Method for operating a nuclear reactor

Details Method for operating a nuclear reactor Method for operating a nuclear reactor

2011-06-28

2011-06-28

Mondt, Johannes P (Department: 3663)

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By movement of control element or by release of neutron...

C376S219000, C376S236000, C376S260000, C376S267000

Reexamination Certificate

active

07970093

ABSTRACT:
The invention refers to a method for operating a nuclear light water reactor during an operation cycle including a cardinal cycle and a number of successive control rod cycles. The reactor includes a plurality of elongated fuel units containing a nuclear fuel in the form a fissible material, a burnable absorber, and a plurality of control rods introduceable in a respective control rod position. Substantially all control rods are introduced in the core before the reactor is started and an operation cycle is initiated. The reactor is operated during the cardinal cycle with a first control rod configuration with a first group of control rods at least partly introduced and the remaining control rods extracted. The reactor is operated during the subsequent control rod cycles with a respective control rod configuration which each includes a different group of control rods at least partly introduced, wherein the cardinal cycle is substantially longer than each of the subsequent control rod cycles.

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