[2G15-17] Kinetics Analysis

[2G15] The reactivity condition for linear temperature feedback in estimating the number of fissions in power peak

*Yuichi Yamane¹ (1. JAEA)

Keywords:criticality accident, number of fissions, temperature feedback, reactivity, one-point kinetics

For the evaluation of the applicability of simple methods to estimate consequence of criticality accident, in estimating the 1^st peak energy, the reactivity condition was investigated in which temperature feedback reactivity is linear with respect to temperature rise. The reactivity range for the condition has been clearly shown by introducing a new index consisting of the ratio of reactivity temperature coefficients.