Title :
Sensors and actuators for combustion control
Author :
Wachsman, A. ; Park, S. ; Annaswamy, A.M. ; Ghoniem, A.F.
Author_Institution :
Dept. of Mech. Eng., Massachusetts Inst. of Technol., Cambridge, MA, USA
fDate :
June 30 2004-July 2 2004
Abstract :
This paper addresses an experimental investigation of a combustion system using a backward step configuration, with the goal of understanding combustion instability and its control. In order to carry out a systematic study of the various subcomponents of the combustion dynamics including hydrodynamics and heat-release, various sensors and actuators have been included in this setup that provide new insight into the underlying mechanisms, which are discussed in this paper. A preliminary model using proper orthogonal decomposition (POD) and a model-based controller using the adaptive posi-cast strategy are presented. The model and the control design are verified using an air-flow injector in the step combustor at Re=6300 and an equivalence ratio of 0.85 and are shown to result in a 7.5 dB pressure reduction.
Keywords :
actuators; adaptive control; combustion; control system synthesis; distributed sensors; heat systems; hydrodynamics; predictive control; actuators; adaptive control; air flow injector; backward step configuration; combustion control design; combustion dynamics; combustion system; hydrodynamics; model based controller; proper orthogonal decomposition; sensors; step combustor;
Conference_Titel :
American Control Conference, 2004. Proceedings of the 2004
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-8335-4
