Experimental and analytical study of failed fuel detection and location system in JSFR

Aizawa, Kosuke ; Oshima, Jun*; Kamide, Hideki ; Kasahara, Naoto

JSFR adopts a Selector-Valve mechanism for the failed fuel detection and location (FFDL) system. The Selector-Valve FFDL system identifies failed fuel subassemblies by sampling sodium from each fuel subassembly outlet and detecting fission product or delayed neutron. One of the JSFR design features is employing an upper internal structure (UIS) with a radial slit, in which an arm of fuel handling machine can move and access the fuel assemblies under the UIS. Thus, JSFR cannot place sampling nozzles right above the fuel subassemblies located under the slit. To overcome above diffculties, we have developed the sampling method for indentifying the failed fuel subassemblies located under the slit by numerical simulations and water experiments.

Language	:	English
Journal	:	Proceedings of International Conference on Fast Reactors and Related Fuel Cycles (FR 2009) (CD-ROM)
Volume	:
Number	:
Pages	:	11 Pages
Publication Year/Month	:	2012/00
Meeting title	:	International Conference on Fast Reactors and Related Fuel Cycles (FR 2009)
Held date	:	2009/12
Location (city)	:	Kyoto
Location (country)	:	Japan
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PDF	:
Paper URL	:	http://www-pub.iaea.org/mtcd/meetings/PDFplus/2009/cn176/cn176_BoeS.pdf
DOI for research data	:
Keywords	:	no keyword
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Registration No. : BB20092797
JAEA Abstracts No. :
Paper Submission No. : 12244

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