Maria Heckl m.a.heckl@keele.ac.uk
Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition
Heckl, Maria; Kosztin, Béla
Authors
Béla Kosztin
Abstract
A major problem in the development of low-pollution combustion systems are thermo-acoustic instabilities, i.e. large-amplitude oscillations generated by a feedback between the unsteady heat release and acoustic waves. In order to develop robust control strategies, it is necessary to have a predictive model that captures the physics of the phenomenon. The aim of this paper is to present such a model for a dump combustor with a generic heat release law, and fitted at the inlet end with a perforated plate backed by a tuneable cavity. Our model leads to a simple governing equation for one acoustic mode in the combustor, and from this equation stability predictions can be made with a minimum of numerical effort. We will use it to examine the effect of various system parameters.
Citation
Heckl, M., & Kosztin, B. (2013). Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition. International Journal of Spray and Combustion Dynamics, 5(3), 243-271. https://doi.org/10.1260/1756-8277.5.3.243
Journal Article Type | Article |
---|---|
Online Publication Date | Sep 1, 2013 |
Publication Date | 2013-09 |
Deposit Date | Jun 14, 2023 |
Journal | International Journal of Spray and Combustion Dynamics |
Print ISSN | 1756-8277 |
Electronic ISSN | 1756-8285 |
Publisher | SAGE Publications |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
Issue | 3 |
Pages | 243-271 |
DOI | https://doi.org/10.1260/1756-8277.5.3.243 |
Keywords | General Physics and Astronomy; Automotive Engineering; Energy Engineering and Power Technology |
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