Correlation analysis for screening key parameters for passive system reliability analysis

Ensembles of climate change models for risk assessment of nuclear power plants

“…The design input variables are listed in Table 1, together with their distributions chosen from expert judgment and the literature review. 7,33,34 The last two variables, which describe the surrounding environmental conditions and have to be used as input of the TH model, are the air temperature T and the air pressure A . The output variable is the pressure value of the containment pressure Y , after 1000 s from the beginning of the LOCA.…”

An efficient method of key parameter screening for PCCS under SLB accident in AP1000

“…There are always dozens of input parameters for T-H model, evaluating the effects of their uncertainties on system operation one by one is a heavy calculation burden, so, it is necessary to screen the important ones [7,8] to be analyzed in detail.…”

Finite mixture models for sensitivity analysis of thermal hydraulic codes for passive safety systems analysis

“…It is worth pointing out that this TH model has been solely used for the purpose of demonstration of the effectiveness of the proposed UA and SA methods in reducing the computational burden of the analysis. Therefore, the intent is not the demonstration and qualification of the TH model itself, but rather the presentation of a systematic approach for SA that is here verified with respect to this benchmark case study, elsewhere analyzed with other approaches [Di Maio et al 2014 a;Di Maio et al 2014c;Yu et al,, 2015]. The input variables used for calculating the PCCS capability of condensing the steam produced are listed in Table 1, together with their distributions chosen based on expert judgment and literature review [Burgazzi 2004], [Zio et al 2008b], [Zio et al 2010b to "Upper value" are reported.…”