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Devices and methods for managing noncondensable gasses in nuclear power plants

United States Patent

November 15, 2016
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Systems passively eliminate noncondensable gasses from facilities susceptible to damage from combustion of built-up noncondensable gasses, such as H2 and O2 in nuclear power plants, without the need for external power and/or moving parts. Systems include catalyst plates installed in a lower header of the Passive Containment Cooling System (PCCS) condenser, a catalyst packing member, and/or a catalyst coating on an interior surface of a condensation tube of the PCCS condenser or an annular outlet of the PCCS condenser. Structures may have surfaces or hydrophobic elements that inhibit water formation and promote contact with the noncondensable gas. Noncondensable gasses in a nuclear power plant are eliminated by installing and using the systems individually or in combination. An operating pressure of the PCCS condenser may be increased to facilitate recombination of noncondensable gasses therein.
Marquino; Wayne (Wilmington, NC), Moen; Stephan C. (Wilmington, NC), Wachowiak; Richard M. (Wilmington, NC), Gels; John L. (Wilmington, NC), Diaz-Quiroz; Jesus (Wilmington, NC), Burns, Jr.; John C. (Wilmington, NC)
14/ 543,286
November 17, 2014
GOVERNMENT SUPPORT This invention was made with Government support under contract number DE-FC07-07ID14778, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.