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Perturbation Theory-Based Whole-Core Eigenvalue Sensitivity and Uncertainty (SU) Analysis via a 2D1D Transport Code
المؤلفون المشاركون
Hao, Chen
Ma, Ji
Liu, Lixun
Zhou, Yuekai
المصدر
Science and Technology of Nuclear Installations
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-02-01
دولة النشر
مصر
عدد الصفحات
13
الملخص EN
For nuclear reactor physics, uncertainties in the multigroup cross sections inevitably exist, and these uncertainties are considered as the most significant uncertainty source.
Based on the home-developed 3D high-fidelity neutron transport code HNET, the perturbation theory was used to directly calculate the sensitivity coefficient of keff to the multigroup cross sections, and a reasonable relative covariance matrix with a specific energy group structure was generated directly from the evaluated covariance data by using the transforming method.
Then, the “Sandwich Rule” was applied to quantify the uncertainty of keff.
Based on these methods, a new SU module in HNET was developed to directly quantify the keff uncertainty with one-step deterministic transport methods.
To verify the accuracy of the sensitivity and uncertainty analysis of HNET, an infinite-medium problem and the 2D pin-cell problem were used to perform SU analysis, and the numerical results demonstrate that acceptable accuracy of sensitivity and uncertainty analysis of the HNET are achievable.
Finally, keff SU analysis of a 3D minicore was analyzed by using the HNET, and some important conclusions were also drawn from the numerical results.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ma, Ji& Hao, Chen& Liu, Lixun& Zhou, Yuekai. 2020. Perturbation Theory-Based Whole-Core Eigenvalue Sensitivity and Uncertainty (SU) Analysis via a 2D1D Transport Code. Science and Technology of Nuclear Installations،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1209544
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ma, Ji…[et al.]. Perturbation Theory-Based Whole-Core Eigenvalue Sensitivity and Uncertainty (SU) Analysis via a 2D1D Transport Code. Science and Technology of Nuclear Installations No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1209544
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ma, Ji& Hao, Chen& Liu, Lixun& Zhou, Yuekai. Perturbation Theory-Based Whole-Core Eigenvalue Sensitivity and Uncertainty (SU) Analysis via a 2D1D Transport Code. Science and Technology of Nuclear Installations. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1209544
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1209544
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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