BURNER FOR A GAS TURBINE AND METHOD FOR OPERATING THE BURNER

The invention relates to a burner (1) with a control unit (11), a combustion chamber (10), a pressure sensor and fuel stages (2, 3, 5, 6, 8) which are arranged to supply fuel with a respective mass flow to the combustion chamber (10), wherein the mass flows are controlled by the control unit (11), w...

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Bibliographic Details
Main Authors GEIPEL, Philipp, MAGNUSSON, Rikard, MANRIQUE CARRERA, Arturo, LINDHOLM, Annika
Format Patent
LanguageEnglish
French
German
Published 16.09.2020
Subjects
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
HEATING
LIGHTING
MECHANICAL ENGINEERING
REGULATING OR CONTROLLING COMBUSTION
WEAPONS
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Summary:The invention relates to a burner (1) with a control unit (11), a combustion chamber (10), a pressure sensor and fuel stages (2, 3, 5, 6, 8) which are arranged to supply fuel with a respective mass flow to the combustion chamber (10), wherein the mass flows are controlled by the control unit (11), wherein the pressure sensor is adapted to measure a pressure sequence (14) in the combustion chamber (10) or in the burner (1) and to transfer the pressure sequence (14) to the control unit (11) which is adapted to perform a Fourier transformation on at least one determined timespan (t1, t2, t3, t4) of the pressure sequence (14) to result in a pressure spectrum (27, 28, 29, 30) having a maximum (31, 32, 33, 34) within a frequency band (24) and wherein the control unit (11) is adapted to perform a comparison of the maximum (31, 32, 33, 34) with a predefined threshold (26) and to control the mass flows by using the comparison to reduce and/or to control pressure fluctuations in the combustion chamber (10).
Bibliography:Application Number: EP20190706890