کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8066911 1521077 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Importance of parametric uncertainty in predicting probability distributions for burst wait-times in fissile systems
ترجمه فارسی عنوان
اهمیت عدم قطعیت پارامتریک در پیش بینی توزیع احتمالات برای زمان انتظار وقفه در سیستم های تقسیم شده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
A method of uncertainty quantification in the calculation of wait-time probability distributions in delayed supercritical systems is presented. The method is based on Monte Carlo uncertainty quantification and makes use of the computationally efficient gamma distribution method for prediction of the wait-time probability distribution. The range of accuracy of the gamma distribution method is examined and parameterised based on the rate and magnitude of the reactivity insertion, the strength of the intrinsic neutron source and the prompt neutron lifetime. The saddlepoint method for inverting the generating function and a Monte Carlo simulation are used as benchmarks against which the accuracy of the gamma distribution method is determined. Finally, uncertainty quantification is applied to models of the Y-12 accident and experiments of Authier et al. (2014) on the Caliban reactor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Nuclear Energy - Volume 119, September 2018, Pages 117-128
نویسندگان
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