Conference Proceedings Paper
OECD International Standard Problem ISP-50 on the ATLAS DVI Line Break Test
NURETH-14 - 2011 September 25-30
Ki-Yong Choi (Korea Atomic Energy Research Institute)
Won-Pil Baek (Korea Atomic Energy Research Institute)
Hyun-Sik Park (Korea Atomic Energy Research Institute)
Seok Cho (Korea Atomic Energy Research Institute)
Kyoung-Ho Kang (Korea Atomic Energy Research Institute)
Yeon-Sik Kim (Korea Atomic Energy Research Institute)
An international standard problem (ISP) exercise, ISP-50 was progressed with the Advanced
Thermal-Hydraulic Test Loop for Accident Simulation (ATLAS) integral effect test results on
50% break of the cross section of a Direct Vessel Injection (DVI) nozzle of the APR1400. This
exercise consisted of two serial phases: blind and open calculation. In the open calculation, a
total of 16 calculations was collected from 11 organizations and seven leading safety analysis
codes were used, including APROS, ATHLET, KORSAR, MARS-KS, RELAP5/MOD3,
CATHARE, and TRACE. Local 3-D phenomena such as a down-comer mixing, a radial peak
cladding temperature (PCT) distribution, and an asymmetric inventory distribution were
highlighted in this exercise. Overall progress of the ISP-50 is outlined in this paper.
Individual Conference-Paper Copies (Electronic Where Available):
- For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
- For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
- Contact the CNS office to order reprints.