Abstract
This research aims to develop reliable, advanced system thermal-hydraulic computer code and to quantify the uncertainties of code to introduce the best estimate methodology of ECCS for LBLOCA. Although the one of best estimate code, RELAP5/MOD3.1 was introduced from USNRC, several deficiencies in its reflood model and some improvements have been made. The improvements consist of modification of reflood wall heat transfer package and adjusting the drop size in dispersed flow regime. The tome smoothing of wall vaporization and level tracking model are also added to eliminate the pressure spike and level oscillation. For the verification of improved model and quantification of associated uncertainty, the FLECHT-SEASET data were used and upper limit of uncertainty at 95% confidence level is evaluated. (Author) 30 refs., 49 figs., 2 tabs.
Lee, Sang Yong;
Chung, Bob Dong;
Lee, Young Jin;
Park, Chan Eok;
Lee, Guy Hyung;
Choi, Chul Jin
[1]
- Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)
Citation Formats
Lee, Sang Yong, Chung, Bob Dong, Lee, Young Jin, Park, Chan Eok, Lee, Guy Hyung, and Choi, Chul Jin.
Improvements to the RELAP5/MOD3 reflood model and uncertainty quantification of reflood peak clad temperature.
Korea, Republic of: N. p.,
1994.
Web.
Lee, Sang Yong, Chung, Bob Dong, Lee, Young Jin, Park, Chan Eok, Lee, Guy Hyung, & Choi, Chul Jin.
Improvements to the RELAP5/MOD3 reflood model and uncertainty quantification of reflood peak clad temperature.
Korea, Republic of.
Lee, Sang Yong, Chung, Bob Dong, Lee, Young Jin, Park, Chan Eok, Lee, Guy Hyung, and Choi, Chul Jin.
1994.
"Improvements to the RELAP5/MOD3 reflood model and uncertainty quantification of reflood peak clad temperature."
Korea, Republic of.
@misc{etde_103149,
title = {Improvements to the RELAP5/MOD3 reflood model and uncertainty quantification of reflood peak clad temperature}
author = {Lee, Sang Yong, Chung, Bob Dong, Lee, Young Jin, Park, Chan Eok, Lee, Guy Hyung, and Choi, Chul Jin}
abstractNote = {This research aims to develop reliable, advanced system thermal-hydraulic computer code and to quantify the uncertainties of code to introduce the best estimate methodology of ECCS for LBLOCA. Although the one of best estimate code, RELAP5/MOD3.1 was introduced from USNRC, several deficiencies in its reflood model and some improvements have been made. The improvements consist of modification of reflood wall heat transfer package and adjusting the drop size in dispersed flow regime. The tome smoothing of wall vaporization and level tracking model are also added to eliminate the pressure spike and level oscillation. For the verification of improved model and quantification of associated uncertainty, the FLECHT-SEASET data were used and upper limit of uncertainty at 95% confidence level is evaluated. (Author) 30 refs., 49 figs., 2 tabs.}
place = {Korea, Republic of}
year = {1994}
month = {Jun}
}
title = {Improvements to the RELAP5/MOD3 reflood model and uncertainty quantification of reflood peak clad temperature}
author = {Lee, Sang Yong, Chung, Bob Dong, Lee, Young Jin, Park, Chan Eok, Lee, Guy Hyung, and Choi, Chul Jin}
abstractNote = {This research aims to develop reliable, advanced system thermal-hydraulic computer code and to quantify the uncertainties of code to introduce the best estimate methodology of ECCS for LBLOCA. Although the one of best estimate code, RELAP5/MOD3.1 was introduced from USNRC, several deficiencies in its reflood model and some improvements have been made. The improvements consist of modification of reflood wall heat transfer package and adjusting the drop size in dispersed flow regime. The tome smoothing of wall vaporization and level tracking model are also added to eliminate the pressure spike and level oscillation. For the verification of improved model and quantification of associated uncertainty, the FLECHT-SEASET data were used and upper limit of uncertainty at 95% confidence level is evaluated. (Author) 30 refs., 49 figs., 2 tabs.}
place = {Korea, Republic of}
year = {1994}
month = {Jun}
}