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

More documents

Recommendations

Info

SUB-CHAPTER : 16.2PRE-CONSTRUCTION SAFETY REPORTCHAPTER 16: RISK REDUCTION AND SEVEREACCIDENT ANALYSESPAGE : 47 / 295Document ID.No.UKEPR-0002-162 Issue 04SECTION 16.2.2.1 - TABLE 2MAAP4 Data – Assumptions for severe accident studiesCore characteristics and main steel mass In Vessel [Ref]The EPR core has 241 fuel bundles (17x17) and 89 control rod clusters (each containing 24absorber rods). Each bundle contains 264 fuels rods, 25 guide tubes for control rods. Themass of Ag is 3,167 kg, mass of In is 594 kg and mass of Cd is 198 kg. This masscorresponds to the total amount of Ag-In-Cd and B4C in the EPR hybrid control rods.The total mass of UO 2 is 140,800 kg (fuel pellets).Zircaloy is located in the fuel cladding, the guide tubes for control rods, the instrumentationtubes and the grids.The main contributor to hydrogen production is the Zircaloy. Steel also may be an additionalsource of H 2 production.Zircaloy inventory (kg) Fuel cladding Guide tubes Grids Top and bottom plugsActive part 29925 3001 1504Non-active part 2494 250 364 554Hydrogen production potential as function of Zircaloy masses:Active fuel clad Total fuel clad Active Total ZircaloyZircaloy (kg) 29925 32419 34430 38092H2 (kg) 1312 1422 1510 1684Main steel mass in the vessel:– Core barrel below the elevation of top of the core: 32,600 kg– Core barrel above the elevation of top of the core: 24,100 kg– Heavy reflectors: 94,300 kg– Core upper plate: 4,000 kg– Core support plate: 24,300 kg– Vessel: 1,150 kg/m²
SUB-CHAPTER : 16.2PRE-CONSTRUCTION SAFETY REPORTCHAPTER 16: RISK REDUCTION AND SEVEREACCIDENT ANALYSESPAGE : 48 / 295Document ID.No.UKEPR-0002-162 Issue 04SECTION 16.2.2.1 - TABLE 3MAAP4 Data – Assumptions for severe accident studiesMain Initial Conditions [Ref]RPC [RCS] pressurePRIMARY SYSTEM AND STEAM GENERATORS155 barAverage RPC [RCS] temperature 313°CSecondary side pressure78 barAverage secondary temperature 287°CMass of water in RPC [RCS], not including pressuriserMass of water in pressuriserMass of water in steam generator (secondary side)SG heat transfer area (5980 tubes/SG)Pressure of air in containmentInitial temperature of air in containmentMass of water in IRWSTCONTAINMENT269000 kg24800 kg4 x 81000 kg7960 m² (secondary side)/SG1 barTemperature of water in IRWST 42°C30°C in accessible part42°C in non accessible part2,066,000 kg
Page 1 and 2: Title: PCSR - Sub-chapter 16.2 - Se
Page 3 and 4: Title: PCSR - Sub-chapter 16.2 - Se
Page 5 and 6: SUB-CHAPTER : 16.2PRE-CONSTRUCTION
Page 49: SUB-CHAPTER : 16.2PRE-CONSTRUCTION
Page 99 and 100: 14SUB-CHAPTER : 16.2PRE-CONSTRUCTIO
Page 101 and 102:
SUB-CHAPTER : 16.2PRE-CONSTRUCTION
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
Page 279 and 280:
Page 281 and 282:
Page 283 and 284:
Page 285 and 286:
Page 287 and 288:
Page 289 and 290:
Page 291 and 292:
Page 293 and 294:
Page 295 and 296:
Page 297 and 298:
show all

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

Create successful ePaper yourself

Delete template?

Save as template?