2445 非定常サブチャンネル解析コード NASCA の開発・改良 : (3) BT 及び POST-BT

概要

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Subchannel analysis code NASCA has been developed to calculate boiling transition and post-boiling transition behavior in BWR fuel. This paper is aimed to verify the applicability of NASCA code to BWR fuel. First, the critical power prediction analyses were performed. The analysis results showed good agreement with BWR fuel mockup test data. Then, transition test analyses were performed. Analysis results showed that calculated dryout time was longer than measured data in the case of re-circulation pump trip test, however, NASCA had much potential to calculate post-boiling transition behavior.
社団法人日本機械学会の論文
2000-07-31