Update of BWR (boiling water reactor) owner's group stability initiatives

Conference · Wed Nov 01 04:00:00 EST 1989 · Transactions of the American Nuclear Society; (United States)

OSTI ID:5373641

Rausch, T J ^[1]

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1. Commonwealth Edison Company, Chicago, IL (USA)

On March 9, 1988, a dual recirculation pump trip occurred at LaSalle County Station Unit 2, which ultimately resulted in thermal-hydraulic neutron flux oscillations. Because cycle-specific calculations had led to the belief that such oscillations were not likely, the LaSalle operators were not fully prepared to quickly respond to the event. As a result, the oscillations were automatically terminated by a high-flux scram. Although no safety limits were approached and no damage to the fuel or plant occurred or was expected, several concerns related to the understanding of instability phenomena, the adequacy of existing nuclear instrumentation to detect and suppress oscillations, and the reliability of predictive calculations were raised. This paper discussed General Electric Company boiling water reactor owner's group (BWROG) activities that address these concerns, including BWROG efforts to identify the need for and development of a long-term stability solution.

• OSTI ID: 5373641
• Report Number(s): CONF-891103--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 60
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100 -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ADMINISTRATIVE PROCEDURES
BWR TYPE REACTORS
DESIGN
ELECTRIC UTILITIES
ENERGY TRANSFER
FLUID MECHANICS
HEAT TRANSFER
HYDRAULICS
KINETICS
LA SALLE COUNTY-2 REACTOR
MECHANICS
NATIONAL ORGANIZATIONS
NEUTRON FLUX
OPERATION
OSCILLATIONS
PERSONNEL
POWER REACTORS
PUBLIC UTILITIES
RADIATION FLUX
REACTOR COMPONENTS
REACTOR CORES
REACTOR INSTRUMENTATION
REACTOR KINETICS
REACTOR OPERATION
REACTOR OPERATORS
REACTOR SAFETY
REACTOR SHUTDOWN
REACTOR STABILITY
REACTORS
REGULATIONS
SAFETY
SCRAM
SHUTDOWN
STABILITY
TRAINING
US NRC
US ORGANIZATIONS
WATER COOLED REACTORS
WATER MODERATED REACTORS