A SUMMARY OF 50<sup>th</sup>OECD/NEA/CSNI INTERNATIONAL STANDARD PROBLEM EXERCISE (ISP-50)

Choi, Kyoung-Ho; Baek, Won-Pil; Kang, Kweon Ho; Park, Hyun Sik; Cho, Seok; Kim, Yeon Sik

doi:10.5516/net.02.2012.708

Cited by 13 publications

(3 citation statements)

References 6 publications

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“…Recently, similar effort has continued by D'auria's research group to consolidate qualified database (both experimental and code calculation results) through standardization, aiming to support the V&V activities of system codes and uncertainty methodologies [36]. In addition, new experimental data and thus new insight/safety issues have been continuously revealed [37,38] all of which are obviously precious to demonstrate and improve the nuclear system code capability. Note that many of these efforts are mainly to support the "independent" code assessment after completing the code development phase (section 3).…”

Section: Existing Vandv Effort For Nuclear System Safety Analysis Codesmentioning

confidence: 99%

RELAP-7 Software Verification and Validation Plan - Requirements Traceability Matrix (RTM) Part 2: Code Assessment Strategy, Procedure, and RTM Update

Yoo

Choi

Smith

2016

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This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for any third party's use, or the results of such use, of any information, apparatus, product, or process disclosed in this report, or represents that its use by such third party would not infringe privately owned rights.

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Section: Existing Vandv Effort For Nuclear System Safety Analysis Codesmentioning

confidence: 99%

RELAP-7 Software Verification and Validation Plan - Requirements Traceability Matrix (RTM) Part 2: Code Assessment Strategy, Procedure, and RTM Update

Yoo

Choi

Smith

2016

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“…These activity results were described in references [1][2][3]. International benchmarking activities using ATLAS were also performed for various scenarios by international joint projects, which are the 50th OECD/NEA/CSN international standard problem [4], OECD/NEA-ATLAS project [5], and OECD/NEA-ATLAS2 project [6].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Blind and Open Calculation Results for Top-Slot Break LOCA in Fourth ATLAS Domestic Standard Problem

et al. 2022

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The advanced thermal-hydraulic test loop for accident simulation (ATLAS) was developed and operated at The Korea Atomic Energy Research Institute. The ATLAS is operated to simulate accidents in pressurized water reactors (PWRs). A domestic standard problem (DSP) using the ATLAS was proposed for transferring the database of the integral effect test to Korean nuclear researchers and developing the safety analysis methodology of PWRs. The fourth DSP (DSP-04) exercise was performed during 2015–2017 with 15 participants (13 organizations), that are universities, government, and nuclear industries. In DSP-04, a top-slot break at the cold leg was chosen as the target scenario to resolve an issue about the effect of loop seal clearing and the reformation on the peak cladding temperature during the cold leg top-slot break LOCA for APR1400. The participants performed a code calculation for the experimental simulation and sensitivity studies for the enhancement of the code. This paper includes brief information about the experimental and major code assessment results.

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“…[4][5][6] Afterward, a series of DVI line break tests 7) were performed by varying the break size from 5 to 100% and, subsequently, a series of cold-leg break tests 8) were performed to include sensitivity tests on the break size, break location, and the emergency core cooling water injection configuration. These SBLOCA tests were performed to investigate the performance of the DVI method for ECC water delivery adopted for the APR1400 with the ATLAS.…”

Section: Introductionmentioning

confidence: 99%

Counterpart Tests of SBLOCA on the Effect of Break Location with the ATLAS: DVI Nozzle versus Cold-Leg Breaks

Park¹,

Choi²,

Cho³

et al. 2011

Journal of Nuclear Science and Technology

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Results from two integral effect tests were compared to discuss the effect of break location between the direct vessel injection (DVI) nozzle and cold leg during the small-break loss of coolant accident (SBLOCA) scenario. One is the SB-DVI-09 test for a 6-inch (50% break area of a DVI nozzle) DVI line break and the other is the SB-CL-06 test for an equivalent break size of cold leg. Both counterpart tests were performed with the same control logic and initial/boundary conditions except for different break locations of the DVI line and cold leg. Experimental results showed that the maximum heater surface temperature increased more with the broken DVI nozzle (SB-DVI-09) than with the broken cold leg (SB-CL-06) due to the delayed and simultaneous occurrence of the loop seal clearing and the momentary decrease in the collapsed water level in the core region.

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A SUMMARY OF 50^thOECD/NEA/CSNI INTERNATIONAL STANDARD PROBLEM EXERCISE (ISP-50)

Cited by 13 publications

References 6 publications

RELAP-7 Software Verification and Validation Plan - Requirements Traceability Matrix (RTM) Part 2: Code Assessment Strategy, Procedure, and RTM Update

RELAP-7 Software Verification and Validation Plan - Requirements Traceability Matrix (RTM) Part 2: Code Assessment Strategy, Procedure, and RTM Update

Comparison of Blind and Open Calculation Results for Top-Slot Break LOCA in Fourth ATLAS Domestic Standard Problem

Counterpart Tests of SBLOCA on the Effect of Break Location with the ATLAS: DVI Nozzle versus Cold-Leg Breaks

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A SUMMARY OF 50thOECD/NEA/CSNI INTERNATIONAL STANDARD PROBLEM EXERCISE (ISP-50)

Cited by 13 publications

References 6 publications

RELAP-7 Software Verification and Validation Plan - Requirements Traceability Matrix (RTM) Part 2: Code Assessment Strategy, Procedure, and RTM Update

RELAP-7 Software Verification and Validation Plan - Requirements Traceability Matrix (RTM) Part 2: Code Assessment Strategy, Procedure, and RTM Update

Comparison of Blind and Open Calculation Results for Top-Slot Break LOCA in Fourth ATLAS Domestic Standard Problem

Counterpart Tests of SBLOCA on the Effect of Break Location with the ATLAS: DVI Nozzle versus Cold-Leg Breaks

Contact Info

Product

Resources

About

A SUMMARY OF 50^thOECD/NEA/CSNI INTERNATIONAL STANDARD PROBLEM EXERCISE (ISP-50)