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Importance of Nonreactive Burner Acoustic Admittance on Thermo-Acoustic Instability

Published online by Cambridge University Press:  05 May 2011

Tzeng-Yuan Chen  and
Chien-Pang Chen
Tzeng-Yuan Chen*
Affiliation:
Department of Aerospace Engineering, Tamkang University, Taipei County, Taiwan 251, R.O.C.
Chien-Pang Chen*
Affiliation:
Department of Aerospace Engineering, Tamkang University, Taipei County, Taiwan 251, R.O.C.
*
*Associate Professor, Corresponding Author
**Graduate Research Assistant
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Abstract

The importance of nonreactive acoustic admittance at a burner exit plane on the flame-driving characteristic was discussed using the measured phase difference between the velocity and pressure oscillations, and the acoustic wave structure inside the duct. Also, the flame-driving characteristics were investigated by flame radiation measurements, and results were compared with those obtained previously from admittance studies. Results show that the comparisons are in good agreement. Also, the flame-driving characteristics are closed related to the acoustic wave structure at the burner exit plane, and could be qualitatively predicted by knowing the imaginary part of nonreactive burner acoustic admittance.

Keywords

Acoustic admittanceFlame radiation measurementCombustion instability
Type
Articles
Information
Journal of Mechanics , Volume 16 , Issue 4 , December 2000 , pp. 197 - 201
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2000

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References

REFERENCES

1Chen, T. Y. and Chen, M. G., “Investigations of Thermo-Acoustic Instabilities by Direct Acoustic Admittance Measurements,” the Chinese Journal of Mechanics, 16(3), pp. 133–136 (2000).CrossRefGoogle Scholar
2Janardan, B. A., Daniel, B. R. and Zinn, B. T., “Driving of Combustor Oscillations by Gaseous Propellant Injectors,” Seventeenth Symposium (International) on Combustionx, The Combustion Institute, pp. 1353–1361 (1978).Google Scholar
3Sankar, S. V., Hegde, U. G., Jagoda, J. I. and Zinn, B. T., “Driving of Axial Acoustic Wave by Side Wall Stabilized Premixed Flame,” Twenty-second Symposium (International) on Combustion, The Combustion Institute, Pittsburgh, p. 1371 (1988).Google Scholar
4Chen, T. Y., Hegde, U. G., Daniel, B. R. and Zinn, B. T., “Flame Radiation and Acoustic Intensity Measurements in Acoustically Excited Diffusion Flames,” Journal of Propulsion and Power, 9(2), p. 210 (1993).CrossRefGoogle Scholar
5Schimmer, H. and Vortmeyer, D., “Acoustical Oscillations in a Combustion System with a Flat Flame,” Combustion and Flame, 28: 17–24 (1977).CrossRefGoogle Scholar
6Hegde, U. G. and Zinn, B. T., “The Acoustic Boundary Layer in Porous Walled Duct with a Reacting Flow,” Twenty-First Symposium (International) on Combustion. The Combustion Institute, pp. 1993–2000 (1986).Google Scholar
7Mugridge, B. D., “Combustion Driven Oscillations,” Journal of Sound and Vibration, 70(3), p. 437 (1980).CrossRefGoogle Scholar
8McIntosh, A. C., “The Effect of Upstream Acoustic Forcing and Feedback on the Stability and Resonance Behavior of Anchored Flames,” Combustion Science and Technology, 49, p. 143 (1986).CrossRefGoogle Scholar
9Chen, T. Y. and Chen, M. G., “Sound Emission of Ducted Premixed Flames,” Journal of Sound and Vibration, 221(2), pp. 221–234 (1999).CrossRefGoogle Scholar
10Gaydon, A. G. and Wolfhard, H. G., Flames: Their Structure, Radiation and Temperature, Third Edition, Chapman and Hall Ltd (1970).Google Scholar
11Lord, Rayleigh, Theory of Sound, Vol. II, Dover Publication (1945).Google Scholar
12Putnam, A. A., Non-Steady Flame Propagation, Edited by Markstein, G. D., Pergmon, N. Y. (1964).Google Scholar