Back to Search
Start Over
On the use of Helmholtz resonators for damping acoustic pulsations in industrial gas turbines
- Source :
- Journal of Engineering for Gas Turbines and Power. April, 2004, Vol. 126 Issue 2, p271, 5 p.
- Publication Year :
- 2004
-
Abstract
- In this work, the application of Helmholtz resonators for damping low-frequency pulsations in gas turbine combustion chambers is discussed. We present a nonlinear model for predicting the acoustic response of resonators including the effect of purging air. Atmospheric experiments are used to validate the model, which is employed to design a resonator arrangement for damping low-frequency pulsations in an ALSTOM GT11N2 gas turbine. The predicted damper impedances are used as the boundary condition in the three-dimensional analysis of the combustion chamber. The suggested arrangement leads to a significant extension of the low-pulsation operating regime of the engine. [DOI: 10.1115/1.1473152]
Details
- Language :
- English
- ISSN :
- 07424795
- Volume :
- 126
- Issue :
- 2
- Database :
- Gale General OneFile
- Journal :
- Journal of Engineering for Gas Turbines and Power
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.119224643