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Volume 32 Issue 3
Mar.  2025
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XIAO Hongguang, ZHU Bo, ZHANG Fan. Simulation on In-Containment Source Term and Virtual Accident Scene of Large-Break LOCA[J]. Nuclear Power Engineering, 2011, 32(3): 25-28,42.
Citation: XIAO Hongguang, ZHU Bo, ZHANG Fan. Simulation on In-Containment Source Term and Virtual Accident Scene of Large-Break LOCA[J]. Nuclear Power Engineering, 2011, 32(3): 25-28,42.

Simulation on In-Containment Source Term and Virtual Accident Scene of Large-Break LOCA

  • Received Date: 2011-03-22
    Available Online: 2025-03-08
  • The variation of the concentrations of aerosol 131I,airborne 137Cs and 133Xe under 3 different disposal measures,i.e.,without spray and emergency ventilation,with spray but without emergency ventilation,and with spray and emergency ventilation,was analyzed after a large-break LOCA for the small-scale experiment reactor.The results showed that the spray played an effective role in reducing the radioactive concentration of 131I and 137Cs,but almost had no effect on the inert gas 133Xe.Under the condition of this study,when the security system failed,the radioactive material would escape once the core melt.Finally,by the virtual simulation of the accident,the variation of the nuclide radioactive concentration in the whole containment was expressed intuitively in real-time and the combination of the accurate simulation data and the visual interface was achieved in this paper.

     

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