Optical unsteady characterization of turbulent combustion: application in an active control system

R. Bruschi, E. Giacomazzi, S. Giammartini, E. Giulietti, F. Manfredi, C. Stringola, S. Daniele

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

This paper reports ENEA's experience in developing an active control system to increase flame blow-out limits in an axisymmetric premixed bluff-body burner. The reactive mixture is composed of CH4 and air, and it burns at atmospheric pressure. The control strategy consists in pulsating coaxial air jets exhausted from a ring surrounding the burner exit section. It has been observed that this configuration increases flame anchoring and reduces noise. The control variable is the flame chemiluminescence sampled by means of photodiode looking at the anchoring recirculation zone. Spectral analysis of chemiluminescence reveals information related to turbulence and chemical kinetics dynamics, thus becoming an important instrument to capture precursor events of flame instabilities. Copyright © 2005 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
Original languageEnglish
Publication statusPublished - 2005
Event41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit - , United States
Duration: 1 Jan 2005 → …

Conference

Conference41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
CountryUnited States
Period1/1/05 → …

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Bruschi, R., Giacomazzi, E., Giammartini, S., Giulietti, E., Manfredi, F., Stringola, C., & Daniele, S. (2005). Optical unsteady characterization of turbulent combustion: application in an active control system. Paper presented at 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, United States.