DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nguyen, Xuan Ha | ko |
dc.contributor.author | Kim, Yonghee | ko |
dc.date.accessioned | 2018-05-23T06:44:26Z | - |
dc.date.available | 2018-05-23T06:44:26Z | - |
dc.date.created | 2018-04-30 | - |
dc.date.created | 2018-04-30 | - |
dc.date.created | 2018-04-30 | - |
dc.date.issued | 2018-04 | - |
dc.identifier.citation | NUCLEAR SCIENCE AND ENGINEERING, v.189, no.3, pp.224 - 242 | - |
dc.identifier.issn | 0029-5639 | - |
dc.identifier.uri | http://hdl.handle.net/10203/241577 | - |
dc.description.abstract | Detailed pin-by-pin core calculations are under development to replace the conventional assembly-based nodal methods. This research investigates a novel intrapin reconstruction procedure coupled with these pinwise calculations to obtain a detailed power profile within a fuel rod. The reconstruction process is based on the well-established form function (FF) method. In this paper, the fuel rod is geometrically divided into 40 equi-volume subsections where the intrapin power is reconstructed with corresponding heterogeneous FF. The intrapin homogeneous flux distributions are approximated by using the analytical solution of the two-group neutron diffusion equation with pinwise boundary constraints. Four types of constraints are considered to determine the flux shapes: surface-average net current, surface-average, corner-point, and volume-average cell fluxes. Therefore, six different combinations of the boundary constraints are separately evaluated for the intrapin power profile. All necessary information, including burnup-dependent FFs, homogenized group constants, reference power distribution, and pinwise boundary constraints, are predetermined from a high-fidelity Monte Carlo calculation. The numerical results demonstrate that the intrapin power can be retrieved for enriched and Gd-loaded fuel pins with reasonable accuracy, even at rodded conditions and in highly burned conditions of 10 and 30 GWd/tonne U. In addition, a sensitivity analysis is also performed to assess the feasibility of the proposed method when it is coupled with a pinwise calculation. | - |
dc.language | English | - |
dc.publisher | TAYLOR & FRANCIS INC | - |
dc.subject | PIN | - |
dc.subject | FLUX | - |
dc.title | A Study on Reconstruction of Intrapin Power Distribution in Pinwise Two-Group Diffusion Analysis | - |
dc.type | Article | - |
dc.identifier.wosid | 000429545600002 | - |
dc.identifier.scopusid | 2-s2.0-85041709919 | - |
dc.type.rims | ART | - |
dc.citation.volume | 189 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 224 | - |
dc.citation.endingpage | 242 | - |
dc.citation.publicationname | NUCLEAR SCIENCE AND ENGINEERING | - |
dc.identifier.doi | 10.1080/00295639.2017.1394086 | - |
dc.contributor.localauthor | Kim, Yonghee | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Intrapin power reconstruction | - |
dc.subject.keywordAuthor | pinwise reactor analysis | - |
dc.subject.keywordAuthor | form function method | - |
dc.subject.keywordPlus | PIN | - |
dc.subject.keywordPlus | FLUX | - |
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