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Overview of core simulation methodologies for light water reactor analysis

YAMAMOTO Akio1 and ENDO Tomohiro1 

1 Graduate School of Industry,Nagoya University, Furo-cho, Chikusa-ku, Nagoya464-8603, Japan,
Abstract: The current in-core fuel management calculation methods provide a very efficient route to predict neutronics behavior of light water reactor (LWR) cores and their prediction accuracy for current generation LWRs is generally sufficient. However, since neutronics calculations for LWRs are based on various assumptions and simplifications, we should also recognize many implicit limitations that are “embedded” in current neutronics calculation methodologies. Continuous effort for improvement of core simulation methodologies is also discussed.
Keywords: neutronics calculation; fuel assembly calculation; core calculation; light water reactors; PWR
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