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유럽 원전설계요건 기반 EU-APR1400 중대사고 대처설계 개발
김용수(Yong Soo Kim),서정수(Jung Soo Suh),이종호(Jong Ho L) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
The containment integrity shall be ensured to protect the public from radiological release during severe accidents. The following SAs dedicated mitigation systems of EU-APR1400 are designed as 2-train safetygrade in accordance with the related European design requirements. The Rapid Depressurization System is designed to depressurize RCS before reactor vessel failure. The Hydrogen Mitigation System is designed to limit the average hydrogen concentration in containment below 10% by using about 40 PARs. The core catcher system is incorporated to prevent the base-mat from interacting with the molten corium. The decay heat of molten corium is removed by natural circulation of the flooded water supplied from the IRWST. The Severe Accidents dedicated CSS is incorporated to ensure the heat removal from containment during SAs. The Containment Filtered Vent System is adopted to protect containment against non-condensable gases about 24 hours following the onset of core damage.