Method and apparatus for monitoring the burning efficiency of a

Details Method and apparatus for monitoring the burning efficiency of a Method and apparatus for monitoring the burning efficiency of a

1981-12-07

1984-03-06

Scott, Samuel

Combustion

Process of combustion or burner operation

Controlling or proportioning feed

431 79, 250339, F23N 102

Patent

active

044351496

ABSTRACT:
A furnace burner flame monitoring method and apparatus are provided for controlling the burner fuel mixture in order to operate a furnace at maximum burning efficiency. A radiometer having an infrared detector views the flame and detects infrared radiation emitted from the flame. A filter wheel is interposed between the infrared detector and the flame for transmitting at least three different, discrete, infrared radiation bands from the flame to the detector with the detector thereby generating at least three signals in response to radiation received from the three infrared radiation bands. A control parameter is derived using a ratio of at least two of the signals from the infrared radiation bands which are compensated for flame length using a third of the signals generated by the infrared detector. The control parameter may then be utilized for controlling the fuel/air mixture which is burned for thus monitoring and maintaining the furnace at maximum efficiency.

REFERENCES:
patent: 4179606 (1979-12-01), Nakauchi et al.

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