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Fuel Assembly Calculations Using the Method of Discrete Ordinates

Andreas Pautz, Ulrich Hesse, Winfried Zwermann, Siegfried Langenbuch

Nuclear Science and Engineering / Volume 149 / Number 2 / Pages 197-210

February 2005

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The discrete ordinates code DORT is employed to treat pin cell and fuel assembly configurations in two spatial dimensions. Despite DORT's restriction to regular (i.e., Cartesian) coordinates, we demonstrate its ability to calculate accurate pin power distributions and eigenvalues of typical reactor fuel lattices. Several numerical experiments have been performed to investigate the effects of spatial, angular, and energy discretization and to quantify their impact on the results. DORT is also used to homogenize and collapse cross-section sets within the framework of the coupled transport/burnup code system KENOREST.

 
 
 
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