Patent ID: 6796789
Filing Date: 2004-09-28
Classification: F23C,Y02E

Abstract:
A method to precipitate and sustain flameless combustion within an essentially oval combustion chamber of an integrated heater/burner apparatus comprising the steps of:(a) providing an essentially oval combustion chamber in communication with an air inlet, the air inlet in further communication with an air source external to said essentially oval chamber; (b) providing a fuel source within said combustion chamber, the fuel source introducing a fuel gas, the fuel gas in communication with a fuel supply and said combustion chamber; (c) introducing air to the oval combustion chamber via said air inlet; (d) initializing a heating process within said chamber to preheat the chamber's internal portion to an operational temperature generally ranging between 1400Â° F. and 2100Â° F.; (e) precipitating the re-circulation of flue gas within said chamber as a consequence of two steps (c) and (d); (f) metering and delivering fuel gas to said combustion chamber; (g) inerting fuel gas with said recirculating flue gas; (h) continuing to meter and heat air, inerted fuel gas and recirculated flue gas until said air, recirculated fuel and flue gas diffuse into a molecular composite and reach or exceed the auto ignition temperature said composition; and (i) sustaining flameless combustion by maintaining a combustion chamber operational temperature of generally between 1400Â° F. and 2100Â° F. while simultaneously providing an exiting means by which internal pressure of the combustion chamber may be equalized in consideration of purposely introduced fuel gas and combustible air.