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*

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.

Language	:	Japanese
Journal	:	Nihon Kikai Gakkai Netsu Kogaku Koenkai Koen Rombunshu
Volume	:
Number	:
Pages	:	p.31 - 32
Publication Year/Month	:	2001/11
Meeting title	:	2001年度熱工学講演会
Held date	:	2001/11
Location (city)	:	岡山
Location (country)	:	日本
Patent information	:
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DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	Passive Safety; Boiling; Condensation; Numerical Simulation; Two-Fluid Model; Tube Bundle; Natural Circulation
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Article of JAEA R&D Review	:
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Registration No. : B20010779
JAEA Abstracts No. : 300123
Paper Submission No. : 18733

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