| 摘要 |
<p>The invention relates to a A damper for combustion oscillation damping for a gas turbine, comprises a resonator cavity with a box or cylinder shape, a neck in flow communication with the resonator cavity and a combustion chamber, wherein the length L neck of the neck equal or greater than a maximum distance l max that a hot gas ingested from the combustion chamber reaches in the neck, wherein the maximum distance l max is determined according to the following equation: l max = ˆ« t 1 t 2 U - p ^ Á U �¢ ¶ �¢ sin É �¢ t �¢ dt . With the solution of the present invention, the damper used to damping combustion oscillation may prevent hot gas ingestion during normal operations by uniquely determining the dimensions of the neck connecting the resonator cavity and the combustion chamber.</p> |
