The effect of coolant quantity on local fuel-coolant interactions in a molten pool

被引：10

作者：

Cheng, Songbai ^{[1
]}

Matsuba, Ken-ichi ^{[1
]}

Isozaki, Mikio ^{[1
]}

Kamiyama, Kenji ^{[1
]}

Suzuki, Tohru ^{[1
]}

Tobita, Yoshiharu ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Adv Fast Reactor Cycle Syst Res & Dev Ctr, Oarai, Ibaraki 3111393, Japan

来源：

ANNALS OF NUCLEAR ENERGY | 2015年 / 75卷

关键词：

Sodium-cooled fast reactor; Severe accident; Local fuel-coolant interaction; Molten pool; Pressure-buildup; Mechanical energy; WATER;

D O I：

10.1016/j.anucene.2014.07.042

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Studies on local fuel-coolant interactions (FCI) in a molten pool are important for severe accident analyses of sodium-cooled fast reactors (SFRs). Motivated by providing some evidence for understanding this interaction, in this study several experimental tests, with comparatively larger difference in coolant volumes, were conducted by delivering a given quantity of water into a simulated molten fuel pool (formed with a low-melting-point alloy). Interaction characteristics including the pressure-buildup as well as mechanical energy release and its conversion efficiency are evaluated and compared. It is found that as water quantity increases, a limited pressure-buildup and the resultant mechanical energy release are observable. The performed analyses also suggest that only a part of water is probably vaporized during local FCIs and responsible for the pressurization and mechanical energy release, especially for those cases with much larger water volumes. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：20 / 25

页数：6

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