Sensitivity analysis of xenon reactivity temperature dependency for HTTR LOFC test by using RELAP5-3D code
本多 友貴; 深谷 裕司; 中川 繁昭; Baker, R. I.*; 佐藤 博之
Honda, Yuki; Fukaya, Yuji; Nakagawa, Shigeaki; Baker, R. I.*; Sato, Hiroyuki
A high-temperature gas-cooled reactor (HTGR) has superior safety characteristics. A loss of forced cooling (LOFC) test using a high-temperature engineering test reactor (HTTR) has been carried out to verify the inherent safety of an HTGR when forced cooling is diminished without reactor scram. In the test, an all-gas circulator was tripped with an initial reactor power of 9 MW and re-criticality was shown. This study focuses on developing a point kinetics method with RELAP5-3D code for an LOFC accident. There is a large temperature difference between the inlet and outlet of the core in an HTGR, and the temperature fluctuation range has been large in several accidents. We analyze the temperature dependency of xenon-135 reactivity and show that the temperature dependency of xenon-135 microscopic absorption cross-section affected the re-criticality time of the LOFC test.
使用言語 : English
掲載資料名 : Proceedings of 8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016) (CD-ROM)
ページ数 : p.704 - 713
発行年月 : 2016/11
出版社名 : American Nuclear Society
発表会議名 : 8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016)
開催年月 : 2016/11
開催都市 : Las Vegas
開催国 : U. S. A.
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登録番号 : BB20160690
抄録集掲載番号 : 45000208
論文投稿番号 : 18535
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