Design of BWR instability suppression system

Andrej Kubarev, Tomasz Kozlowski, Sean S. Roshan, Truc Nam Dinh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper explores the concept of instability suppression system and its performance in a BWR plant. The key idea adopted from the work of Aleksakov et al. (1980) is to utilize information provided by the in-core power monitoring detectors to guide movement of control rods in a way that suppress the global, regional and local instability. In the paper, effectiveness of a simplified suppression algorithm is characterized by implementing it on a real BWR model, using the RELAP5/PARCS coupled thermal-hydraulics and neutron kinetics code. Both forced power oscillations and realistic reactor transients (feedwater temperature transients, control rod drop) were analyzed. The results suggest that, without requiring any modifications for the in-reactor diagnostics and equipment, the proposed suppression system is capable of significantly mitigating the impact of core instability events on plant performance by maintaining the core parameters within the safe operational range.

Original languageEnglish (US)
Title of host publicationInternational Conference on the Physics of Reactors 2008, PHYSOR 08
Pages2062-2068
Number of pages7
StatePublished - Dec 1 2008
Externally publishedYes
EventInternational Conference on the Physics of Reactors 2008, PHYSOR 08 - Interlaken, Switzerland
Duration: Sep 14 2008Sep 19 2008

Publication series

NameInternational Conference on the Physics of Reactors 2008, PHYSOR 08
Volume3

Other

OtherInternational Conference on the Physics of Reactors 2008, PHYSOR 08
CountrySwitzerland
CityInterlaken
Period9/14/089/19/08

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Nuclear and High Energy Physics

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  • Cite this

    Kubarev, A., Kozlowski, T., Roshan, S. S., & Dinh, T. N. (2008). Design of BWR instability suppression system. In International Conference on the Physics of Reactors 2008, PHYSOR 08 (pp. 2062-2068). (International Conference on the Physics of Reactors 2008, PHYSOR 08; Vol. 3).