Development of Method to Determine Instability Threshold with RETRAN Code

Fumimasa Araya, Masashi Hirano, Kazuo Yoshida, Kiyoshi Matsumoto, Masao Yokobayashi, Atsuo Kohsaka

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Neutron flux oscillation event occurred at LaSalle-2 (BWR5) on March 9, 1988 which arised issues such as why the event occurred and what major differences between LaSalle-2 and other BWRs were in view of the BWR stability. In order to resolve the issues, a method to determine instability threshold was developed at Japan Atomic Energy Research Institute (JAERI) by using the transient thermal-hydraulic analysis code RETRAN which was developed at Electric Power Research Institute (EPRI). The validity of the method was confirmed by parametric studies and thermal-hydraulic experiment analyses. Using the method, the instability boundary for in-phase oscillation was obtained. For out -of-phase oscillation, however, it was found that the instability boundary could not be determined in nature due to the limitation from the point reactor kinetics model.

Original languageEnglish
Pages (from-to)879-888
Number of pages10
JournalNippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan
Volume34
Issue number9
DOIs
Publication statusPublished - 1992
Externally publishedYes

Fingerprint

Hydraulics
Neutron flux
Nuclear energy
Kinetics
Experiments
Hot Temperature

Keywords

  • BWR type reactors
  • computer codes
  • in-phase oscillation
  • instability
  • oscillation modes
  • out-of-phase oscillation
  • point reactor kinetics
  • RETRAN
  • transient thermal-hydraulics

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

Cite this

Development of Method to Determine Instability Threshold with RETRAN Code. / Araya, Fumimasa; Hirano, Masashi; Yoshida, Kazuo; Matsumoto, Kiyoshi; Yokobayashi, Masao; Kohsaka, Atsuo.

In: Nippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan, Vol. 34, No. 9, 1992, p. 879-888.

Research output: Contribution to journalArticle

Araya, Fumimasa ; Hirano, Masashi ; Yoshida, Kazuo ; Matsumoto, Kiyoshi ; Yokobayashi, Masao ; Kohsaka, Atsuo. / Development of Method to Determine Instability Threshold with RETRAN Code. In: Nippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan. 1992 ; Vol. 34, No. 9. pp. 879-888.
@article{0461e107a24d4a9fb1a144ed7d04ec7c,
title = "Development of Method to Determine Instability Threshold with RETRAN Code",
abstract = "Neutron flux oscillation event occurred at LaSalle-2 (BWR5) on March 9, 1988 which arised issues such as why the event occurred and what major differences between LaSalle-2 and other BWRs were in view of the BWR stability. In order to resolve the issues, a method to determine instability threshold was developed at Japan Atomic Energy Research Institute (JAERI) by using the transient thermal-hydraulic analysis code RETRAN which was developed at Electric Power Research Institute (EPRI). The validity of the method was confirmed by parametric studies and thermal-hydraulic experiment analyses. Using the method, the instability boundary for in-phase oscillation was obtained. For out -of-phase oscillation, however, it was found that the instability boundary could not be determined in nature due to the limitation from the point reactor kinetics model.",
keywords = "BWR type reactors, computer codes, in-phase oscillation, instability, oscillation modes, out-of-phase oscillation, point reactor kinetics, RETRAN, transient thermal-hydraulics",
author = "Fumimasa Araya and Masashi Hirano and Kazuo Yoshida and Kiyoshi Matsumoto and Masao Yokobayashi and Atsuo Kohsaka",
year = "1992",
doi = "10.3327/jaesj.34.879",
language = "English",
volume = "34",
pages = "879--888",
journal = "Nippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan",
issn = "0004-7120",
publisher = "Atomic Energy Society of Japan",
number = "9",

}

TY - JOUR

T1 - Development of Method to Determine Instability Threshold with RETRAN Code

AU - Araya, Fumimasa

AU - Hirano, Masashi

AU - Yoshida, Kazuo

AU - Matsumoto, Kiyoshi

AU - Yokobayashi, Masao

AU - Kohsaka, Atsuo

PY - 1992

Y1 - 1992

N2 - Neutron flux oscillation event occurred at LaSalle-2 (BWR5) on March 9, 1988 which arised issues such as why the event occurred and what major differences between LaSalle-2 and other BWRs were in view of the BWR stability. In order to resolve the issues, a method to determine instability threshold was developed at Japan Atomic Energy Research Institute (JAERI) by using the transient thermal-hydraulic analysis code RETRAN which was developed at Electric Power Research Institute (EPRI). The validity of the method was confirmed by parametric studies and thermal-hydraulic experiment analyses. Using the method, the instability boundary for in-phase oscillation was obtained. For out -of-phase oscillation, however, it was found that the instability boundary could not be determined in nature due to the limitation from the point reactor kinetics model.

AB - Neutron flux oscillation event occurred at LaSalle-2 (BWR5) on March 9, 1988 which arised issues such as why the event occurred and what major differences between LaSalle-2 and other BWRs were in view of the BWR stability. In order to resolve the issues, a method to determine instability threshold was developed at Japan Atomic Energy Research Institute (JAERI) by using the transient thermal-hydraulic analysis code RETRAN which was developed at Electric Power Research Institute (EPRI). The validity of the method was confirmed by parametric studies and thermal-hydraulic experiment analyses. Using the method, the instability boundary for in-phase oscillation was obtained. For out -of-phase oscillation, however, it was found that the instability boundary could not be determined in nature due to the limitation from the point reactor kinetics model.

KW - BWR type reactors

KW - computer codes

KW - in-phase oscillation

KW - instability

KW - oscillation modes

KW - out-of-phase oscillation

KW - point reactor kinetics

KW - RETRAN

KW - transient thermal-hydraulics

UR - http://www.scopus.com/inward/record.url?scp=0026928027&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026928027&partnerID=8YFLogxK

U2 - 10.3327/jaesj.34.879

DO - 10.3327/jaesj.34.879

M3 - Article

AN - SCOPUS:0026928027

VL - 34

SP - 879

EP - 888

JO - Nippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan

JF - Nippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan

SN - 0004-7120

IS - 9

ER -