Combustor oscillating pressure stabilization and method

Gemmen, Randall S; Richards, George A; Yip, Mui-Tong Joseph; Robey, Edward H; Cully, Scott R; Addis, Richard E

Combustor oscillating pressure stabilization and method

Patent · Wed Dec 31 23:00:00 EST 1997

OSTI ID:871766

Gemmen, Randall S ^[1]; Richards, George A ^[1]; Yip, Mui-Tong Joseph ^[1]; Robey, Edward H ^[2]; Cully, Scott R ^[1]; Addis, Richard E ^[3]

Morgantown, WV
Westover, WV
Smithfield, PA

High dynamic pressure oscillations in hydrocarbon-fueled combustors typically occur when the transport time of the fuel to the flame front is at some fraction of the acoustic period. These oscillations are reduced to acceptably lower levels by restructuring or repositioning the flame front in the combustor to increase the transport time. A pilot flame front located upstream of the oscillating flame and pulsed at a selected frequency and duration effectively restructures and repositions the oscillating flame in the combustor to alter the oscillation-causing transport time.

Research Organization:: EG & G TECH SVCS OF WV INC

DOE Contract Number:: AC21-90MC26328

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Number(s):: US 5791889

OSTI ID:: 871766

Country of Publication:: United States

Language:: English

References (7)

Practical active control system for combustion oscillations Langhorne, P. J.; Dowling, A. P.; Hooper, N. Journal of Propulsion and Power, Vol. 6, Issue 3 https://doi.org/10.2514/3.25437	journal	May 1990
Active control for gas turbine combustors Brouwer, J.; Ault, B. A.; Bobrow, J. E. Symposium (International) on Combustion, Vol. 23, Issue 1 https://doi.org/10.1016/S0082-0784(06)80368-1	journal	January 1991
A review of active control of combustion instabilities McManus, K. R.; Poinsot, T.; Candel, S. M. Progress in Energy and Combustion Science, Vol. 19, Issue 1, p. 1-29 https://doi.org/10.1016/0360-1285(93)90020-F	journal	January 1993
Active control of reheat buzz Bloxsidge, G. J.; Dowling, A. P.; Hooper, N. AIAA Journal, Vol. 26, Issue 7 https://doi.org/10.2514/3.9970	journal	July 1988
Combustion instabilities coupled by pressure waves and their active control Candel, Sébastien M. Symposium (International) on Combustion, Vol. 24, Issue 1 https://doi.org/10.1016/S0082-0784(06)80150-5	journal	January 1992
Active control of unsteady combustion-induced oscillations Gulati, Anil; Mani, Ramani Journal of Propulsion and Power, Vol. 8, Issue 5 https://doi.org/10.2514/3.23599	journal	September 1992
Closed-loop amplitude modulation control of reacting premixed turbulent jet Gutmark, E.; Parr, T. P.; Hanson-Parr, D. M. AIAA Journal, Vol. 29, Issue 12 https://doi.org/10.2514/3.10853	journal	December 1991

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Related Subjects

/431/60/
acceptably
acoustic
alter
combustor
combustors
duration
dynamic
dynamic pressure
effectively
flame
flame front
fraction
frequency
front
fuel
hydrocarbon-fueled
increase
levels
located
located upstream
method
occur
oscillating
oscillating pressure
oscillation-causing
oscillations
period
pilot
pilot flame
pressure
pressure oscillations
pulsed
reduced
repositioning
repositions
restructures
restructuring
selected
selected frequency
stabilization
time
transport
typically
upstream

Combustor oscillating pressure stabilization and method

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References (7)

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