Effect of burner partitioning on system thermo-acoustics

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Abstract

In this paper the thermo-acoustic properties of a system equipped with a segmented burner are investigated. Such segmentation can for example be realized by combining two different burners on the same deck. The study is conducted using finite element and network modelling techniques. It is found that even a small spatial separation of the burner's sections can lead to significant alteration of the global acoustic behavior of the system. In particular, the location of the eigenmodes and hence the stability of the system can be affected. It is shown that the local modification of the acoustic field in the vicinity of the partitioned burner is the physical reason for this phenomena. This finding poses some limitations on to use of the lumped transfer function decomposition approach to estimate the global burner response of a composite flame/burner.

Original languageEnglish
Title of host publication18th International Congress on Sound and Vibration 2011, ICSV 2011
PublisherInternational Institute of Acoustics and Vibrations
Pages625-632
Number of pages8
ISBN (Print)978-161839-259-6
Publication statusPublished - 1 Jan 2011
Event18th International Congress on Sound and Vibration, ICSV 2011 - Rio de Janeiro, Brazil
Duration: 10 Jul 201114 Jul 2011
http://www.lavi.coppe.ufrj.br/icsv18/

Conference

Conference18th International Congress on Sound and Vibration, ICSV 2011
Abbreviated titleICSV 18
Country/TerritoryBrazil
CityRio de Janeiro
Period10/07/1114/07/11
OtherICSV18
Internet address

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