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Nuclear reactor cavity floor passive heat removal system

United States Patent

9,911,514
March 6, 2018
View the Complete Patent at the US Patent & Trademark Office
A nuclear reactor includes a reactor core disposed in a reactor pressure vessel. A radiological containment contains the nuclear reactor and includes a concrete floor located underneath the nuclear reactor. An ex vessel corium retention system includes flow channels embedded in the concrete floor located underneath the nuclear reactor, an inlet in fluid communication with first ends of the flow channels, and an outlet in fluid communication with second ends of the flow channels. In some embodiments the inlet is in fluid communication with the interior of the radiological containment at a first elevation and the outlet is in fluid communication with the interior of the radiological containment at a second elevation higher than the first elevation. The radiological containment may include a reactor cavity containing a lower portion of the pressure vessel, wherein the concrete floor located underneath the nuclear reactor is the reactor cavity floor.
Edwards; Tyler A (Lynchburg, VA), Neeley; Gary W (Forest, VA), Inman; James B (Forest, VA)
BWXT mPower, Inc. (Charlotte, NC)
14/ 299,016
20150357057
June 9, 2014
This invention was made with Government support under Contract No. DE-NE0000583 awarded by the Department of Energy. The Government has certain rights in this invention.