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Control Laboratory Experiments in ThermoAcoustics Using the Rijke Tube

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Author

Summary, in English

We report on experiments that investigate the dynamics, identification and control of thermoacoustic phenomena in a Rijke tube apparatus. These experiments are relatively simple to construct and conduct in a typical, well-equipped undergraduate controls laboratory, yet allow for the exploration of rich and coupled acoustic and thermal dynamics, the associated thermoacoustic instabilities, and the use of acoustic feedback control for their stabilization. We describe the apparatus construction, investigation of thermoacoustic dynamics and instabilities in both open-loop and closed-loop configurations, closed-loop identification of the underlying dynamics, as well as model validation. We also summarize a transcendental transfer function analysis that explains the underlying phenomena. These experiments are notable for the fact that rich thermoacoustic phenomena can be analyzed using introductory concepts such as the frequency response and root locus, and thus can be performed and understood by controls students with relatively little background in acoustics or heat transfer.

Publishing year

2014

Language

English

Publication/Series

American Control Conference, 2014

Document type

Conference paper

Topic

  • Control Engineering

Keywords

  • Aerospace
  • Identification
  • Control education

Conference name

American Control Conference, 2014

Conference date

2014-06-04 - 2014-06-06

Conference place

Portland, OR, United States

Status

Published

Research group

  • LCCC