Flame transfer function measurements of turbulent premixed flames are made in a model lean-premixed, swirl-stabilized, gas turbine combustor. , , and chemiluminescence emissions are measured to determine heat release oscillation from a whole flame, and the two-microphone technique is used to measure inlet velocity fluctuation. 2D chemiluminescence imaging is used to characterize the flame shape: the flame length and flame angle . Using -natural gas composite fuels, , a very short flame is obtained and hydrogen enrichment of natural gas is found to have a significant impact on the flame structure and flame attachment points. For a pure natural gas flame, the flames exhibit a “V” structure, whereas -enriched natural gas flames have an “M” structure. Results show that the gain of M flames is much smaller than that of V flames. Similar to results of analytic and experimental investigations on the flame transfer function of laminar premixed flames, it shows that the dynamics of a turbulent premixed flame is governed by three relevant parameters: the Strouhal number , the flame length , and the flame angle . Two flames with the same flame shape exhibit very similar forced responses, regardless of their inlet flow conditions. This is significant because the forced flame response of a highly turbulent, practical gas turbine combustor can be quantitatively generalized using the nondimensional parameters, which collapse all relevant input conditions into the flame shape and the Strouhal number.
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April 2010
Research Papers
Characterization of Forced Flame Response of Swirl-Stabilized Turbulent Lean-Premixed Flames in a Gas Turbine Combustor
Kyu Tae Kim,
Kyu Tae Kim
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802
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Jong Guen Lee,
Jong Guen Lee
Department of Mechanical and Nuclear Engineering,
e-mail: jxl145@psu.edu
The Pennsylvania State University
, University Park, PA 16802
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Hyung Ju Lee,
Hyung Ju Lee
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802
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Bryan D. Quay,
Bryan D. Quay
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802
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Domenic A. Santavicca
Domenic A. Santavicca
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802
Search for other works by this author on:
Kyu Tae Kim
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802
Jong Guen Lee
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802e-mail: jxl145@psu.edu
Hyung Ju Lee
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802
Bryan D. Quay
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802
Domenic A. Santavicca
Department of Mechanical and Nuclear Engineering,
The Pennsylvania State University
, University Park, PA 16802J. Eng. Gas Turbines Power. Apr 2010, 132(4): 041502 (8 pages)
Published Online: January 19, 2010
Article history
Received:
March 21, 2009
Revised:
March 30, 2009
Online:
January 19, 2010
Published:
January 19, 2010
Citation
Kim, K. T., Lee, J. G., Lee, H. J., Quay, B. D., and Santavicca, D. A. (January 19, 2010). "Characterization of Forced Flame Response of Swirl-Stabilized Turbulent Lean-Premixed Flames in a Gas Turbine Combustor." ASME. J. Eng. Gas Turbines Power. April 2010; 132(4): 041502. https://doi.org/10.1115/1.3204532
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