VVER-1000 MOX Core Computational Benchmark analysis using indigenous codes EXCEL, TRIHEX-FA and HEXPIN

Application of CNUREAS and MCNP5 codes to VVER-1000 MOX Core Computational Benchmark

“…The comparison revealed that the difference is around 2.5%. Since the results of Thilagam et al (2009) are compatible with "Benchmark Mean" except state 6, it can be said that there could be limitations in diffusion theory codes when strong absorber exists in the system.…”

“…Therefore CNUREAS result of state 6 cannot be compared. In order to fully test the capability of CNUREAS code, the results of Thilagam et al (2009) were used to evaluate CNUREAS result for state 6. The comparison revealed that the difference is around 2.5%.…”

“…Two of the solutions are based on continuous energy Monte Carlo methods (MCNP4C (RSICC, 2000) and MCU (Kalugin et al, 2015)), while the other solution is based on collision probability (or similar) method (RADAR). Thilagam et al (2009) performed same calculations with different codes and Thilagam et al (2010) used benchmark results to perform inter comparison of evaluated data.…”

Development and Validation of Coupled Dynamics Code 'Trikin' for Vver Reactors

“…9 to12. It has been investigated and demonstrated that each hexagonal FA must be subdivided into 24 triangles for reasonable accuracy [13]. Therefore, in TRIKIN, the core physics computations have been made consistent to a fixed grid involving 24 triangles per FA.…”