BWR Hybrid Power Shape Monitoring System. Volume 4. Software documentation

Technical Report · Thu Sep 01 04:00:00 EDT 1983

OSTI ID:5349221

Hsu, F; Yang, C; Lin, C; Blumenberg, J; Hsu, M; Frogner, B

The Power Shape Monitoring System (PSMS) is a computer system for monitoring and prediction of BWR reactor cores. It can be used by the site nuclear engineers as well as the core follow engineers of the downtown office. The PSMS was installed at Oyster Creek in 1978 for testing and it is now used as their core monitoring system. In addition, the PSMS is also the starting point for a recently initiated effort of standardizing reactor core monitoring systems. The PSMS uses a 3D nodal code (NODE-B/THERM-B) to estimate the core power distribution. It has been demonstrated that adaptation of this code to partially fit the TIP and LPRM readings followed by a statistical characterization of the remaining errors results in better accuracy and improved sensitivity for anomaly detection compared to an approach that is entirely dependent upon the detector readings. The approach has been carefully benchmarked to TIP data from three plants and five fuel cycles and gamma scan from two of these plants were used to validate the TIP analysis.

• Research Organization: Systems Control, Inc., Palo Alto, CA (USA)
• OSTI ID: 5349221
• Report Number(s): EPRI-NP-3195-CCM-Vol.4; ON: DE84920045
• Country of Publication: United States
• Language: English

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