Sensitivity on delayed neutron parameters in the two-delayed-neutron-group point reactor model for a pulsed reactivity excursion

Martijn Tholen, Gert Van den Eynde

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    This paper uses simulations in Python to examine how different parameters affect the point kinetic equations. The study focuses on the neutron population and how it responds to variations in variables such as delayed neutron fraction, decay constants and inserted reactivity. The findings show that these parameters have a direct effect on the neutron population, with larger fractions of the delayed neutrons of the lowest decay constant leading to lower neutron populations. The neutron population is affected differently by decay constants, the greater the difference between the decay constants, the smaller the neutron population. Inserted reactivity is an important factor in how the population behaves. The neutron population increases as the positive reactivity increases. The derivatives confirm these insights. The results contribute to our knowledge of reactor dynamics and provide guidelines for safe and effective reactor control. The understanding of nuclear reactor behavior and optimization can be furthered by examining more parameters in future research.
    Original languageEnglish
    Awarding Institution
    • KU Leuven
    • Uhasselt - Hasselt University
    • Van den Eynde, Gert, Supervisor
    Date of Award15 Sep 2023
    StatePublished - Sep 2023

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