It has become imperative that purchased fuels (primarily oil, natural gas and coal) be burned in boilers at peak efficiency to reduce waste and costs. At the same time, lower-cost auxiliary by-product fuels produced during the actual process, such as refinery gas and residual sludge, must also be burned as efficiently as possible to minimize use of purchased fuels. Combustion control for handling these multiple fuels must take into consideration the variable heating value of the by-product fuels, the intermittent availability of by-product fuel flow, the need to burn all this fuel as it becomes available, rationing the various fuels, base loading of fuels into the combustion system, and the need to swing one fuel source with respect to another due to such factors as changing process requirements or shortages of certain types of fuels. The control must also be capable of mixing the fuel introduced into the furnace with the proper amount of combustion air at each burner. And finally, pollution must be minimzed and a means provided to detect it when it does occur. This article outlines some basic combustion control methods for multiple fuels, fired singly or in combination, that will maximize available heat energy.

  • Corporate Authors:

    mpany, Incorporated

    Chilton Way
    Radnor, PA  United States  19089
  • Authors:
    • Keller, R T
  • Publication Date: 1976-6

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Filing Info

  • Accession Number: 00157725
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 15 1977 12:00AM