Testing of a system for measuring the nonuniformity of energy release in a BBER-440 core according to indications of detectors located outside the reactor

• Published in: Atomic energy (New York, N.Y.) N.Y.), 1998-03, Vol.84 (3), p.148-154
• Main Authors: KAMYSHAN, A. N, KOSTITSIN, A. R, URUCHEV, V, KHARALAMPIEVA, T, LUZHNOV, A. M, MOROZOV, V. V, ZHERNOV, V. S, SOKOLOV, I. V, KAZAKOV, V. A, KRYAKVIN, L. V, BEKRIEV, D, KAMENOV, K
• Format: Article
• Language: English
• Subjects: Algorithms; Calibration; Channels; Computer networks; Computer programs; Instrumentation; Measurement methods; Neutrons; Nonuniformity; Nuclear power generation; Nuclear power plants; Software
• ISSN: 1063-4258; 1573-8205
• DOI: 10.1007/BF02412695

As a result of this work, the structure and composition of the technical means of an extrareactor system for measuring the nonuniformity of energy release in a BBER-440 core were determined. They make it possible to solve the problem posed with maximum utilization of standard systems without affecting the latter. Analysis of the measurement error in the average axial distribution of enerry release showed that the system for extrareactor measurement of the nonuniformity of energy release satisfies the technical requirements for it. It can be calibrated not only according to data from neutron-measurement channels but also according to neutron-physical calculations simulating the calibration tests. The first sample of an extrareactor measurement system was installed in the third power-generating unit of the "Kozlodui" nuclear power plant. The results of testing the system during the 13th run confirmed that the measurement method, the algorithm, and the software are successful and also that the instrumentation is reliable. A similar system has also been installed in the second power-generating unit of the "Kozlodui" nuclear power plant, and the system will be installed in the first and fourth power-generating units. The modified systems software made it possible to include the system in the general computer network and to output the measurement results on a monitor.[PUBLICATION ABSTRACT]