Conference Proceedings Paper
DEVELOPMENT OF MCATHAS SYSTEM OF COUPLED NEUTRONICS/THERMAL-HYDRAULICS IN SUPERCRITICAL WATER REACTOR
The 5th International Symposium on SuperCritical Water-cooled Reactors - 2011 March 13-16
Ping An (Nuclear Power Institute of China)
Dong Yao (Nuclear Power Institute of China)
The MCATHAS system of coupled neutronics/Thermal-hydraulics in supercritical water reactor is described, which considers the mutual influence between the obvious axial and radial evolution of material temperature, water density and the relative power distribution. This system can obtain the main neutronics and thermal parameters along with burn-up.
MCATHAS system is parallel processing coupling. The MCNP code is used for neutronics analysis with the continuous cross section library at any temperature calculated by interpolation algorithm; The sub-channel code ATHAS is for thermal-hydraulics analysis and the ORIGEN Code for burn-up calculation. We validate the code with the assembly of HPLWR and analyze the assembly SCLWR- H.
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