This paper describes results from an experimental demonstration of combustion instability
suppression using a closed-loop control system. Experiments were performed on a 15 kW …

A study has been performed to evaluate the effectiveness of a closed-loop control system to
suppress thermo-acoustic combustion instabilities. The pulsewidth modulation technique …

A closed-loop controller to suppress thermoacoustic combustion instabilities in liquid-fueled
systems is described. The controller supplies unsteady heat release pulses which are out-of …

EAN-burning, low emission combustors are being investigated for aircraft gas turbine
engines. Lean combustion is shown to be advantageous for reducing NOx emissions and …

Experiments evaluating the performance of a closed-loop combustion stabilization algorithm
show that the method can reduce the magnitude of pressure oscillations in a liquid-fueled …

Unstable thermoacoustic modes were investigated and controlled in an experimental low-
emission swirl stabilized combustor, in which the acoustic boundary conditions were …

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 …

A dual-loop feedback control system was devised to suppress bimodal instabilities in a
dump combustor. Two types of instabilities were tested: one involving two anharmonic …

A low-frequency combustion instability has been successfully controlled on a laboratory rig
with significant mean flow and about 250 kW of mean heat released. The control was …

CFD-based combustion dynamics modeling is used to study the effect of fuel injection
location and fuel flow modulation on combustion instability in lean, premixed combustors …