How to design a nuclear power plant reactor power control system ?

  • Thread starter reboothit
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Chemical shim is not used for short time scale reactivity control, such as that contemplated by your feedback control system.
That being generally true, there are however PWR control strategies that use boration/dilution to control the axial power distribution (=to counter Xenon oscillation in the tall PWR cores) indirectly by causing the control rods (which are automatically moved to keep core temperature at desired values) to move up or down. Not exactly "short scale", but anyway shorter than the normal reactivity compensation.
 

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