NUCLEAR REACTOR CAVITY FLOOR PASSIVE HEAT REMOVAL SYSTEM

摘要

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.

主权项

1. A nuclear island comprising:
a nuclear reactor including a reactor core comprising fissile material disposed in a reactor pressure vessel; a radiological containment containing the nuclear reactor, the radiological containment including a concrete floor located underneath the nuclear reactor; and an ex vessel corium retention system including 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.