Abstract
A technically more direct statistical combinations of uncertainties methodology, extended SCU (XSCU), was applied to statistically combine the uncertainties associated with the DNBR alarm setpoint and the DNBR trip setpoint of digital nuclear power plants. The modified SCU (MSCU) methodology is currently used as the USNRC approved design methodology to perform the same function. In this report, the MSCU and XSCU methodologies were compared in terms of the total uncertainties and the net margins to the DNBR alarm and trip setpoints. The MSCU methodology resulted in the small total penalties due to a significantly negative bias which are quite large. However the XSCU methodology gave the virtually unbiased total uncertainties. The net margins to the DNBR alarm and trip setpoints by the MSCU methodology agree with those by the XSCU methodology within statistical variations. (Author) 12 refs., 17 figs., 5 tabs.
In, Wang Ki;
Uh, Keun Sun;
Chul, Kim Heui
[1]
- Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)
Citation Formats
In, Wang Ki, Uh, Keun Sun, and Chul, Kim Heui.
Application of extended statistical combination of uncertainties methodology for digital nuclear power plants.
Korea, Republic of: N. p.,
1995.
Web.
In, Wang Ki, Uh, Keun Sun, & Chul, Kim Heui.
Application of extended statistical combination of uncertainties methodology for digital nuclear power plants.
Korea, Republic of.
In, Wang Ki, Uh, Keun Sun, and Chul, Kim Heui.
1995.
"Application of extended statistical combination of uncertainties methodology for digital nuclear power plants."
Korea, Republic of.
@misc{etde_103218,
title = {Application of extended statistical combination of uncertainties methodology for digital nuclear power plants}
author = {In, Wang Ki, Uh, Keun Sun, and Chul, Kim Heui}
abstractNote = {A technically more direct statistical combinations of uncertainties methodology, extended SCU (XSCU), was applied to statistically combine the uncertainties associated with the DNBR alarm setpoint and the DNBR trip setpoint of digital nuclear power plants. The modified SCU (MSCU) methodology is currently used as the USNRC approved design methodology to perform the same function. In this report, the MSCU and XSCU methodologies were compared in terms of the total uncertainties and the net margins to the DNBR alarm and trip setpoints. The MSCU methodology resulted in the small total penalties due to a significantly negative bias which are quite large. However the XSCU methodology gave the virtually unbiased total uncertainties. The net margins to the DNBR alarm and trip setpoints by the MSCU methodology agree with those by the XSCU methodology within statistical variations. (Author) 12 refs., 17 figs., 5 tabs.}
place = {Korea, Republic of}
year = {1995}
month = {Feb}
}
title = {Application of extended statistical combination of uncertainties methodology for digital nuclear power plants}
author = {In, Wang Ki, Uh, Keun Sun, and Chul, Kim Heui}
abstractNote = {A technically more direct statistical combinations of uncertainties methodology, extended SCU (XSCU), was applied to statistically combine the uncertainties associated with the DNBR alarm setpoint and the DNBR trip setpoint of digital nuclear power plants. The modified SCU (MSCU) methodology is currently used as the USNRC approved design methodology to perform the same function. In this report, the MSCU and XSCU methodologies were compared in terms of the total uncertainties and the net margins to the DNBR alarm and trip setpoints. The MSCU methodology resulted in the small total penalties due to a significantly negative bias which are quite large. However the XSCU methodology gave the virtually unbiased total uncertainties. The net margins to the DNBR alarm and trip setpoints by the MSCU methodology agree with those by the XSCU methodology within statistical variations. (Author) 12 refs., 17 figs., 5 tabs.}
place = {Korea, Republic of}
year = {1995}
month = {Feb}
}