| 摘要 |
<p>System for preventing the onset, or mitigating the effect of thermoacoustic instability in annular combustors of premixed combustion gas turbines, that involves the inclusion in the plenum (7) of walls (15) oriented in a meridian direction so as to obstruct the circulation of tangential flows inside said space. These walls are situated in suitable azimuthal positions so as to contrast the onset of any standing oscillation modes; they shall therefore preferably divide the space in the plenum asymmetrically and the resulting annular volumes shall thus extend preferably along azimuthal sectors whose angular widths are not multiples of one another.</p> |
