Temperature response of an acoustically forced turbulent lean premixed flame: A quantitative experimental determination

Handle URI:
http://hdl.handle.net/10754/562605
Title:
Temperature response of an acoustically forced turbulent lean premixed flame: A quantitative experimental determination
Authors:
Chrystie, Robin ( 0000-0002-4012-3211 ) ; Burns, Iain Stewart; Kaminski, Clemens Friedrich
Abstract:
Temperature measurements have been taken on an acoustically forced lean premixed turbulent bluff-body stabilized flame. The burner used in this study is a test-bed to investigate thermoacoustic instability in gas-turbine engines at the University of Cambridge. Numerous experiments have been performed on the burner, one of which used two-line OH planar laser induced fluorescence to measure temperature. Here, we employ vibrational coherent anti-Stokes Raman scattering (CARS) of nitrogen as an alternative to measure temperature, circumventing the limitations of the former method. The use of nitrogen CARS avoids the problem of probing regions of the flame with low OH concentrations that resulted in erroneous temperature. Such an application of CARS showed that the results from previous efforts were systematically biased up to 47% close to the bluff-body. We also critically review the limitations of CARS used in our experiments, pertaining to spatial resolution and associated biasing further downstream from the bluff-body. Using the more accurate results from this work, more up-to-date computational fluid dynamical (CFD) models of the burner can be validated, with the aim of improved understanding and prediction of thermoacoustic instability in gas turbines. © 2013 Copyright Taylor and Francis Group, LLC.
KAUST Department:
Clean Combustion Research Center; Mechanical Engineering Program
Publisher:
Taylor & Francis
Journal:
Combustion Science and Technology
Issue Date:
2-Jan-2013
DOI:
10.1080/00102202.2012.714020
Type:
Article
ISSN:
00102202
Sponsors:
The work was sponsored by the EPSRC under grant EP/F028261/1, and by Rolls-Royce plc. Dr. Robin Chrystie was supported by an EPSRC CASE studentship, whose contributions are gratefully acknowledged. Dr. Iain Burns was supported by a research fellowship from St. John's College, University of Cambridge.
Appears in Collections:
Articles; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorChrystie, Robinen
dc.contributor.authorBurns, Iain Stewarten
dc.contributor.authorKaminski, Clemens Friedrichen
dc.date.accessioned2015-08-03T10:58:06Zen
dc.date.available2015-08-03T10:58:06Zen
dc.date.issued2013-01-02en
dc.identifier.issn00102202en
dc.identifier.doi10.1080/00102202.2012.714020en
dc.identifier.urihttp://hdl.handle.net/10754/562605en
dc.description.abstractTemperature measurements have been taken on an acoustically forced lean premixed turbulent bluff-body stabilized flame. The burner used in this study is a test-bed to investigate thermoacoustic instability in gas-turbine engines at the University of Cambridge. Numerous experiments have been performed on the burner, one of which used two-line OH planar laser induced fluorescence to measure temperature. Here, we employ vibrational coherent anti-Stokes Raman scattering (CARS) of nitrogen as an alternative to measure temperature, circumventing the limitations of the former method. The use of nitrogen CARS avoids the problem of probing regions of the flame with low OH concentrations that resulted in erroneous temperature. Such an application of CARS showed that the results from previous efforts were systematically biased up to 47% close to the bluff-body. We also critically review the limitations of CARS used in our experiments, pertaining to spatial resolution and associated biasing further downstream from the bluff-body. Using the more accurate results from this work, more up-to-date computational fluid dynamical (CFD) models of the burner can be validated, with the aim of improved understanding and prediction of thermoacoustic instability in gas turbines. © 2013 Copyright Taylor and Francis Group, LLC.en
dc.description.sponsorshipThe work was sponsored by the EPSRC under grant EP/F028261/1, and by Rolls-Royce plc. Dr. Robin Chrystie was supported by an EPSRC CASE studentship, whose contributions are gratefully acknowledged. Dr. Iain Burns was supported by a research fellowship from St. John's College, University of Cambridge.en
dc.publisherTaylor & Francisen
dc.subjectCombustionen
dc.subjectFlame instabilityen
dc.subjectGas turbinesen
dc.subjectLasersen
dc.subjectLean mixtureen
dc.subjectTemperature measurementen
dc.titleTemperature response of an acoustically forced turbulent lean premixed flame: A quantitative experimental determinationen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentMechanical Engineering Programen
dc.identifier.journalCombustion Science and Technologyen
dc.contributor.institutionDepartment of Chemical and Process Engineering, University of Strathclyde, Glasgow, United Kingdomen
dc.contributor.institutionDepartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdomen
kaust.authorChrystie, Robinen
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