Analysis of effect of human interactions on HTGR safety and reliability. Final report
This study was undertaken to provide a numerical measure of the impact of operator actions on the shutdown of an HTGR plant similar to Fort St. Vrain during specified accident sequences. The study also provides a similar kind of measure for the impact of current procedures and practices during normal surveillance and calibration testing on the Fort St. Vrain Plant Protection System. It is concluded that the Fort St. Vrain shutdown and Plant Protection Systems appear to be relatively safe from any significant effects due to operator error during a high stress situation. However, the amount of public exposure during any credible accident can be significantly reduced by modifying administrative procedures and/or by training the operators to develop proper reflex actions during emergencies. It is concluded that operator errors during low stress surveillance and calibration exercises contribute negligibly to overall PPS failures at Fort St. Vrain as long as specified recovery factors are able to operate.
- Research Organization:
- Kaman Sciences Corp., Colorado Springs, Colo. (USA)
- OSTI ID:
- 7249398
- Report Number(s):
- KSC-1037-2
- Country of Publication:
- United States
- Language:
- English
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22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ENRICHED URANIUM REACTORS
ERRORS
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
HELIUM COOLED REACTORS
HTGR TYPE REACTORS
PERSONNEL
POWER REACTORS
REACTOR PROTECTION SYSTEMS
REACTOR SAFETY
REACTORS
SAFETY
VRAIN REACTOR