Accident-sequence evaluation for IREP
Conference
·
OSTI ID:6098958
The inputs to the accident sequence evaluation include the system fault tree models and the event tree models. Each event tree sequence defines a unique accident sequence. The qualitative analysis of an accident sequence is concerned with determining the minimal cut sets of the accident sequence. The quantitative analysis deals with computing a probability estimate for the minimal cut sets of the accident sequence and a frequency for the accident sequence. Each accident sequence is modeled by an event tree sequence which consists of an initiating event and the subsequent failure or success of one or more of the front line safety systems. The system failure of success states represent the status of the safety systems at the time the initiating event occurs. The failure or success of a safety system is modeled by a fault tree or its complement. The fault tree primary events have associated unavailabilities or failure probabilities.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6098958
- Report Number(s):
- SAND-81-1004C; CONF-810905-15; ON: DE81030364
- Country of Publication:
- United States
- Language:
- English
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