Effect of power oscillations on suppression pool heating during ATWS (Anticipated Transients Without Scram) conditions

Conference · Mon Jan 01 00:00:00 EST 1990

OSTI ID:6346319

Wulff, W; Cheng, H S; Mallen, A N

Nine selected Anticipated Transients Without Scram (ATWS) have been simulated on the BNL Engineering Plant Analyzer (EPA), to determine how power and flow oscillations, similar to those that did or could have occurred at the LaSalle-2 boiling Water Reactor (BWR), could affect the rate of Pressure Suppression Pool heating. It has been determined that the pool can reach its temperature limit of 80{degree}C in 4.3 min. after Turbine Trip without Bypass, if the feedwater pumps are not tripped. The pool will not reach its limit, if Boron is injected, even when oscillations are encountered. Simultaneous turbine and recirculation pump trips, introduced under stable conditions, can lead to instability. 2 refs., 17 figs., 9 tabs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: USNRC
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6346319
• Report Number(s): BNL-NUREG-45275; CONF-9010224-3; ON: DE91004010; TRN: 90-037654
• Resource Relation: Conference: International workshop on boiling water reactor stability, Upton, NY (USA), 17-19 Oct 1990
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
LA SALLE COUNTY-2 REACTOR
ATWS
PRESSURE SUPPRESSION
BORON ADDITIONS
COMPUTERIZED SIMULATION
FEEDWATER
HEATING
OSCILLATIONS
PUMPS
REACTOR SAFETY
STABILITY
VALVES
ACCIDENTS
ALLOYS
BORON ALLOYS
BWR TYPE REACTORS
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
POWER REACTORS
REACTOR ACCIDENTS
REACTORS
SAFETY
SIMULATION
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
210100 - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
990200 - Mathematics & Computers