Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental data

We validated the performance of RELAP MOD3.3 code regarding the hybrid SIT with available experimental data. The concept of the hybrid SIT is to connect the pressurizer to SIT to utilize the water inside SIT in the case of SBO or SB-LOCA combined with TLOFW. We investigated how well RELAP5 code pred...

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Main Authors: Ho Joon Yoon, Waleed Al Naqbi, Omar S. Al-Yahia, Daeseong Jo
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573319308125
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author Ho Joon Yoon
Waleed Al Naqbi
Omar S. Al-Yahia
Daeseong Jo
author_facet Ho Joon Yoon
Waleed Al Naqbi
Omar S. Al-Yahia
Daeseong Jo
author_sort Ho Joon Yoon
collection DOAJ
description We validated the performance of RELAP MOD3.3 code regarding the hybrid SIT with available experimental data. The concept of the hybrid SIT is to connect the pressurizer to SIT to utilize the water inside SIT in the case of SBO or SB-LOCA combined with TLOFW. We investigated how well RELAP5 code predicts the physical phenomena in terms of the equilibrium time, stratification, condensation against Separate Effect Test (SET) data. We also conducted the validation of RELAP5 code against Integrated Effect Test (IET) experimental data produced by the ATLAS facility. We followed conventional approach for code validation of IET data, which are pre-test and post-test calculation. RELAP5 code shows substantial difference with changing number of nodes. The increase of the number of nodes tends to reduce the condensation rate at the interface between liquid and vapor inside the hybrid SIT. The environmental heat loss also contributes to the large discrepancy between the simulation results of RELAP5 and the experimental data.
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spelling doaj.art-c621bb91901a4fdebf56f9f99e50da4d2022-12-21T19:36:47ZengElsevierNuclear Engineering and Technology1738-57332020-09-0152919261938Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental dataHo Joon Yoon0Waleed Al Naqbi1Omar S. Al-Yahia2Daeseong Jo3Department of Nuclear Engineering, Khalifa University of Science and Technology(KUST), United Arab Emirates; Emirates Nuclear Technology Center, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Corresponding author. Department of Nuclear Engineering, Khalifa University of Science and Technology(KUST), United Arab Emirates.Department of Nuclear Engineering, Khalifa University of Science and Technology(KUST), United Arab EmiratesDepartment of Nuclear Engineering, Khalifa University of Science and Technology(KUST), United Arab Emirates; Emirates Nuclear Technology Center, P.O. Box 127788, Abu Dhabi, United Arab EmiratesSchool of Mechanical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of KoreaWe validated the performance of RELAP MOD3.3 code regarding the hybrid SIT with available experimental data. The concept of the hybrid SIT is to connect the pressurizer to SIT to utilize the water inside SIT in the case of SBO or SB-LOCA combined with TLOFW. We investigated how well RELAP5 code predicts the physical phenomena in terms of the equilibrium time, stratification, condensation against Separate Effect Test (SET) data. We also conducted the validation of RELAP5 code against Integrated Effect Test (IET) experimental data produced by the ATLAS facility. We followed conventional approach for code validation of IET data, which are pre-test and post-test calculation. RELAP5 code shows substantial difference with changing number of nodes. The increase of the number of nodes tends to reduce the condensation rate at the interface between liquid and vapor inside the hybrid SIT. The environmental heat loss also contributes to the large discrepancy between the simulation results of RELAP5 and the experimental data.http://www.sciencedirect.com/science/article/pii/S1738573319308125RELAP5 MOD3.3Hybrid SITSeparate effect testIntegrated effect testATLASCondensation
spellingShingle Ho Joon Yoon
Waleed Al Naqbi
Omar S. Al-Yahia
Daeseong Jo
Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental data
Nuclear Engineering and Technology
RELAP5 MOD3.3
Hybrid SIT
Separate effect test
Integrated effect test
ATLAS
Condensation
title Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental data
title_full Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental data
title_fullStr Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental data
title_full_unstemmed Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental data
title_short Validation of RELAP5 MOD3.3 code for Hybrid-SIT against SET and IET experimental data
title_sort validation of relap5 mod3 3 code for hybrid sit against set and iet experimental data
topic RELAP5 MOD3.3
Hybrid SIT
Separate effect test
Integrated effect test
ATLAS
Condensation
url http://www.sciencedirect.com/science/article/pii/S1738573319308125
work_keys_str_mv AT hojoonyoon validationofrelap5mod33codeforhybridsitagainstsetandietexperimentaldata
AT waleedalnaqbi validationofrelap5mod33codeforhybridsitagainstsetandietexperimentaldata
AT omarsalyahia validationofrelap5mod33codeforhybridsitagainstsetandietexperimentaldata
AT daeseongjo validationofrelap5mod33codeforhybridsitagainstsetandietexperimentaldata