A Coupled Calculation Suite for Atucha II Operational Transients Analysis
Actual relative neutronic power error versus time at full power. Illustration of the effects of proposed changes in the control logic to reduce the control rods movements rate. (a) Original control design. (b) Time delay inserted in the rod set point generator. (c) Delay inserted and azimuthal power distribution control suppresed. (d) Modified time delay and azimuthal power distribution activated.
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