Local-spectrum-modified fast reactor cores with hydrides

Tsugio Yokoyama, Kenji Konashi, Tomohiko Iwasaki, Takayuki Terai, Michio Yamawaki

研究成果: Conference contribution

11 被引用数 (Scopus)

抄録

the application of different hydride materials to core components except for the driver fuel assembly is studied to achieve high core performances for fast reactor by reducing neutron energy and increasing reaction rates locally. The mixtures of absorber materials such as Gd and Zr-hydride are employed to control materials to increase reactivity worth. An optimized composition and layout of the control materials has shown the feature of burnable poison even in the fast reactor where the reaction rate of absorber nuclides is increased enough to annihilate themselves at the end of cycles. The radial blanket made of the mixture of oxide uranium and Zr-hydride is examined to decrease the required thickness as well as to achieve a non-proliferation feature in plutonium isotope compositions in discharged fuels. The shielding performance of radial shield made of Zr-hydride is evaluated to decrease the whole core diameter. Special fuel assemblies mixed with minor actinides and Zr-hydride located at the core peripherals are studied to transmute the minor actinides to fissionable materials effectively. The results has indicates that the application of the hydride materials will increase the core performances twice or triple in general.

本文言語English
ホスト出版物のタイトルProceedings of the 2006 International Congress on Advances in Nuclear Power Plants, ICAPP'06
ページ2492-2498
ページ数7
出版ステータスPublished - 2006
イベントAmerican Nuclear Society Embedded Topical Meeting - 2006 International Congress on Advances in Nuclear Power Plants, ICAPP'06 - Reno, NV, United States
継続期間: 2006 6 42006 6 8

出版物シリーズ

名前Proceedings of the 2006 International Congress on Advances in Nuclear Power Plants, ICAPP'06
2006

Other

OtherAmerican Nuclear Society Embedded Topical Meeting - 2006 International Congress on Advances in Nuclear Power Plants, ICAPP'06
CountryUnited States
CityReno, NV
Period06/6/406/6/8

ASJC Scopus subject areas

  • Engineering(all)

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