Study on in-pile performance of silicide fuel under power transient

Yanagisawa, Kazuaki

Power transient test was conducted on un-irradiated silicide mini-plate fuels. A failure threshold of tested fuel is revealed between 82 and 94 cal per gram fuel plate. Failure mechanism of a through plate cracking is a thermal stress caused by a large temperature drop (T 94 $^{circ}$ C), combined with a rapid quench (0.13s). Additionally, a water channel closure (plate bowing) was studied by triplet and single plate configurations as a function of peak cladding surface temperature (PCST). From this study adaptability of licensing criteria (228 $^{circ}$ C) applied to the water channel closure of Japan Research Reactor-3 (JRR-3) and Japan Materials Testing Reactor (JMTR) silicide fuels are experimentally confirmed.

Language	:	English
Journal	:	Proceedings of 31st International Meeting on Reduced Enrichment for Research and Test Reactors (RERTR 2009) (Internet)
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Pages	:	11 Pages
Publication Year/Month	:	2010/03
Meeting title	:	31st International Meeting on Reduced Enrichment for Research and Test Reactors (RERTR 2009)
Held date	:	2009/11
Location (city)	:	Beijing
Location (country)	:	China
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Keywords	:	no keyword
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Registration No. : BB20091644
JAEA Abstracts No. : 38000799
Paper Submission No. : 7423

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