Study of the Self-Controllability for the Fast Reactor Core with High-Thermal-Conductivity Fuel

被引：3

作者：

Ishizu, Tomoko ^{[1
,2
]}

Yokoyama, Tsugio ^{[2
]}

Endo, Hiroshi ^{[1
]}

Tokiwai, Moriyasu ^{[3
]}

Ninokata, Hisashi ^{[2
]}

机构：

[1] Japan Nucl Energy Safety Org JNES, Nucl Energy Syst Safety Div, Minato Ku, Tokyo 1050001, Japan

[2] Tokyo Inst Technol, Nucl Reactors Res Lab, Meguro Ku, Tokyo 1528550, Japan

[3] CRIEPI, Komae Lab, Komae, Tokyo 2018511, Japan

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2010年 / 47卷 / 08期

关键词：

aluminum alloy fuel; high thermal conductivity; self-controllability; ULOF limit line; UTOP limit line; safety map; CDA;

D O I：

10.3327/jnst.47.684

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：

The tolerance capability against ATWS for the FBR core with metallic fuel can be improved by employing a fuel with high thermal conductivity (HTC fuel) instead of the conventional metallic fuel, U-Pu-Zr. To investigate the self-controllability for the HTC-fueled core with U-Pu-Al alloy fuel, having one order of magnitude higher thermal conductivity than that of the U-Pu-Zr, the core employing the U-Pu-Al fuel was evaluated against ULOF and UTOP. Based on the systematic calculation, it was found that the larger temperature margin between the steady state and ULOF/UTOP conditions caused the excellent tolerance capability against ULOF and UTOP for the HTC-fueled core compared with that for the Zr-alloy-fueled core. Also, the conditions of the core reactivity coefficients required for neither fuel melting nor coolant boiling were investigated by using a "self-controllability map" consisting of effective fuel and coolant reactivities. As a result, the self-controllable region was found to be expanded especially for UTOP in the case of the HTC-fueled core.

引用

页码：684 / 697

页数：14

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