Design for thermo-acoustic stability: Procedure and data base

Stefanie Bade, Michael Wagner, Christoph Hirsch, Thomas Sattelmayer, Bruno Schuermans

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

A Design for Thermo-Acoustic Stability (DeTAS) procedure is presented, that aims at selecting a most stable burner geometry for a given combustor. It is based on the premise that a thermo-acoustic stability model of the combustor can be formulated and that a burner design exists, which has geometric design parameters that sufficiently influence the dynamics of the flame. Describing the burner and flame dynamics in dependence of the geometrical parameters an optimization procedure involving a linear stability model of the target combustor maximizes the damping and thereby yields the optimal geometrical parameters. To demonstrate the procedure on an existing annular combustor a generic burner design was developed that features two geometrical parameters that can easily be adjusted. To provide the data base for the DeTAS procedure static and dynamical properties of burner and flame were measured for three by three configurations at a fixed operation point. The data is presented and discussed. It is found that the chosen design exhibits a significant variability of the flame dynamics in dependence of the geometrical parameters indicating that a DeTAS should be possible for the targeted annular combustor.

Original languageEnglish
Title of host publicationASME Turbo Expo 2013
Subtitle of host publicationTurbine Technical Conference and Exposition, GT 2013
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)9780791855102
DOIs
StatePublished - 2013
EventASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013 - San Antonio, Tx, United States
Duration: 3 Jun 20137 Jun 2013

Publication series

NameProceedings of the ASME Turbo Expo
Volume1 A

Conference

ConferenceASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013
Country/TerritoryUnited States
CitySan Antonio, Tx
Period3/06/137/06/13

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