16.2 - Severe Accident Analysis (RRC-B) - EDF Hinkley Point

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SUB-CHAPTER : 16.2PRE-CONSTRUCTION SAFETY REPORTCHAPTER 16: RISK REDUCTION AND SEVEREACCIDENT ANALYSESPAGE : 175 / 295Document ID.No.UKEPR-0002-162 Issue 04SUB-SECTION 16.2.2.4 – FIGURE 3Histories of ablation front progression in the axial direction for the various casesanalysed in the parametric study [Ref]0.50.450.4Layer InversionSecond PourAxial Ablation Depth, m0.350.30.250.20.150.10.05Failure of RPV BottomLayer Inversion40%E-L40%L-L60%E-L60%L-LStandard-30-L80%E-LStandard-40-L80%L-LStandard-70-L80%E-MStandard-40-M80%L-M40%E-L40%L-L60%E-L60%L-L80%E-L80%L-L80%E-M80%L-M00 1000 2000 2000 4000 3000 60004000 8000 5000 6000 10000 7000 12000 8000Interaction Time, s
SUB-CHAPTER : 16.2PRE-CONSTRUCTION SAFETY REPORTCHAPTER 16: RISK REDUCTION AND SEVEREACCIDENT ANALYSESPAGE : 176 / 295Document ID.No.UKEPR-0002-162 Issue 04SUB-SECTION 16.2.2.4 – FIGURE 4Temperature of the RPV-bottom as a function of ablation depth (a) and of decomposedconcrete (b) for the various cases of the parametric study [Ref]150014001300Failure Temperature of RPV BottomRPV Temperature, °C12001100100090080070060040%E-L40%L-L60%E-L60%L-L80%E-L80%L-L80%E-M80%L-M5000 0.1 0.2 0.3 0.4 0.5Axial Ablation Depth, m(a)150014001300Failure Temperature of RPV BottomRPV Temperature, °C12001100100090080070060040%E-L40%L-L60%E-L60%L-L80%E-L80%L-L80%E-M80%L-M5000 25000 50000 75000 100000Ablated Mass of Concrete, kg(b)
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16.2 - Severe Accident Analysis (RRC-B) - EDF Hinkley Point

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