Method of synthesizing reactor core power distribution for reactor core protection system based on in-core instrument signal using ordinary kriging method

Abstract

Proposed is a method of synthesizing reactor core power distribution using an in-core instrument in a reactor core protection system, that is, a method of synthesizing reactor core power distribution for a reactor core protection system based on an in-core instrument signal using an ordinary kriging method. According to the present disclosure, a power of all fuel assemblies in a reactor core is calculated from powers of fuel assemblies where in-core instruments are located using the ordinary kriging methodology, and a hot-pin power distribution of each fuel assembly is synthesized from the power of all fuel assemblies calculated, whereby there is an effect that more accurate hot-pin axial power distribution, rather than pseudo hot-pin axial power distribution, may be synthesized.

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