Effect of shape reactivity on the rod-ejection accident

Conference · Wed Sep 01 00:00:00 EDT 1982

OSTI ID:6546161

Neogy, P; Carew, J F

The shape reactivity has a significant influence on the rod ejection accident. After the control rod is fully ejected from the core, the neutron flux undergoes a large reduction at the ejected rod location. The corresponding effect on the control reactivity is comparable in magnitude to the Doppler reactivity, and makes a significant contribution to limiting the power excursion during the transient. The neglect of this effect in point kinetics and space time synthesis analyses of the rod ejection accident may account in part for the large degree of conservatism usually associated with these analyses.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6546161
• Report Number(s): BNL-NUREG-32105; CONF-830304-8; ON: DE83003609
• Resource Relation: Conference: American Nuclear Society topical conference on computational methods, Salt Lake City, UT, USA, 28 Mar 1983
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
PWR TYPE REACTORS
ROD EJECTION ACCIDENTS
POWER
REACTIVITY
REACTOR CORES
TIME DEPENDENCE
ACCIDENTS
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled