Effect of shape reactivity on the rod-ejection accident
Conference
·
OSTI ID:6546161
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
- Country of Publication:
- United States
- Language:
- English
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