By Larin A. A.

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Extra info for A Boundary Value Problem for a Second-Order Singular Elliptic Equation in a Sector on the Plane

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At the end, the National Evaluation Committee will propose to the Parliament, through a " scientific statement " a solution for the management of ultimate waste in France. The decision then will be made by French policy makers as to the preferred option for the HLW final disposal. 7. CONCLUSION As can be seen from the paper, the French strategy in spent fuel management has been focusing on recycling for long time. Thanks to this strategy, a strong industry has been developed, able to serve not only French needs, but also international needs even when the supporting policy is not consistent with the French one.

Studies showed that gains should be really significant (for instance, about 6,700 tHM in the 900 MW PWRs). Such reracking would also be possible at La Hague. 2. MOX loading As explained sooner in this paper, many EdF's reactors were initially designed to accept 30% of MOX fuel in the core, and 16 are licensed to do it at present. The loading of these reactors is on progress, the rhythm being driven by the MOX fuel production rate. Two new reactors have been loaded in the first half of 1997 (Tricastin 4 and Gravelines 1), so that 12 reactors are presently loaded with MOX.

Fig. 3 shows the corresponding development in the average discharge burnups of the Siemens reload fuel assemblies most frequently supplied for BWRs and PWRs. It can be concluded from this figure that, from the point in time at which a sharp rise was experienced in specific disposal costs, 34 higher burnups enabled the mass of fuel requiring disposal to be reduced by approximately 28% in the case of PWRs and even by around 42% in the case of BWRs. This also explains how it has been possible to achieve continual reductions in fuel cycle costs per kWh since the mid-1980s, in spite of disposal costs that continue to rise.

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A Boundary Value Problem for a Second-Order Singular by Larin A. A.
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