Solid Radioactive Waste Strategy Report.pdf - UK EPR

More documents

Recommendations

Info

EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 146 / 257 The concrete structure of the vault ensures the protection of fuel assemblies from external events and protects workers and local residents from irradiation. The sealed canisters and the closed wells prevent radioactive releases to the environment. In France, the CASCAD facility, designed for 50 years of interim storage, was the first to use natural convection to cool the storage wells where the canisters containing spent fuel are kept. FIGURE 57:CASCAD DRY STORAGE FACILITY: CANISTER LOADING This technology is also used in the Netherlands in COVRA’s Habog facility (see Figure 58). This facility accommodates not only fuel canisters but also glass canisters and intermediate level waste containers.
EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 147 / 257 FIGURE 58:GENERAL VIEW OF COVRA HABOG FACILITY, NETHERLANDS A multipurpose interim storage facility using vaults has been designed for ENRESA, in Spain. This facility provides storage for spent fuel (with characteristics similar to EPR fuel) in vaults cooled by natural air ventilation and also provides separate storage for solid waste stored in bunkers cooled by forced air ventilation. This type of multipurpose dry vault storage system offers a number of significant advantages including: · Multiple containment systems, with the sealed canister, the closed storage well and the building ventilation system all serving to prevent radioactive releases to the environment; · Safe and secure containment of spent fuel within the canister during any necessary handling operations. The canister also incorporates features to facilitate secure movement by overhead crane, thereby minimising the risk of a dropped load; · Passive cooling of stored spent fuel assemblies by natural air convection. The storage vault temperature is kept low so that the cladding temperature can be maintained under 380°C, even under extreme conditions.380°C, even under extreme conditions.
Page 1 and 2:
A 2008-11-26 Sarah Greenwood Gary C
Page 3 and 4:
EPR UK N° NESH-G/2008/en/0123 REV.
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
10 13 16 19 22 46 49 EPR UK N° NES
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96: EPR UK N° NESH-G/2008/en/0123 REV.
Page 145: EPR UK N° NESH-G/2008/en/0123 REV.
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:
show all

Solid Radioactive Waste Strategy Report.pdf - UK EPR

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?