Status and plan of LOCA study at JAEA

Narukawa, Takafumi

JAEA has carried out studies on fuel behaviors under loss-of-coolant-accident (LOCA) conditions with both unirradiated and high-burnup advanced fuel cladding tube materials. As a result, various kinds of information have been obtained: oxidation, ballooning, rupture, thermal shock resistance (fracture/non-fracture conditions), post-LOCA mechanical strength, etc. In addition, new LOCA tests are planned at JAEA to investigate the effects of the phenomena of fuel fragmentation, relocation and dispersal (FFRD) on the fuel behaviors and the coolability of the reactor core during a LOCA. These results, including those obtained from the future study, are expected to provide the necessary information for future regulation on high-burnup fuels with advanced cladding alloys.

Language	:	English
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Meeting title	:	Fuel Safety Research Meeting 2018 (FSRM 2018)
Held date	:	2018/10
Location (city)	:	Mito
Location (country)	:	Japan
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DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	LOCA; Advanced Fuel Cladding; High Burnup; Thermal Shock Resistance; Ballooning; Rupture; Oxidation; Four-point-bend test
Research Facility	:	RFEF(燃料試験施設)
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Registration No. : BB20181252
JAEA Abstracts No. :
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