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Sidewall Horn Igniter Firing System - 21977 #/%. 3)$%7!,,

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$ P Tubes, and unburned fuel dripping from the horn.COEN’s system easily overcomes these problems by modifying the atomization process to produce an optimum spray pattern and fuel oil droplet size distribu- tion to match the aerodynamics of the igniter horn. This atomization technique is derived from COEN’s patented

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COEN’s Sidewall Horn Igniter System is a low-cost performance upgrade to the original oil-fired igniter equipment on tangential-fired boilers. Total replacement of igniter components is typically not required. It is the reliable and practical solution for overcoming problems such as high opacity, soot and carbon build-up in the horn, fouled flame rods, plugged Smokeless Igniter Technology . The result is a clean flame that burns all of the fuel and does not produce soot or coke. Additional benefits include improved reliability of the existing flame detection and spark equipment, reduced opacity, and elimination of unburned fuel carryover into the backpass of the furnace, air heater, ESP or baghouse.COEN’s Sidewall Horn Igniters can be applied as either single gun or dual gun systems, with heat input ranging from

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4-12 MMBtu/hr . Depending on the heat input, the COEN Sidewall Igniter can be classified as either an NFPA Class I or Class II Igniter, rated for continuous operation, or Class III. PRIMARY COMPONENTS • Igniter Gun and Atomizer Assembly (with Pressure Control) • Sidewall Igniter Control Cabinet • High Energy Electric Ignition System • Flame Detectors (COEN or Flame Rods)

COEN HAS UPGRADED MORE THAN 1,000 SIDEWALL IGNITERS AT POWER PLANTS WITH A CUMULATIVE GENERATING CAPACITY IN EXCESS OF 15,000-MWE.