfer Functions acquired by Chemiluminescence and Density Fluctuation Measurements. Paper presented at ASME Turbo Expo 2016, Seoul, Korea, Republic of.