Described are sub-scale tests that successfully demonstrate active feedback control as a
means of suppressing damaging combustion oscillations in natural-gas-fueled, lean-premix …

Described are sub-scale tests that successfully demonstrate active feedback control as a
means of suppressing damaging combustion oscillations in natural-gas-fueled, lean-premix …

This paper presents the results of an investigation of active control of combustion instabilities
in a natural gas, high-pressure, full-scale gas turbine combustor that was retrofitted with an …

Combustion dynamics is a prominent problem in the design and operation of low-emission
gas turbine engines. Even modest changes in fuel composition or operating conditions can …

The present paper describes an active control system consisting of a fast-acting actuator
valve, coupled with a control algorithm capable of adaptive phase and amplitude control for …

A number of recent articles have demonstrated the use of active control to mitigate the
effects of combustion instability in afterburner and dump combustor applications. In these …

The primary objective of this effort was to demonstrate active control of combustion
instabilities in a direct-injection gas turbine combustor that accurately simulates engine …

This paper describes the application of active, open loop, control in effective damping of
severe combustion instabilities in a high pressure (ie, around 520 psi) gas turbine …

This paper describes the application of active, open loop, control in effective damping of
severe (ie, peak to peak pressure amplitudes of up to 35 psi relative to a mean combustor …

Controlling combustion instabilities by means of open-loop forcing at non-resonant
frequencies is attractive because neither a dynamic sensor signal nor a signal processor is …