Development of multicomponent vaporization/condensation model for a reactor safety analysis code SIMMER-III: Extended verification using multi-bubble condensation experiment

Tohru Suzuki, Yoshiharu Tobita, Hidemasa Yamano, Satoru Kondo, Koji Morita, Tatsuya Matsumoto, Ryo Akasaka, Kenji Fukuda

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Complex phenomena such as phase transitions and heat transfers in multiphase, multicomponent flows were modeled in the fluid-dynamics portion of SIMMER-III, which was developed to appropriately assess core disruptive accidents (CDAs) in liquid-metal fast reactors (LMFRs). A new multicomponent vaporization/condensation (V/C) model was developed and introduced to SIMMER-III by the authors. In the present study, a new series of multi-bubble condensation experiments was performed to demonstrate that SIMMER-III with the present V/C model is practically applicable to multicomponent, multiphase flow systems with phase transition. In the experiments, bubble diameters and void fractions were quantified from visualization images using original image-processing techniques. Comparing SIMMER-III predictions with experimental data, it was confirmed that SIMMER-III with the proposed V/C model could suitably represent the effects of noncondensable components on the condensation process in multi-bubble systems. This work has improved the reliability of SIMMER-III with regard to multicomponent phase-transition phenomena.

Original languageEnglish
Pages (from-to)240-254
Number of pages15
JournalNuclear Engineering and Design
Volume220
Issue number3
DOIs
Publication statusPublished - Apr 1 2003
Externally publishedYes

Fingerprint

reactor safety
vaporization
Vaporization
bubble
condensation
Condensation
bubbles
phase transition
multiphase flow
Phase transitions
Multiphase flow
experiment
Experiments
Core disruptive accidents
fluid dynamics
image processing
void
Void fraction
Fast reactors
accident

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • Mechanical Engineering

Cite this

Development of multicomponent vaporization/condensation model for a reactor safety analysis code SIMMER-III : Extended verification using multi-bubble condensation experiment. / Suzuki, Tohru; Tobita, Yoshiharu; Yamano, Hidemasa; Kondo, Satoru; Morita, Koji; Matsumoto, Tatsuya; Akasaka, Ryo; Fukuda, Kenji.

In: Nuclear Engineering and Design, Vol. 220, No. 3, 01.04.2003, p. 240-254.

Research output: Contribution to journalArticle

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