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Title: Pressure suppression system

Patent ·
OSTI ID:869534

A pressure suppression system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and an enclosed gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel. The GDCS pool includes a plenum for receiving through an inlet the non-condensable gas carried with steam from the drywell following a loss-of-coolant accident (LOCA). A condenser is disposed in the GDCS plenum for condensing the steam channeled therein and to trap the non-condensable gas therein. A method of operation includes draining the GDCS pool following the LOCA and channeling steam released into the drywell following the LOCA into the GDCS plenum for cooling along with the non-condensable gas carried therewith for trapping the gas therein.

Research Organization:
General Electric Co., Boston, MA (United States)
DOE Contract Number:
AC03-90SF18494
Assignee:
General Electric Company (San Jose, CA)
Patent Number(s):
US 5353318
OSTI ID:
869534
Country of Publication:
United States
Language:
English