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Development of design evaluation tools for the JSFR fuel transfer pot

JSFRの燃料輸送ポットの設計評価手法の開発

近澤 佳隆; 平田 慎吾; 小幡 宏幸*

Chikazawa, Yoshitaka; Hirata, Shingo; Obata, Hiroyuki*

JSFRは革新技術の一つとして簡素化燃料取扱いシステムを採用している。この中で2集合体輸送ポットは燃料交換時間の短縮による稼働率向上のための技術として開発されている。本研究では2集合体輸送ポットの除熱性能評価のための数値解析手法の開発を行った。

JSFR is going to adopt an advanced fuel handling system. As for ex-vessel spent fuel handling, a transfer pot with two fuel subassembly positions has been developed so as to shorten refueling period increasing plant availability. The pot is required to provide sufficient cooling capability in case of transportation malfunction. In this study, a three dimensional analysis model for heat transfer evaluation of the JSFR fuel transfer pot has been developed. The heat transfer models inside and outside the pot have been validated by reference experiments. Using the developed three-dimensional model, the JSFR fuel transfer pot has been analyzed. For a simpler design tool, a two dimensional analysis model has been developed. Comparison of the three and two dimensional analyses shows that two dimensional analyses could estimate pot cooling performance conservatively.

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パーセンタイル:100

分野:Nuclear Science & Technology

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