Analysis of multi-dimensional boiling flow in secondary water pool of horizontal PCCS; Effect of pool size

Onuki, Akira; Nakamura, Hideo; Kawamura, Shinichi*; Saishu, Sadanori*

Nihon Kikai Gakkai Netsu Kogaku Koenkai Koen Rombunshu, p.31 - 32, 2001/11

A passive containment cooling system (PCCS) is under planning to use in a next-generation-type BWR for long-term cooling by condensing steam using horizontal heat exchangers. Heat transfer behavior in a secondary water pool is one of important phenomena governing heat removal performance of the PCCS. Boiling and condensation can be supposed under high heat flux regions and the characteristics of the two-phase natural circulation should be evaluated. This study investigated effects of pool size on the characteristics by multi-dimensional two-fluid model code ACE-3D. It was found from the analyses that the pool size gives no significant influences for the characteristics in tube bundle under local-boiling mode.

Analysis of steam-blanket effect in PCCS with horizontal heat exchanger

Onuki, Akira; Nakamura, Hideo; Anoda, Yoshinari

Dai-7-Kai Doryoku Enerugi Gijutsu Shimpojiumu Koen Rombunshu (00-11), p.258 - 263, 2000/00

no abstracts in English

Status and subjects of thermal-hydraulic analysis for next-generation LWRs with passive safety systems

JAERI-Review 98-006, 194 Pages, 1998/03

JAERI-Review-98-006.pdf:8.23MB

no abstracts in English

Development of multidimensional two-fluid model code ACE-3D for evaluation of constitutive equations

Onuki, Akira; Kamo, Hideki*;

JAERI-Data/Code 96-033, 76 Pages, 1996/11

JAERI-Data-Code-96-033.pdf:1.92MB

no abstracts in English

Multiphase flow technology in development of light water reactors

Konsoryu, 10(4), p.360 - 363, 1996/00

https://doi.org/10.3811/jjmf.10.360

no abstracts in English