Uncertainty and Sensitivity Analysis of Void Reactivity Feedback for 3D BWR Assembly Model

Autor:	Andrius Slavickas, Raimondas Pabarčius, Aurimas Tonkūnas, Eugenijus Ušpuras
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Science and Technology of Nuclear Installations, Vol 2017 (2017)
Druh dokumentu:	article
ISSN:	1687-6075 1687-6083
DOI:	10.1155/2017/9894727
Popis:	Uncertainty and sensitivity analysis of void reactivity feedback for 3D BWR fuel assembly model is presented in this paper. Uncertainties in basic input data, such as the selection of different cross section library, manufacturing uncertainties in material compositions, and geometrical dimensions, as well as operating data are considered. An extensive modelling of different input data realizations associated with their uncertainties was performed during sensitivity analysis. The propagation of uncertainties was analyzed using the statistical approach. The results revealed that important information on the code predictions can be obtained by analyzing and comparing the codes estimations and their associated uncertainties.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/cd6af145fbdd4a748b25bc19f4bb6d4a Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF