Patent ID: 11859816
Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A method for suppressing thermo-acoustic instabilities in a combustor, said method comprising:
generating, by a system (100), at least one first signal corresponding to fluctuations in turbulent velocity of the combustor at every location on the plane of the combustor where the flame is stabilized;
generating, by the system (100), at least one second signal corresponding to fluctuations in acoustic pressure of the combustor at least one location of the combustor;
determining, by the system (100), a plurality of phase locked values across the combustor indicative of synchronization of the at least one first signal corresponding to turbulent velocity of the combustor and the at least one second signal corresponding to acoustic pressure of the combustor;
measuring, by the system (100), parameters indicative of a plurality of recurring behavior of fluctuations in turbulent velocity of the combustor at every location of the combustor;
determining, by the system (100), a plurality of Hurst exponent values at every location of the combustor based on the at least one first signal;
detecting, by the system (100), at least one critical region of the combustor, wherein the at least one critical region corresponds to at least one of a maximum value of the plurality of phase locked values, a maximum value of the plurality of recurring fluctuations in turbulent velocity of the combustor at every location of the combustor, and a minimum value of the plurality of Hurst exponent values; and
injecting, by the system (100), micro-jets of air at the detected critical regions to suppress thermo-acoustic instabilities.