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Flame dominated thermoacoustic instabilities in a system with high acoustic losses
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-3609-3005
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2016 (English)In: Combustion and Flame, ISSN 0010-2180, E-ISSN 1556-2921, Vol. 169, 209-215 p.Article in journal (Refereed) Published
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Text
Abstract [en]

The thermoacoustic stability behaviour of a flame is experimentally investigated in the presence of large acoustic losses. Recently it has become clear that under such conditions an instability can occur due to an intrinsic local feedbackloop at the heat source. The experimental results confirm that despite significant acoustic losses, thermoacoustic instabilities can still be present. These findings imply that the effectiveness of passive thermoacoustic damping devices is limited by the intrinsic stability properties of the flame. (C) 2016 The Combustion Institute. Published by Elsevier Inc. All rights reserved.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 169, 209-215 p.
Keyword [en]
Intrinsic instability, Thermoacoustics, Combustion instabilities, Acoustic losses
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-189913DOI: 10.1016/j.combustflame.2016.03.009ISI: 000378583600017Scopus ID: 2-s2.0-84966839150OAI: oai:DiVA.org:kth-189913DiVA: diva2:950369
Note

QC 20160729

Available from: 2016-07-29 Created: 2016-07-25 Last updated: 2016-11-30Bibliographically approved

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