Method and apparatus for characterizing a combustion flame

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor

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431 75, 431 12, 431 76, 60 3903, 340578, F23N 508

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active

060711140

ABSTRACT:
Characteristics of a flame within a turbine or burner are determined based upon ultraviolet, visible, and infrared measurements of the flame. The measurements include the amplitude of frequency bands that are indicative of an efficient combustion process, such as those that increase when the flame temperature increases. The measurements also include the amplitude of frequency bands that are indicative of an inefficient combustion process, such as those that do not vary, increase a relatively small amount, or decrease when the flame temperature increases. The temperature of the flame may therefore be determined accurately, to facilitate efficient operation of the turbine or burner, while minimizing polluting emissions.

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