ORAM-SENTINEL{trademark} demonstration at Sequoyah. Final report

Technical Report · Wed Jul 01 04:00:00 EDT 1998

OSTI ID:354981

Wilson, D; Fong, S; Thomas, M ^[1]

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1. ERIN Engineering and Research, Inc., Walnut Creek, CA (United States)

Application of EPRI`s ORAM-SENTINEL{trademark} software at the Sequoyah Nuclear Plant has provided the Tennessee Valley Authority (TVA) with an effective tool for configuration safety management during at-power operations. Configuration safety is managed using a blended approach, including both deterministic (engineering-based) and probabilistic (risk-based) methods. Plant configuration information, in the form of equipment removed from service and high-risk evolutions, serves as input to ORAM-SENTINEL. Configuration information is processed through ORAM-SENTINEL using Sequoyah-specific models. The application returns to the user color-based representations of safety, risk profiles, and text-based configuration guidance. This project involved integration of ORAM-SENTINEL into the work planning process, development of deterministic configuration guidance, development of the risk-based configuration guidance, development of Maintenance Rule performance criteria assessment, implementation support, and technology transfer. The project included a program enhancement to ORAM-SENTINEL code that globally replaces variable names in the variables expression database. The program enhancement enabled models for TVA`s plants to be developed in a more cost-effective manner. The program enhancement is a standard feature in ORAM-SENTINEL Version 3.0.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); ERIN Engineering and Research Inc., Walnut Creek, CA (United States)
• Sponsoring Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 354981
• Report Number(s): EPRI-TR--110771
• 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
O CODES
REACTOR MAINTENANCE
REACTOR OPERATION
REACTOR SHUTDOWN
RELIABILITY
RISK ASSESSMENT
SAFETY ANALYSIS
SEQUOYAH-1 REACTOR
SEQUOYAH-2 REACTOR