DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Nam-Zin | ko |
dc.contributor.author | Yu, Hui | ko |
dc.contributor.author | Kim, Jong Woon | ko |
dc.date.accessioned | 2013-08-08T03:40:54Z | - |
dc.date.available | 2013-08-08T03:40:54Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009-05 | - |
dc.identifier.citation | ANNALS OF NUCLEAR ENERGY, v.36, no.4, pp.448 - 457 | - |
dc.identifier.issn | 0306-4549 | - |
dc.identifier.uri | http://hdl.handle.net/10203/174245 | - |
dc.description.abstract | In a pebble-bed type very high temperature gas-cooled reactor (VHTGR). a typical fuel pebble consists of over ten thousand five-layer TRISO particles in a graphite-matrix. The high heterogeneity in composition leads to difficulty in explicit thermal calculation of pebble fuels. Thus, a homogenization model becomes essential. Currently, a simple volumetric-average thermal conductivity approach is used. However, this approach is non-conservative and underestimates the fuel temperature. In this paper, we describe a homogenization model that is not only easy to implement but also gives a more realistic temperature distribution in a fuel pebble, providing the fuel-kernel and graphite-matrix temperatures separately. Steady-state and transient thermal analyses are performed using the homogenization model, and the point kinetics model is then coupled with the homogenization model to incorporate fuel-kernel temperature feedback. (C) 2008 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | GEOMETRY | - |
dc.title | Two-temperature homogenized model for steady-state and transient thermal analyses of a pebble with distributed fuel particles | - |
dc.type | Article | - |
dc.identifier.wosid | 000265337600004 | - |
dc.identifier.scopusid | 2-s2.0-62349117144 | - |
dc.type.rims | ART | - |
dc.citation.volume | 36 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 448 | - |
dc.citation.endingpage | 457 | - |
dc.citation.publicationname | ANNALS OF NUCLEAR ENERGY | - |
dc.identifier.doi | 10.1016/j.anucene.2008.11.031 | - |
dc.contributor.localauthor | Cho, Nam-Zin | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | GEOMETRY | - |
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