A design for thermo-acoustic stability (DeTAS) procedure is presented that aims at selecting
the most stable burner geometry for a given combustor. It is based on the premise that a …

A design for thermo-acoustic stability (DeTAS) procedure is presented, that aims at selecting
a most stable burner geometry for a given combustor. It is based on the premise that a …

The main origin of combustion instability in modern gas turbines is considered to be related
to the interaction between acoustic waves and flame perturbations. An important role is …

Modern gas turbines equipped with lean premixed dry low emission combustion systems
suffer the problem of thermoacoustic combustion instability. The acoustic characteristics of …

This work is based on the study of the thermoacoustic combustion instability. A new
methodology to investigate this kind of instability in the gas turbine combustion chamber is …

A three-dimensional finite element code is used for the eigenvalue analysis of the
thermoacoustic combustion instabilities modeled through the Helmholtz equation. A full …

This paper concerns the acoustic analysis of self–sustained thermoacoustic pressure
oscillations that occur in a test rig equipped with full scale lean premixed burner. The …

The operating range of heavy duty gas turbines that feature lean premixed combustion to
achieve low NO* emissions is limited by thermoacoustic oscillations. To extend the …

A low order acoustic network model is used to examine the stability of an annular combustor
for different operating points. The results obtained by this approach are compared against …

Gas turbines offer a high operational flexibility and a good turn down ratio to meet future
requirements of power production. In this context, stable operation over a wide range and for …