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http://dx.doi.org/10.5516/NET.2009.41.6.797

DEVELOPMENT OF THE MATRA-LMR-FB FOR FLOW BLOCKAGE ANALYSIS IN A LMR  

Ha, Kwi-Seok (Korea Atomic Energy Research Institute)
Jeong, Hae-Yong (Korea Atomic Energy Research Institute)
Chang, Won-Pyo (Korea Atomic Energy Research Institute)
Kwon, Young-Min (Korea Atomic Energy Research Institute)
Cho, Chung-Ho (Korea Atomic Energy Research Institute)
Lee, Yong-Bum (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.41, no.6, 2009 , pp. 797-806 More about this Journal
Abstract
The Multichannel Analyzer for Transient and steady-state in Rod Array - Liquid Metal Reactor for Flow Blockage analysis (MATRA-LMR-FB) code for the analysis of a subchannel blockage has been developed and evaluated through several experiments. The current version of the code is improved here by the implementation of a distributed resistance model which accurately considers the effect of flow resistance on wire spacers, by the addition of a turbulent mixing model, and by the application of a hybrid scheme for low flow regions. Validation calculations for the MATRA-LMR-FB code were performed for Oak Ridge National Laboratory (ORNL) 19-pin tests with wire spacers and Karlsruhe 169-pin tests with grid spacers. The analysis of the ORNL 19-pin tests conducted using the code reveals that the code has sufficient predictive accuracy, within a range of 5 $^{\circ}C$, for the experimental data with a blockage. As for the results of the analyses, the standard deviation for the Karlsruhe 169-pin tests, 0.316, was larger than the standard deviation for the ORNL 19-pin tests, 0.047.
Keywords
Sub-channel; Blockage; LMR; Distributed Resistance Model; MATRA-LMR;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
연도 인용수 순위
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