Invention Grant
- Patent Title: Method for controlling the pressure dynamics and for estimating the life cycle of the combustion chamber of a gas turbine
- Patent Title (中): 用于控制压力动力学和估计燃气轮机燃烧室的寿命周期的方法
-
Application No.: US12098563Application Date: 2008-04-07
-
Publication No.: US08868313B2Publication Date: 2014-10-21
- Inventor: Antonio Asti
- Applicant: Antonio Asti
- Applicant Address: IT Florence
- Assignee: Nuovo Pignone S.p.A.
- Current Assignee: Nuovo Pignone S.p.A.
- Current Assignee Address: IT Florence
- Agency: GE Global Patent Operation
- Priority: ITMI2007A1048 20070523
- Main IPC: G06F19/00
- IPC: G06F19/00 ; F23R3/34 ; F23N3/00 ; F23N5/00 ; F23N5/16

Abstract:
A method for controlling the combustion in a gas turbine including measuring, with one or more probes situated adjacent to the combustion chamber of the turbine, the amplitude of the pressure oscillations inside the combustion chamber and the persistence time or cycle of the same oscillations, evaluating the behavior under fatigue conditions of the combustion chamber, by constructing the Wohler curve for a certain material which forms the combustion chamber for a predefined combustion frequency and for the amplitude and cycle values of the pressure oscillations measured, measuring the cumulative damage to the combustion chamber during functioning under fatigue conditions of the turbine using the Palmgren-Miner hypothesis and exerting protection actions of the turbine if the cumulative damage value measured is exceeded.
Public/Granted literature
Information query