An analytical model for the prediction of the dynamic response of premixed flames stabilized on a heat-conducting perforated plate

Handle URI:
http://hdl.handle.net/10754/597511
Title:
An analytical model for the prediction of the dynamic response of premixed flames stabilized on a heat-conducting perforated plate
Authors:
Kedia, Kushal S.; Ghoniem, Ahmed F.
Abstract:
The dynamic response of a premixed flame stabilized on a heat-conducting perforated plate depends critically on their coupled thermal interaction. The objective of this paper is to develop an analytical model to capture this coupling. The model predicts the mean flame base standoff distance; the flame base area, curvature and speed; and the burner plate temperature given the operating conditions; the mean velocity, temperature and equivalence ratio of the reactants; thermal conductivity and the perforation ratio of the burner. This coupled model is combined with our flame transfer function (FTF) model to predict the dynamic response of the flame to velocity perturbations. We show that modeling the thermal coupling between the flame and the burner, while accounting for the two-dimensionality of the former, is critical to predicting the dynamic response characteristics such as the overshoot in the gain curve (resonant condition) and the phase delay. Good agreement with the numerical and experimental results is demonstrated over a range of conditions. © 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
Citation:
Kedia KS, Ghoniem AF (2013) An analytical model for the prediction of the dynamic response of premixed flames stabilized on a heat-conducting perforated plate. Proceedings of the Combustion Institute 34: 921–928. Available: http://dx.doi.org/10.1016/j.proci.2012.06.146.
Publisher:
Elsevier BV
Journal:
Proceedings of the Combustion Institute
Issue Date:
Jan-2013
DOI:
10.1016/j.proci.2012.06.146
Type:
Article
ISSN:
1540-7489
Sponsors:
This work was supported by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorKedia, Kushal S.en
dc.contributor.authorGhoniem, Ahmed F.en
dc.date.accessioned2016-02-25T12:41:10Zen
dc.date.available2016-02-25T12:41:10Zen
dc.date.issued2013-01en
dc.identifier.citationKedia KS, Ghoniem AF (2013) An analytical model for the prediction of the dynamic response of premixed flames stabilized on a heat-conducting perforated plate. Proceedings of the Combustion Institute 34: 921–928. Available: http://dx.doi.org/10.1016/j.proci.2012.06.146.en
dc.identifier.issn1540-7489en
dc.identifier.doi10.1016/j.proci.2012.06.146en
dc.identifier.urihttp://hdl.handle.net/10754/597511en
dc.description.abstractThe dynamic response of a premixed flame stabilized on a heat-conducting perforated plate depends critically on their coupled thermal interaction. The objective of this paper is to develop an analytical model to capture this coupling. The model predicts the mean flame base standoff distance; the flame base area, curvature and speed; and the burner plate temperature given the operating conditions; the mean velocity, temperature and equivalence ratio of the reactants; thermal conductivity and the perforation ratio of the burner. This coupled model is combined with our flame transfer function (FTF) model to predict the dynamic response of the flame to velocity perturbations. We show that modeling the thermal coupling between the flame and the burner, while accounting for the two-dimensionality of the former, is critical to predicting the dynamic response characteristics such as the overshoot in the gain curve (resonant condition) and the phase delay. Good agreement with the numerical and experimental results is demonstrated over a range of conditions. © 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.en
dc.description.sponsorshipThis work was supported by King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectDynamic responseen
dc.subjectFlame transfer functionen
dc.subjectFlame-wall interactionen
dc.subjectLaminaren
dc.subjectPerforated-plateen
dc.titleAn analytical model for the prediction of the dynamic response of premixed flames stabilized on a heat-conducting perforated plateen
dc.typeArticleen
dc.identifier.journalProceedings of the Combustion Instituteen
dc.contributor.institutionMassachusetts Institute of Technology, Cambridge, United Statesen
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