DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hartanto, Donny | ko |
dc.contributor.author | Kim, Chihyung | ko |
dc.contributor.author | Kim, Yonghee | ko |
dc.date.accessioned | 2016-07-07T06:58:44Z | - |
dc.date.available | 2016-07-07T06:58:44Z | - |
dc.date.created | 2016-07-04 | - |
dc.date.created | 2016-07-04 | - |
dc.date.issued | 2016-08 | - |
dc.identifier.citation | ANNALS OF NUCLEAR ENERGY, v.94, pp.62 - 71 | - |
dc.identifier.issn | 0306-4549 | - |
dc.identifier.uri | http://hdl.handle.net/10203/210157 | - |
dc.description.abstract | This work is concerned with minimization of the excess reactivity in a compact linear breed-and-burn fast reactor (B&BR). Neutronic studies are performed to reduce the core excess reactivity below 1 $ in order to prevent possibility of the prompt criticality accident. A reference B&BR core design is introduced as a starting point for the optimization, which is loaded with vented annular metallic (U-Zr) fuels. The initial criticality of the BUR core is achieved by using an LEU (low-enriched U) fuel and a spent nuclear fuel is reutilized as the blanket fuels. In order to minimize the transitional excess reactivity of the B&BR core, this study proposes a splitting of the Zr content in the U-Zr metallic fuel in combination with a geometrical optimization of the initial LEU core to flatten the radial power distribution simultaneously. A Zr-zoning is first applied to the initial LEU core to reduce excess reactivity and then a concave initial LEU core is also adopted to achieve both small excess reactivity and long lifetime of the B&BR core. In addition, a similar Zr-zoning strategy is also applied to the blanket region to optimize the excess reactivity behavior and flatten the radial power as well. It is demonstrated that a Zr-zoning combined with a concave core configuration can provides a promising neutronic performances. Finally, a recommended core has been characterized in terms of the burnup reactivity change, conversion ratio, power profiles, and reactivity coefficients. (C) 2016 Elsevier Ltd. All rights reserved | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | STRATEGY | - |
dc.subject | FUEL | - |
dc.title | An optimization study on the excess reactivity in a linear breed-and-burn fast reactor (B&BR) | - |
dc.type | Article | - |
dc.identifier.wosid | 000377231600008 | - |
dc.identifier.scopusid | 2-s2.0-84960109678 | - |
dc.type.rims | ART | - |
dc.citation.volume | 94 | - |
dc.citation.beginningpage | 62 | - |
dc.citation.endingpage | 71 | - |
dc.citation.publicationname | ANNALS OF NUCLEAR ENERGY | - |
dc.identifier.doi | 10.1016/j.anucene.2016.02.017 | - |
dc.contributor.localauthor | Kim, Yonghee | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | B& | - |
dc.subject.keywordAuthor | BR | - |
dc.subject.keywordAuthor | Excess reactivity minimization | - |
dc.subject.keywordAuthor | Vented annular metallic fuel | - |
dc.subject.keywordAuthor | Concave core | - |
dc.subject.keywordAuthor | Zr-zoning | - |
dc.subject.keywordAuthor | McCARD | - |
dc.subject.keywordPlus | STRATEGY | - |
dc.subject.keywordPlus | FUEL | - |
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