engleski

Demonstration of the Compact Depletion Models for Burnup Calculations

We describe a compact depletion model for reactor burnup calculations employing dynamically generated pseudo nuclides in transmutation chains. The model uses microscopic cross sections and number densities of pseudo nuclides calculated by fitting the evolution of pseudo nuclides to reaction rates of explicitly treated nuclides. Functionalisation of the effective yields and effective capture fractions with respect to core state variables is possible, based on results of detailed depletion calculations for scenarios typical for the fuel in a particular reactor. A compact depletion model is employed within the BOLD VENTURE code (Vondy, 1981) used for fuel management calculations of the Hoger Onderwijs Reactor (HOR) at the Interfaculty Reactor Institute (IRI) of the Delft University of Technology

burnup calculations; compact depletion model; HOR research reactor

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