Energy released in criticality accident by instantaneous reactivity insertion to system with non-linear temperature feedback

Yamane, Yuichi

For criticality accidents due to instantaneous insertion of reactivity to the system with non-linear temperature reactivity feedback, an equation has been derived based on one-point kinetics, by which equation the total fission energy is expressed as a function of initial excess reactivity and other kinetics parameters. The results obtained by using the equation and one-point kinetics code, AGNES, were compared to each other to show that the difference between them decreased with increase of excess reactivity from several ten % to 4%.

Language	:	Japanese
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Meeting title	:	日本原子力学会2016年春の年会
Held date	:	2016/03
Location (city)	:	仙台
Location (country)	:	日本
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Keywords	:	臨界事故; エネルギー; 非線形温度フィードバック反応度; 瞬時反応度添加; AGNES
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Registration No. : BB20152586
JAEA Abstracts No. :
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