Heat release rate and pressure fluctuations of a lean premixed flame at different forcing levels

Okon, Aniekan, Kurji, Hayder, Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133 and Xue, Yiqin 2016. Heat release rate and pressure fluctuations of a lean premixed flame at different forcing levels. Presented at: The International Conference for Students on Applied Engineering, Newcastle upon Tyne, UK, 20-21 October 2016. Published in: Al-Shibaany, Z. Y. A. and Hameed, A. F. eds. 2016 International Conference for Students on Applied Engineering (ICSAE) Proceedings. Piscataway, NJ: IEEE, pp. 232-236. 10.1109/ICSAE.2016.7810194 Item availability restricted.

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Abstract

Prediction of limit cycle of combustion instability could be achieved by the examination of the nonlinear flame response to the acoustic oscillations within the combustor. This study uses the flame describing function framework to examine the effects of the forcing frequency and the fundamental frequency of the duct on the magnitude of the dominant acoustic modes of the combustion chamber. Results showed a phenorminal influence of the forcing frequencies on the magnitude of the dominant acoustic modes of the combustor with respect to its fundamental frequency, which are in agreement with recent studies. Results of this kind provide a promising novel approach to alienating instability boundaries in a combustion system.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	IEEE
ISBN:	9781467390538
Date of First Compliant Deposit:	9 September 2016
Date of Acceptance:	23 September 2016
Last Modified:	01 Nov 2022 11:14
URI:	https://orca.cardiff.ac.uk/id/eprint/94304

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