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Method and apparatus for regulating the combustion in a furnace

  • US 4,330,260 A
  • Filed: 01/31/1979
  • Issued: 05/18/1982
  • Est. Priority Date: 01/31/1979
  • Status: Expired due to Term
First Claim
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1. A method of controlling combustion in a furnace of a furnace system in which the rate at which fuel is supplied to the furnace is varied in accordance with the load being experienced by the furnace and the operation of a fan is regulated to vary the flow rate of combustion air supplied to the furnace, comprising the steps of:

  • measuring the rate at which fuel is supplied to the furnace,providing a control command on the basis of the fuel supply rate to the furnace and air and gas flow characteristics of the furnace system, andregulating operation of the fan to thereby control combustion air flow in accordance with the value of said control command.

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