ORAM-SENTINEL development at Calvert Cliffs. Final report

Technical Report · Fri May 01 04:00:00 EDT 1998

OSTI ID:354917

Baltimore Gas and Electric, in cooperation with EPRI, has installed ORAM-SENTINEL{trademark} software at Calvert Cliffs Nuclear Power Plant. This software incorporates models of the safety and support systems that are used to display the defense-in-depth present in the plant and a quantitative assessment of plant risks during proposed on-line maintenance. During 1997, Baltimore Gas and Electric personnel became familiar with the formal computerized Safety Assessment process associated with on-line and outage maintenance. The report describes the motivation for and the development of ORAM-SENTINEL software. It describes generation of Safety Function Assessment Trees and Plant Transient Assessment Trees and their use in evaluating the level of defense-in-depth of key plant safety functions and plant susceptibility to critical transient events. To show decreasing safety conditions, their results are displayed by color indicators ranging from green through yellow and orange to red. The report describes use of the Calvert Probabilistic Safety Assessment with ORAM-SENTINEL code to calculate an instantaneous core damage frequency and the criteria by which this frequency is translated to a color indicator.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); ERIN Engineering and Research, Inc. (United States)
• Sponsoring Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 354917
• Report Number(s): EPRI-TR--110473
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
99 GENERAL AND MISCELLANEOUS
CALVERT CLIFFS-1 REACTOR
CALVERT CLIFFS-2 REACTOR
O CODES
REACTOR MAINTENANCE
REACTOR SAFETY
RISK ASSESSMENT
SAFETY ANALYSIS
SCHEDULES