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    • 3. 发明公开
    • INTER-MODULE FUEL SHUFFLING
    • EP4235697A2
    • 2023-08-30
    • EP23177011.6
    • 2017-03-01
    • NuScale Power, LLC
    • KITTO, AllysonINGERSOLL, DanielREYES, Jose, N., Jr.
    • G21D1/00
    • A method of loading fuel assemblies in a fuel array within a reactor core is described. The fuel array has a first section a second section and a third section. The method comprises:
      assembling a first fuel configuration in which:
      the first section comprises a plurality of first fuel assemblies (A 0 ), wherein the first fuel assemblies have a first reactivity;
      the second section comprises a plurality of second fuel assemblies (B), wherein the second fuel assemblies have a second reactivity less than the first reactivity; and
      the third section comprises a plurality of third fuel assemblies (C), wherein the third fuel assemblies have a third reactivity less than the second reactivity;

      operating the reactor core with the first fuel configuration; and
      after operating the reactor core with the first fuel configuration, assembling a second fuel configuration in which-
      the first section comprises a plurality of fourth fuel assemblies (A 1 ), wherein the fourth fuel assemblies have a fourth reactivity;
      the second section comprises the first fuel assemblies, wherein the first fuel assemblies have a fifth reactivity less than the fourth reactivity; and
      the third section comprises the second fuel assemblies, wherein the second fuel assemblies have a sixth reactivity less than the fifth reactivity.