Passive containment cooling system with drywell pressure regulation for boiling water reactor
Abstract
A boiling water reactor is described 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. 4 figures.
- Inventors:
- Issue Date:
- Research Org.:
- General Electric Co., Boston, MA (United States)
- OSTI Identifier:
- 6888311
- Patent Number(s):
- 5377243
- Application Number:
- PPN: US 8-138677
- Assignee:
- General Electric Company, San Jose, CA (United States)
- DOE Contract Number:
- AC03-90SF18494
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 18 Oct 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BWR TYPE REACTORS; CONTAINMENT SPRAY SYSTEMS; DESIGN; LOSS OF COOLANT; PRESSURE CONTROL; PRESSURE REGULATORS; ACCIDENTS; CONTAINMENT; CONTAINMENT SYSTEMS; CONTROL; CONTROL EQUIPMENT; ENGINEERED SAFETY SYSTEMS; ENRICHED URANIUM REACTORS; EQUIPMENT; POWER REACTORS; REACTOR ACCIDENTS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; 220900* - Nuclear Reactor Technology- Reactor Safety; 210100 - Power Reactors, Nonbreeding, Light-Water Moderated, Boiling Water Cooled
Citation Formats
Hill, P R. Passive containment cooling system with drywell pressure regulation for boiling water reactor. United States: N. p., 1994.
Web.
Hill, P R. Passive containment cooling system with drywell pressure regulation for boiling water reactor. United States.
Hill, P R. Tue .
"Passive containment cooling system with drywell pressure regulation for boiling water reactor". United States.
@article{osti_6888311,
title = {Passive containment cooling system with drywell pressure regulation for boiling water reactor},
author = {Hill, P R},
abstractNote = {A boiling water reactor is described 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. 4 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 27 00:00:00 EST 1994},
month = {Tue Dec 27 00:00:00 EST 1994}
}
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