Development of passive shutdown system for large-scale sodium-cooled fast reactor

Fujita, Kaoru ; Yamano, Hidemasa ; Kubo, Shigenobu* ; Shimakawa, Yoshio*; Ikarimoto, Iwao*

A self-actuated shutdown system (SASS) is developed to be adapted to JSFR for enhancing safety against anticipated transient without scram (ATWS). The SASS is a passive device, which detach a control rod responding to abnormal increment of coolant temperature. The control rods for backup shutdown system are hold by the electromagnet and the temperature sensitive alloy, which lose the magnetic nature due to the increase of temperature, is installed in the magnetic circuit of SASS. In this paper, the status of SASS development and the result of the validation analysis against ATWS are reported.

Language	:	Japanese
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Meeting title	:	日本機械学会2010年度年次大会
Held date	:	2010/09
Location (city)	:	名古屋
Location (country)	:	日本
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Keywords	:	no keyword
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Article of JAEA R&D Review	:
Cooperating Institute	:	日本原子力発電

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Registration No. : BB20101675
JAEA Abstracts No. :
Paper Submission No. :

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