High-Safety Fast Reactor Core Concepts to Improve Transmutation Efficiency of Long-lived Radioactive Waste

Autor:	Satoshi Itooka, Katsuyuki Kawashima, Masayuki Takakuwa, Koji Fujimura, Hiroshi Kiyotake, Akira Sasahira
Rok vydání:	2015
Předmět:	minor actinide Materials science Nuclear transmutation Nuclear engineering Radiochemistry Radioactive waste Minor actinide fast reactor moderator Rod Core (optical fiber) Nuclear reactor core Energy(all) Homogeneous sodium-void reactivity annular pellet sodium plenum
Zdroj:	Energy Procedia. 71:97-105
ISSN:	1876-6102
DOI:	10.1016/j.egypro.2014.11.859
Popis:	High-safety FR core concepts to improve transmutation efficiency of MAs were proposed. A heterogeneous MA loaded core was designed based on the 1000MWt-ABR breakeven core, which assumes the same amount of MAs with the 5%-MA homogeneous loaded core. The heterogeneous MA loaded core with 25%-ZrH 1.6 loaded moderator targets had a better transmutation performance than the 5%-MA homogeneous loaded core. As one of the possible design options for the MA target, the annular pellet rod design was proposed. It was shown that using the annular pellet MA rods mitigates the self-shielding effect in the moderated target so as to enhance the transmutation rate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::350a2b0769d5c9e508dc7ff443fd09d1 Zobrazit plný text záznamu