Systems and methods for detection and control of blowout...

Details Systems and methods for detection and control of blowout... Systems and methods for detection and control of blowout...

2003-10-30

2008-11-25

Freay, Charles G (Department: 3746)

Power plants

Combustion products used as motive fluid

With safety device

C060S039281, C701S100000

Reexamination Certificate

active

07454892

ABSTRACT:
The present invention comprises methods for detecting and controlling flame blowout in combustors. The blowout precursor detection system comprises a combustor, a blowout precursor detection unit, a pressure measuring device and/or an optical measuring device. The methods of the present invention comprise receiving optical data measured by an optical measuring device, performing one or a combination of raw data analysis, spectral analysis, statistical analysis, and wavelet analysis on received optical data, and determining the existence of a blowout precursor based on such analyses. The present invention further comprises closed-loop control methods for controlling a combustor to prevent blowout.

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Muruganandam et al, “Optical and Acoustic Sensing of Lean Blowout Precursors”, AIAA 2002-3732, 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Jul. 7-10, 2002.

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