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Title: Pressure suppression containment system

A pressure suppression containment 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 a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel. The wetwell pool includes a plenum for receiving the non-condensable gas carried with steam from the drywell following a loss-of coolant-accident (LOCA). The wetwell plenum is vented to a plenum above the GDCS pool following the LOCA for suppressing pressure rise within the containment vessel. A method of operation includes channeling steam released into the drywell following the LOCA into the wetwell pool for cooling along with the non-condensable gas carried therewith. The GDCS pool is then drained by gravity, and the wetwell plenum is vented into the GDCS plenum for channeling the non-condensable gas thereto.
Authors:
 [1] ;  [1]
  1. (San Jose, CA)
Publication Date:
OSTI Identifier:
869195
Report Number(s):
US 5295168
DOE Contract Number:
AC03-90SF18494
Resource Type:
Patent
Research Org:
General Electric Company (San Jose, CA)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
pressure; suppression; containment; pressure; suppression; containment; containment; vessel; surrounding; reactor; pressure; vessel; defining; drywell; therein; containing; non-condensable; gas; enclosed; wetwell; pool; disposed; inside; containment; vessel; gravity; driven; cooling; gdcs; pool; disposed; wetwell; pool; containment; vessel; wetwell; pool; plenum; receiving; non-condensable; gas; carried; steam; drywell; following; loss-of; coolant-accident; loca; wetwell; plenum; vented; plenum; gdcs; pool; following; loca; suppressing; pressure; rise; containment; vessel; method; operation; channeling; steam; released; drywell; following; loca; wetwell; pool; cooling; non-condensable; gas; carried; therewith; gdcs; pool; drained; gravity; wetwell; plenum; vented; gdcs; plenum; channeling; non-condensable; gas; thereto; gdcs pool; gdcs pool; pressure suppression; pressure suppression; wetwell pool; wetwell pool; wetwell pool; wetwell pool; reactor pressure; containment vessel; containment vessel; containment vessel; containment vessel; pressure vessel; disposed inside; non-condensable gas; non-condensable gas; non-condensable gas; non-condensable gas; therein containing; suppression containment; suppression containment; steam released; vessel surrounding; gravity driven; carried therewith; enclosed wetwell; driven cooling; drywell therein /376/