Mitigation of steam generator tube rupture in a pressurized water reactor with passive safety systems
Patent
·
OSTI ID:869282
- Export, PA
- Penn Hills, PA
- Murrysville Boro, PA
The effects of steam generator tube ruptures in a pressurized water reactor are mitigated by reducing the pressure in the primary loop by diverting reactor coolant through the heat exchanger of a passive heat removal system immersed in the in containment refueling water storage tank in response to a high feed water level in the steam generator. Reactor coolant inventory is maintained by also in response to high steam generator level introducing coolant into the primary loop from core make-up tanks at the pressure in the reactor coolant system pressurizer. The high steam generator level is also used to isolate the start-up feed water system and the chemical and volume control system to prevent flooding into the steam header. 2 figures.
- Research Organization:
- Westinghouse Electric Corp
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC03-90SF18495
- Assignee:
- Westinghouse Electric Corp. (Pittsburgh, PA)
- Patent Number(s):
- US 5309487
- OSTI ID:
- 869282
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/376/
containment
coolant
diverting
effects
exchanger
feed
feed water
generator
generator tube
heat
heat exchange
heat exchanger
heat removal
immersed
level
loop
mitigated
mitigation
passive
passive heat
passive safety
pressure
pressurized
pressurized water
primary
primary loop
reactor
reactor coolant
reducing
refueling
refueling water
removal
response
rupture
ruptures
safety
safety systems
steam
steam generator
storage
storage tank
systems
tank
tube
tube rupture
water
water level
water reactor
water storage
containment
coolant
diverting
effects
exchanger
feed
feed water
generator
generator tube
heat
heat exchange
heat exchanger
heat removal
immersed
level
loop
mitigated
mitigation
passive
passive heat
passive safety
pressure
pressurized
pressurized water
primary
primary loop
reactor
reactor coolant
reducing
refueling
refueling water
removal
response
rupture
ruptures
safety
safety systems
steam
steam generator
storage
storage tank
systems
tank
tube
tube rupture
water
water level
water reactor
water storage