EVALUATION OF THE MODERATOR TEMPERATURE-COEFFICIENT OF REACTIVITY IN A PWR BY MEANS OF NOISE-ANALYSIS

Authors
LAGGIARD E RUNKEL J
Citation
E. Laggiard et J. Runkel, EVALUATION OF THE MODERATOR TEMPERATURE-COEFFICIENT OF REACTIVITY IN A PWR BY MEANS OF NOISE-ANALYSIS, Annals of nuclear energy, 24(5), 1997, pp. 411-417
Citations number
12
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Annals of nuclear energy → ACNP
ISSN journal
03064549
Volume
24
Issue
5
Year of publication
1997
Pages
411 - 417
Database
ISI
SICI code
0306-4549(1997)24:5<411:EOTMTO>2.0.ZU;2-7
Abstract
The neutron and temperature fluctuations of sensors belonging to one s tring in a 1300 Mw pressurized water reactor (PWR) were selected for e valuating the magnitude of the moderator temperature coefficient of re activity (MTC). These fluctuations are less affected by subcooled boil ing. A model describing the temperature fluctuations inside and outsid e the core was developed and the bias of the temperature fluctuations due to position corrected. The resulting MTC magnitude was compared wi th the design-predicted value. Copyright (C) 1996 Elsevier Science Ltd