National Energy Key Laboratory of Nuclear Power Software NEKLS

Beijing, China

National Energy Key Laboratory of Nuclear Power Software NEKLS

Beijing, China

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Chen Y.,National Energy Key Laboratory of Nuclear Power Software NEKLS | Yu H.,National Energy Key Laboratory of Nuclear Power Software NEKLS | Li S.,National Energy Key Laboratory of Nuclear Power Software NEKLS | Liu Z.,National Energy Key Laboratory of Nuclear Power Software NEKLS | Yan Y.,National Energy Key Laboratory of Nuclear Power Software NEKLS
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2013 | Year: 2013

LATC is an essential part of COSINE code package, which stands for COre and System INtegrated Engine for design and analysis. LATC performs 2D multi-group assembly transport calculation and generates few group constants and the required cross-section data for CORE, the core simulator code. LATC is designed to have the capability of modeling the API 000 series assemblies. The development is a continuously improved process. Currently, LATC uses well-proven technology to achieve the key functions. In the next stage, more advanced methods and modules will be implemented. At present, WIMS and WIMS improved format library could be read in LATC code. For resonance calculation, equivalent relation with rational approximations is utilized. For transport calculation, two options are available. One choice is collision probability method in cell homogenization while discrete coordinate method in assembly homogenization, the other is method of characteristics in assembly homogenization directly. For depletion calculation, an improved linear rate "constant power" depletion method has been developed.

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