Flame monitoring of a gas turbine combustor using a characteristic spectral pattern from a dynamic pressure sensor in the combustor
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United States of America Patent
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Oct 17, 2017
Issued Date -
Jan 29, 2015
app pub date -
Oct 14, 2014
filing date -
Apr 12, 2013
priority date (Note) -
Published
status (Latency Note)
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Abstract
The state of a flame in a gas turbine engine combustor is acoustically monitored using a dynamic pressure sensor within the combustor. A spectral pattern of a dynamic pressure sensor output signal from the sensor is compared with a characteristic frequency pattern that includes information about an acoustic pattern of the flame and information about acoustic signal canceling due to reflections within the combustor. The spectral pattern may also be compared with a characteristic frequency pattern including information about a flame-out condition in the combustor.
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International Classification(s)
- G01H:MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC....
- G01K:MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT;....
- G01M:TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR S....
- G01L:MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL ....
- F23M:CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT....
- F23N:REGULATING OR CONTROLLING COMBUSTION
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
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