Solid Radioactive Waste Strategy Report.pdf - UK EPR

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EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 242 / 257 FIGURE 103: VAULT STORAGE BUILDING – SIDE ELEVATION FIGURE 104: VAULT STORAGE BUILDING – PLAN OF A FACILITY SERVING MORE THAN ONE SITE
EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 243 / 257 13.3.4.2.3Building Operations There will be three broad operational periods for the spent fuel storage facility. The first period will be when spent fuel is being received and placed into the storage vaults. This period will start within 10 years of the reactor start date, since the fuel will need to be stored in the reactor cooling pool for up to 10 years before it can enter dry interim storage. This first period will finish about 10 years after the reactor ceases operations and the last batch of fuel has completed its initial cooling period. (Note, the reactor is designed for an operational lifetime of 60 years.) There will then be a period when there are no loading or unloading operations, although monitoring of storage conditions will continue. This is expected to last 30 or 40 years, depending upon developments in the UK radioactive waste strategy and the availability of facilities for further storage or disposal. The final period is when the stored fuel assemblies are retrieved and exported to another facility. After this the facility will be decommissioned. The facility is therefore expected to have an operational life of around 100 years. An EPR core reactor has 241 fuel assemblies; it is assumed core renewal is completed every 18 months, with about one third of the fuel assemblies being replaced each time. The baseline design assumption for the storage facility is that it will serve only a single reactor with an average of 3400 fuel assemblies requiring storage. Discharges arising from the ventilation of building rooms (i.e. personnel access areas and fuel handling cells) will be filtered. Mode of Operations Operations in the transport container reception, preparation and shipping building are performed manually by operators, using overhead cranes for handling and a protective platform for transport container preparation operations before docking. In the process building, all operations are performed remotely from a centralised control room, namely: · Transport container docking/undocking operations; · Spent fuel unloading operations and identification; · Canister loading and transfer for storage in the vaults.
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A 2008-11-26 Sarah Greenwood Gary C
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Solid Radioactive Waste Strategy Report.pdf - UK EPR

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