We report the design and operation of a test device suitable for studying combustion oscillations produced by commercial-scale gas turbine fuel nozzles. Unlike conventional test stands, this test combustor uses a Helmholtz acoustic geometry to replicate the acoustic response that would otherwise be observed only during complete engine testing. We suggest that successful simulation of engine oscillations requires that the flame geometry and resonant frequency of the test device should match the complete engine environment. Instrumentation for measuring both pressure and heat release variation is described. Preliminary tests suggest the importance of characterizing the oscillating behavior in terms of a nozzle reference velocity and inlet air temperature. Initial tests also demonstrate that the stabilizing effect of a pilot flame depends on the operating conditions.
Issue Section:
Advanced Energy Systems
Topics:
Combustion,
Gas turbines,
Oscillations,
Engines,
Acoustics,
Flames,
Geometry,
Nozzles,
Combustion chambers,
Design,
Fuels,
Heat,
Instrumentation,
Pressure,
Resonance,
Simulation,
Temperature,
Testing
1.
Alsup, C. T., Zeh, C. M., and Blazewicz, S., eds. 1995, Proc. of the Advanced Turbine Systems Annual Program Review Meeting, 2 vols., DOE/METC-96/1023, NTIS/DE96000561 and NTIS/DE96000562, National Technical Information Service, Springfield, VA.
2.
Beer
J. M.
1995
, “Clean Combustion in Gas Turbines: Challenges and Technical Responses—A Review
,” Journal of Institute of Energy
, Vol. 68
, pp. 2
–10
.3.
Candel, S. M, 1992, “Combustion Instabilities Coupled by Pressure Waves and Their Active Control,” Twenty-Fourth (International) Symposium on Combustion, pp. 1277–1296.
4.
Halow, J. S., Maloney, D. J., and Richards, G. A., 1994, “METC Combustion Research Facility.” Proc. Advanced Turbine Systems Annual Program Review Meeting, DOE/OR-2025.
5.
Harrje, D. T., and Reardon, F. H., 1972, Liquid Propellant Rocket Combustion Instability, NASA SP-194.
6.
Janardan, B. A., 1973, “Damping of Axial Instabilities by Solid Propellant Rocket Exhaust Nozzles,” Ph.D. Thesis, Georgia Institute of Technology.
7.
Janardan
B. A.
Daniel
B. R.
Zinn
B. T.
1976
, “Measurements of Acoustic Responses of Gaseous Propellant Injectors
,” Journal of Sound and Vibration
, Vol. 47
(4
), pp. 559
–569
.8.
Keller
J. O.
Saito
K.
1987
, “Measurement of the Combusting Flow in a Pulse Combustor
,” Combustion Science and Technology
, Vol. 53
, pp. 137
–163
.9.
Keller
J. O.
Bramlette
T. T.
Dec
J. E.
Westbrook
C. K.
1989
, “Pulse Combustion: The Importance of Characteristic Times
,” Combustion and Flame
, Vol. 73
, pp. 33
–44
.10.
Kentfield, J. A. C., and Yerneni, P., 1985, “Pulsating Combustion Applied to a Small Gas Turbine,” ASME Paper No. 85-GT-52.
11.
Kentfield
J. A. C.
O’Blenes
M.
1988
, “Methods for Achieving a Combustion-Driven Pressure-Gain in Gas Turbines
,” ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol. 110
, pp. 704
–711
.12.
Kentfield
J. A. C.
Fernandes
L. C. V.
1990
, “Improvements to the Performance of a Prototype Pulse, Pressure-Gain, Gas Turbine Combustor
,” ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol. 112
, pp. 67
–72
.13.
Laudien, E., Pongratz, R., Pierro, P., and Preclik, D., 1995, “Experimental Procedures Aiding the Design of Acoustic Cavities,” in: Liquid Rocket Combustion Instability, American Institute of Aeronautics and Astronautics, Cambridge, MA, pp. 377–399.
14.
Lefebvre
A. H.
1995
, “The Role of Fuel Preparation in Low Emission Combustion
,” ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol. 117
, pp. 617
–654
.15.
Mahan, J. R., and Karchmer, A., 1991, “Combustion and Core Noise,” in: Aeroacoustics of Flight Vehicles: Theory and Practice. Vol. I: Noise Sources, NASA Langley Research Center; available from AIAA Technical Library.
16.
McManus
K. R.
Poinsot
T.
Candel
S. M.
1993
, “A Review of Active Control of Combustion Instabilities
,” Progress in Energy and Combustion Science
, Vol. 19
, pp. 1
–29
.17.
Mehta, G. K., Ramachandra, M. K., and Strahle, W. C., 1981, “Correlations Between Light Emission, Acoustic Emission, and Ion Density in Premixed Turbulent Flames,” The Eighteenth (International) Symposium on Combustion, The Combustion Institute, Pittsburgh, PA; pp. 1051–1059.
18.
Putnam, A. A., 1971, Combustion Driven Oscillations in Industry. American Elsevier Publishers, New York.
19.
Rayleigh, J. S. W., 1945, The Theory of Sound, Dover, New York, Vol. 2, p. 226.
20.
Richards, G. A., Gemmen, R. S., and Narayanswami, L., 1994, Aerovalve Pulse Combustion, Technical Note, DOE/METC-94/1009, NTIS/DE94012262, National Technical Information Service, Springfield, VA.
21.
Yang, V., and Anderson, W., eds., 1995, Liquid Rocket Combustion Instability, American Institute of Aeronautics and Astronautics, Cambridge, MA.
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