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학술저널
저자정보
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한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제45권 제7호
발행연도
2013.1
수록면
871 - 894 (24page)

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KAERI (Korea Atomic Energy Research Institute) has been operating an integral effect test facility, the Advanced Thermal-Hydraulic Test Loop for Accident Simulation (ATLAS), for transient and accident simulations of advanced pressurized waterreactors (PWRs). Using ATLAS, a high-quality integral effect test database has been established for major design basisaccidents of the APR1400 plant. A Domestic Standard Problem (DSP) exercise using the ATLAS database was promoted totransfer the database to domestic nuclear industries and contribute to improving a safety analysis methodology for PWRs. This 2nd ATLAS DSP (DSP-02) exercise aims at an effective utilization of an integral effect database obtained from ATLAS,the establishment of a cooperation framework among the domestic nuclear industry, a better understanding of the thermalhydraulic phenomena, and an investigation into the possible limitation of the existing best-estimate safety analysis codes. Asmall break loss of coolant accident with a 6-inch break at the cold leg was determined as a target scenario by considering itstechnical importance and by incorporating interests from participants. This DSP exercise was performed in an open calculationenvironment where the integral effect test data was open to participants prior to the code calculations. This paper includesmajor information of the DSP-02 exercise as well as comparison results between the calculations and the experimental data.

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