300 and 1200MW SFR design and multi-dimensional analysis using MARS-LMR = 300, 1200MW 소듐 고속로 설계 및 마스 코드를 이용한 다차원 해석

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dc.contributor.advisorChang, Soon-Heung-
dc.contributor.authorWoo, Seung-Min-
dc.description학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2011.2, [ 300 and 1200MW SFR design and multi-dimensional analysis using MARS-LMR], [ x, 63 p. ]-
dc.description.abstractKALIMER-600 (Korea Advanced Liquid Metal Reactor), which is a pool type SFR (Sodium-cooled Fast Reactor), was developed by KAERI (Korea Atomic Energy Research Institute). DBE(Design Basis Events) for KALIMER-600 has been analyzed in the one dimension. In this study, the one dimensional ana-lyzed sodium hot pool is modified to a three dimensional node system, because the one dimensional analysis cannot represent the phenomena of the inside pool of a big size pool with many compositions, such as UIS (Upper Internal Structure), IHX (Intermediate Heat eXchanger), DHX (Decay Heat eXchanger), and pump. Furthermore, the SFR design of 300 and 1200MWe are tried based on 600MWe. In the design of 300MWe, there are two different design challenges consisted with the one and two IHTS (Intermediate Heat Transport System) loops. The one and multi-dimensional analysis method are applied to the two conceptual designs of 300 and 1200MWe SFR. To begin with, the results of the multi-dimensional analysis compared with the one dimensional analy-sis results in normal operation, TOP (Transient of Over Power), LOF (Loss Of Flow), and LOHS (Loss Of Heat Sink) conditions. First, the results in normal operation condition show the good agreement between the one and multi-dimensional analysis. However, according to the sodium temperatures of the core inlet, outlet, the fuel central, cladding and PDRC (Passive Decay heat Removal Circuit), the temperatures of the one di-mensional analysis are generally higher than the multi-dimensional analysis in conditions except the normal operation state, and the PDRC operation time in the one dimensional analysis is generally longer than the multi-dimensional analysis. In particular, we can see the reverse and mixing flow phenomena in LOHS better than TOP and LOF, which affect the peak temperature in the one dimensional analysis at 330 s but is not observed in the multi-dimensional analysis. In addition, the different temperatures at the central of fuel...eng
dc.subject소듐 고속로-
dc.subjectMulti-Dimensional Analysis-
dc.title300 and 1200MW SFR design and multi-dimensional analysis using MARS-LMR = 300, 1200MW 소듐 고속로 설계 및 마스 코드를 이용한 다차원 해석-
dc.identifier.CNRN467775/325007 -
dc.description.department한국과학기술원 : 원자력및양자공학과, -
dc.contributor.localauthorChang, Soon-Heung-
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