Science and Technology of Nuclear Installations / 2012 / Article / Tab 2

Research Article

Simulation of the Lower Head Boiling Water Reactor Vessel in a Severe Accident

Table 2

Conditions of in-core molten pool during the accident sequence.

ParameterTime (s)
1,8001,9002,0002,1002,2002,3002,5002,590

Effective radius of molten pool (m)0.840.951.041.121.121.220.820.82
Temperature of molten pool (K)2,8702,8722,8972,9193,0032,99928522858
Volume of molten pool (m3)1.281.822.412.942.943.811.161.16
Total mass of UO2 in pool (kg)9,220 8,7708,770
Total mass of metallic Zr (kg)0131.0378.0378.0378.0989.0334.0335.0
Mass of liquefied material in partial liquefied porous debris (kg)6,0805,7806,4607,310 8,750
Total hydrogen production rate (kg/s)0.0830.02560.0150.007360.01910.002790.004840.0650

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