検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Evaluation of double leakage at primary heat transport systems of Monju with passive safety features

もんじゅの受動的安全特性を考慮した1次主冷却系2箇所漏えい評価

吉村 一夫; 池田 真輝典; 江沼 康弘  ; 相澤 康介 

Yoshimura, Kazuo; Ikeda, Makinori; Enuma, Yasuhiro; Aizawa, Kosuke

DECに対する最適評価手法としてもんじゅの受動的安全特性を考慮して1次主冷却系2箇所漏えい評価を行った。原子炉容器液位低下に伴うカバーガス圧力減少により漏えいナトリウム総量が緩和される(負圧効果)。この負圧効果を考慮することにより、1次主冷却系2箇所漏えい時にも崩壊熱除去に必要な原子炉容器液位を保持できる見通しを得た。

JAEA has conducted a safety evaluation of impacts of double leakage at the PHTSs considering the passive safety features of Monju as the best-estimate evaluation for a DEC. The result shows that the total amount of leaked sodium can be reduced by the depressurization of the cover gas resulting from decrease in coolant inventory, i.e. negative pressure effects. The reactor coolant level required for decay heat removal, therefore, can be maintained even under double leakage at the PHTSs.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.