Published 1987 | Version v1
Report Restricted

Reactor noise diagnostics based on multivariate autoregressive modeling: Application to LOFT [Loss-of-Fluid-Test] reactor process noise

Creators

Description

Multivariate noise analysis of power reactor operating signals is useful for plant diagnostics, for isolating process and sensor anomalies, and for automated plant monitoring. In order to develop a reliable procedure, the previously established techniques for empirical modeling of fluctuation signals in power reactors have been improved. Application of the complete algorithm to operational data from the Loss-of-Fluid-Test (LOFT) Reactor showed that earlier conjectures (based on physical modeling) regarding the perturbation sources in a Pressurized Water Reactor (PWR) affecting coolant temperature and neutron power fluctuations can be systematically explained. This advanced methodology has important implication regarding plant diagnostics, and system or sensor anomaly isolation. 6 refs., 24 figs

Availability note (English)

Available from NTIS, PC A03; 3 as DE87011871.

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Publishing Information

Imprint Pagination
38 p.
Report number
DOE/NE/37959--5

Conference

Title
4. conference on utility experience in reactor noise analysis.
Dates
12-14 May 1987.
Place
Hartford, CT (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
19018997
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
EXPERIMENTAL DATA; LOFT REACTOR; MATHEMATICAL MODELS; PWR TYPE REACTORS; REACTOR INSTRUMENTATION; REACTOR NOISE; STATISTICS
Descriptors DEC
DATA; ENRICHED URANIUM REACTORS; INFORMATION; MATHEMATICS; NUMERICAL DATA; POWER REACTORS; REACTORS; RESEARCH AND TEST REACTORS; TANK TYPE REACTORS; TEST FACILITIES; TEST REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
Paper copy only, copy does not permit microfiche production.
Secondary number(s)
CONF-870598--2.