Convergence Analysis Between the Experimental Data and Calculation Results of the Spent Fuel Burnup in the Pressurized Water Reactor

Vitaliy Galchenko, Vladyslav Soloviov

Abstract


Using a burnup credit as safety criteria in a spent nuclear fuel (SNF) criticality calculations required accuracy isotopes composition preparation approach. Comparisons between calculation results and existing experimental data are one effective way for this calculation approach development. Moreover some studies devoted to determination of the SNF isotopes composition do not provide the information about the fuel irradiation history, cooling time at all. In this case some complicacy can appear during initial data preparation and calculation results interpretation.

In present work the verify calculations for 137Cs concentration proposed dependence were made use experimental data for several pressurize water reactor (PWR) and boiling water reactor (BWR) spent fuel assembly. The calculations of the 137Cs concentration using the proposed formula have a good agreement with the experimental data, which is available to the authors.

Keywords


Spent Nuclear Fuel (SNF); Monte-Carlo criticality calculation; Burnup credit; SCALE computer codes system; Cs-137 concentration

References


V.V. Galchenko, V.L. Diemokhin. Mathematical dependence for the 137Cs concentration in spent nuclear fuel and its using for experimental data processing. // Nuclear physics and atomic energy. Vol. 14, #2 2013. p. 142-149.

O.W. Hermann, M.D. DeHart. Validation of SCALE (SAS2H) isotopic predictions for BWR spent fuel // ORNL/TM-13315. – September 1998.

David R. Hamrin et al. SCALE: A modular code system for performing standardized computer analyses for licensing evaluation // ORNL/TM –2005/39. – 2005. – Version 5, Vols. I –III.

O.W. Hermann, C.V. Parks. SAS2H: A Coupled One-Dimensional Depletion and Shielding Analysis Module. // NUREG/CR-0200, Revision 6, (ORNL/NUREG/CSD-2/V2/R6), Oak Ridge National Laboratory, September 1998.

M.D. DeHart. TRITON: A two-dimensional depletion sequence for characterization of spent nuclear fuel. // NUREG/CR-0200, Revision 7, (ORNL/NUREG/CSD-2/ R7), Oak Ridge National Laboratory, May 2004.


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