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Method and apparatus for improved process control in combustion applications

  • US 20040191712A1
  • Filed: 04/07/2004
  • Published: 09/30/2004
  • Est. Priority Date: 06/26/2000
  • Status: Active Grant
First Claim
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1. A method for process control in a combustion application, comprising:

  • a) transmitting a frequency modulated near-infrared laser beam through off-gas produced by the combustion application to target CO and H2O;

    b) detecting the transmitted laser beam;

    c) analyzing the detected laser beam for select CO and H2O absorption lines;

    d) determining the CO concentration from the CO and H2O absorption lines;

    e) adjusting select inputs of the combustion application in response to the CO concentration.

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