Impact of New Nuclear Data Libraries on Small Sized Long Life CANDLE HTGR Design Parameters

International Conference on Advances in Nuclear Science and Engineering 2015

Liem, Peng Hong^1 ; Hartanto, Donny^2 ; Tran, Hoai Nam^3

Nippon Advanced Information Service (NAIS Co., Inc.), Scientific Computational Division, 416 Muramatsu, Tokaimura

Ibaraki, Japan^1

Fast Reactor Design Division, Korea Atomic Energy Research Institute (KAERI), 111, Daedeok-daero 989, Yuseong-gu, Daejeon

34057, Korea, Republic of^2

Institute of Research and Development, Duy Tan University, K7/25 Quang Truang, Da Nang, Viet Nam^3

关键词: Design parameters;    Discharge burn-up;    Effective multiplication factor;    Equilibrium core;    Maximum power density;    Multiplication factor;    Nuclear data library;    Thorium fuel cycles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/799/1/012005/pdf
DOI  :  10.1088/1742-6596/799/1/012005

来源: IOP

【 摘 要 】

The impact of new evaluated nuclear data libraries (JENDL-4.0, ENDF/B-VII.0 and JEFF-3.1) on the core characteristics of small-sized long-life CANDLE High Temperature Gas-Cooled Reactors (HTGRs) with uranium and thorium fuel cycles was investigated. The most important parameters of the CANDLE core characteristics investigated here covered (1) infinite multiplication factor of the fresh fuel containing burnable poison, (2) the effective multiplication factor of the equilibrium core, (3) the moving velocity of the burning region, (4) the attained discharge burnup, and (5) the maximum power density. The reference case was taken from the current JENDL-3.3 results. For the uranium fuel cycle, the impact of the new libraries was small, while significant impact was found for thorium fuel cycle. The findings indicated the needs of more accurate nuclear data libraries for nuclides involved in thorium fuel cycle in the future.