Method for controlling the pressure dynamics and for...

Details Method for controlling the pressure dynamics and for... Method for controlling the pressure dynamics and for...

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 9/00 (2006.01)

Patent

CA 2630953

A method is described for controlling the combustion in a gas turbine. The method comprises the phases of measuring, by means of one or more probes (30) situated in correspondence with the combustion chamber (14) of the turbine, the amplitude of the pressure oscillations inside the combustion chamber (14) and the persistence time or cycle of the same oscillations, evaluating the behaviour under fatigue conditions of the combustion chamber (14), by constructing the Wohler curve for a certain material which forms the combustion chamber (14) for a predefined combustion frequency and for the amplitude and cycle values of the pressure oscillations measured, measuring the cumulative damage (D) to the combustion chamber (14) during functioning under fatigue conditions of the turbine by means of the Palmgren-Miner hypothesis and exerting protection actions of the turbine if the cumulative damage value (D) measured is exceeded.

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