skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Passive containment cooling system with drywell pressure regulation for boiling water reactor

Abstract

A boiling water reactor having a regulating valve for placing the wetwell in flow communication with an intake duct of the passive containment cooling system. This subsystem can be adjusted to maintain the drywell pressure at (or slightly below or above) wetwell pressure after the initial reactor blowdown transient is over. This addition to the PCCS design has the benefit of eliminating or minimizing steam leakage from the drywell to the wetwell in the longer-term post-LOCA time period and also minimizes the temperature difference between drywell and wetwell. This in turn reduces the rate of long-term pressure buildup of the containment, thereby extending the time to reach the design pressure limit.

Inventors:
 [1]
  1. Tucson, AZ
Issue Date:
Research Org.:
General Electric Co
OSTI Identifier:
869686
Patent Number(s):
5377243
Assignee:
General Electric Company (San Jose, CA)
DOE Contract Number:  
AC03-90SF18494
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
passive; containment; cooling; drywell; pressure; regulation; boiling; water; reactor; regulating; valve; placing; wetwell; flow; communication; intake; duct; subsystem; adjusted; maintain; slightly; below; initial; blowdown; transient; addition; pccs; design; benefit; eliminating; minimizing; steam; leakage; longer-term; post-loca; time; period; minimizes; temperature; difference; reduces; rate; long-term; buildup; extending; reach; limit; temperature difference; water reactor; time period; flow communication; containment cooling; passive containment; boiling water; regulating valve; pressure buildup; /376/

Citation Formats

Hill, Paul R. Passive containment cooling system with drywell pressure regulation for boiling water reactor. United States: N. p., 1994. Web.
Hill, Paul R. Passive containment cooling system with drywell pressure regulation for boiling water reactor. United States.
Hill, Paul R. Sat . "Passive containment cooling system with drywell pressure regulation for boiling water reactor". United States. https://www.osti.gov/servlets/purl/869686.
@article{osti_869686,
title = {Passive containment cooling system with drywell pressure regulation for boiling water reactor},
author = {Hill, Paul R},
abstractNote = {A boiling water reactor having a regulating valve for placing the wetwell in flow communication with an intake duct of the passive containment cooling system. This subsystem can be adjusted to maintain the drywell pressure at (or slightly below or above) wetwell pressure after the initial reactor blowdown transient is over. This addition to the PCCS design has the benefit of eliminating or minimizing steam leakage from the drywell to the wetwell in the longer-term post-LOCA time period and also minimizes the temperature difference between drywell and wetwell. This in turn reduces the rate of long-term pressure buildup of the containment, thereby extending the time to reach the design pressure limit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Patent:

Save / Share: