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Title: Pressure suppression system

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.
Authors:
 [1]
  1. (San Jose, CA)
Publication Date:
OSTI Identifier:
869534
Report Number(s):
US 5353318
DOE Contract Number:
AC03-90SF18494
Resource Type:
Patent
Research Org:
General Electric Co
Country of Publication:
United States
Language:
English
Subject:
pressure; suppression; pressure; suppression; containment; vessel; surrounding; reactor; pressure; vessel; defining; drywell; therein; containing; non-condensable; gas; enclosed; wetwell; pool; disposed; inside; containment; vessel; enclosed; gravity; driven; cooling; gdcs; pool; disposed; wetwell; pool; containment; vessel; gdcs; pool; plenum; receiving; inlet; non-condensable; gas; carried; steam; drywell; following; loss-of-coolant; accident; loca; condenser; disposed; gdcs; plenum; condensing; steam; channeled; therein; trap; non-condensable; gas; therein; method; operation; draining; gdcs; pool; following; loca; channeling; steam; released; drywell; following; loca; gdcs; plenum; cooling; non-condensable; gas; carried; therewith; trapping; gas; therein; gdcs pool; gdcs pool; pressure suppression; pressure suppression; wetwell pool; wetwell pool; reactor pressure; containment vessel; containment vessel; containment vessel; pressure vessel; disposed inside; non-condensable gas; non-condensable gas; non-condensable gas; non-condensable gas; therein containing; steam released; gas therein; gas therein; vessel surrounding; gravity driven; carried therewith; enclosed wetwell; driven cooling; drywell therein; coolant accident /376/