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RADIANT BOILER FOR PRESSURIZED OXY-COMBUSTION AND METHOD OF RADIANT TRAPPING TO CONTROL HEAT FLUX IN HIGH TEMPERATURE PARTICLE-LADEN FLOWS AT ELEVATED PRESSURE

United States Patent Application

20170363284
A1
View the Complete Application at the US Patent & Trademark Office
A boiler has a shell surrounding a vertical centerline. The shell defines an inner surface having an inner diameter and an inner length extending between an upper upstream end and a lower downstream end. The inner surface defines a hollow interior, the boiler having a pre-combustion zone, a combustion zone downstream from the pre-combustion zone, and a post-combustion zone downstream from the combustion zone. The shell is tapered outward along its length in at least a portion of the combustion zone. An oxidizer inlet is in fluid communication with the pre-combustion zone, and a fuel nozzle introduces fuel into the combustion zone. A tube assembly is mounted in the hollow interior of the shell for transferring heat to fluid flowing through the tube assembly. A flue duct is in fluid communication with the post-combustion zone for transporting flue gases from the hollow interior.
Axelbaum, Richard (St. Louis, MO), Xia, Fei (St. Louis, MO), Kumfer, Benjamin (St. Louis, MO)
15/ 541,229
December 30, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT [0001] This invention was made with government support under grant no. DE-FE0009702 awarded by the Department of Energy. The government may have certain rights in the invention.