TY - JOUR
T1 - Consequence analysis of a postulated nuclear excursion in BWR spent fuel pool using 1/fβ spectrum model of randomization
AU - Simanullang, Irwan Liapto
AU - Yamane, Yuichi
AU - Kikuchi, Takeo
AU - Tonoike, Kotaro
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/11
Y1 - 2020/11
N2 - This study investigated a postulated criticality event that occurred in the fuel debris produced after the loss of the cooling function in a spent fuel pool. The 1/fβ spectrum model was introduced to overcome this situation considering the difficulties of predicting the random fuel debris distribution. The number of fissions in the first peak power was analyzed using the Nordheim – Fuchs model. A total of 100 replicas were considered to investigate the fluctuation of the number of fissions. The results show that the number of fissions per volume varied from 3.78 × 1019 to 1.49 × 1020 (fissions/m3). Moreover, the distribution of the number of fissions was positively skewed.
AB - This study investigated a postulated criticality event that occurred in the fuel debris produced after the loss of the cooling function in a spent fuel pool. The 1/fβ spectrum model was introduced to overcome this situation considering the difficulties of predicting the random fuel debris distribution. The number of fissions in the first peak power was analyzed using the Nordheim – Fuchs model. A total of 100 replicas were considered to investigate the fluctuation of the number of fissions. The results show that the number of fissions per volume varied from 3.78 × 1019 to 1.49 × 1020 (fissions/m3). Moreover, the distribution of the number of fissions was positively skewed.
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U2 - 10.1016/j.anucene.2020.107675
DO - 10.1016/j.anucene.2020.107675
M3 - Article
AN - SCOPUS:85087284174
SN - 0306-4549
VL - 147
JO - Annals of Nuclear Energy
JF - Annals of Nuclear Energy
M1 - 107675
ER -