Streamlined best estimate plus uncertainty analysis of a GEN III + BWR for a bottom drain line small break LOCA

Zhang, Xueyan; Deng, Chengcheng; Hu, Mengyan; Zhang, Yixuan; Cheng, Peng

doi:10.1016/j.anucene.2022.109635

Cited by 3 publications

(1 citation statement)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the 1988 amendment of the 10 CFR 50.46 rule, Best Estimate Plus Uncertainty (BEPU) methods have been approved by the Nuclear Regulatory Commission (NRC) as an alternative way for nuclear safety analysis [1]. The BEPU method has been developed internationally and become a popular nuclear safety analysis method in recent years [2][3][4]. Compared to traditional conservative analysis methods, the BEPU method uses the bestestimate nuclear simulation codes (such as RELAP5, TRACE, and MELCOR) to carry out more realistic and accurate calculations, which can bring more economic benefits on the premise of ensuring nuclear safety.…”

Section: Introductionmentioning

confidence: 99%

Coupling Design and Validation Analysis of an Integrated Framework of Uncertainty Quantification

Pang

Wang

et al. 2023

Energies

Self Cite

View full text Add to dashboard Cite

The uncertainty quantification is an indispensable part for the validation of the nuclear safety best-estimate codes. However, the uncertainty quantification usually requires the combination of statistical analysis software and nuclear reactor professional codes, and it consumes huge computing resources. In this paper, a design method of coupling interface between DAKOTA Version 6.16 statistical software and nuclear reactor professional simulation codes is proposed, and the integrated computing workflow including interface pre-processing, code batching operations, and interface post-processing can be realized. On this basis, an integrated framework of uncertainty quantification is developed, which is characterized by visualization, convenience, and efficient computing. Meanwhile, a typical example of small-break LOCA analysis of the LOBI test facility was used to validate the reliability of the developed integrated framework of uncertainty quantification. This research work can provide valuable guidance for developing an autonomous uncertainty analysis platform in China.

show abstract

Section: Introductionmentioning

confidence: 99%