TY - EJOUR
AU - Zuhair
AU - Luthfi, Wahid
AU - Hartini, Entin
AU - Sriyono
AU - Suwoto
AU - Deswandri
PY - 2024
DA - May
TI - MCNP Performance on Neutronic Calculation of VERA Benchmark Cases
T2 - Journal of Theoretical and Applied Physics
VL - 18
L1 - https://oiccpress.com/journal-of-theoretical-and-applied-physics/article/mcnp-performance-on-neutronic-calculation-of-vera-benchmark-cases/
DO - 10.57647/j.jtap.2024.1803.41
N2 - VERA benchmark cases have been introduced by ORNL and detailed guidelines have been provided including the burnup chain data for a depletion analysis. The purpose of this paper was to analyze the performance of MCNP Monte Carlo code using VERA benchmark cases. Research on the VERA benchmark cases become important because its results will be useful for designing SMRs planned in the country. The VERA 2B and VERA 2P were selected as a representation for a typical fuel assembly of LWR configurations. The kinf MCNP calculations show a good agreement with the MCS and STREAM predictions at the Beginning of Cycle (BOC), Middle (MOC), and End (EOC). The kinf value at BOC calculated using MCNP for VERA 2B case shows a good agreement compared to KENO, Serpent, and OpenMC with a difference of less than 60 pcm while for VERA 2P case with a difference of less than 90 pcm. Doppler Temperature of reactivity Coefficient (DTC) and Moderator Temperature (MTC) results were negative and both became more negative as fuel burnup increased. The βeff values of both cases were close to 670 pcm during BOC since both cases use 235U fissile nuclear material. The 239Pu production in VERA 2B was higher than 2P since higher 238U in 2B and 24 pins of mixed lower enrichment and gadolinium in 2P lowers its heavy metal loading followed by the neutron spectrum shifting. It can be concluded that these results can be used in the development of computational performance for overall core analysis to strengthen the basic design of the SMR to be built in Indonesia.
IS - 3
PB - OICC Press
KW - VERA benchmark cases, MCNP, ENDF/B-VII.1, Criticality 
EN -