Monte Carlo fuel burnup analyses of the Accelerator-Driven Subcritical systems
| Autor: | Yan Cao, Yousry Gohar |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Liquid metal
Fission 020209 energy Nuclear engineering Monte Carlo method 02 engineering and technology 01 natural sciences Spent nuclear fuel 010305 fluids & plasmas Nuclear Energy and Engineering Conceptual design 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Slurry Environmental science Neutron source Burnup |
| Zdroj: | Annals of Nuclear Energy. 131:297-304 |
| ISSN: | 0306-4549 |
| Popis: | This paper describes the Monte Carlo fuel burnup analysis performed for the Argonne National Laboratory (ANL) Accelerator-Driven Subcritical (ADS) conceptual design. The ANL ADS conceptual design was developed to dispose of the 131 tons of Minor Actinides (MA) fuel of the current United States Spent Nuclear Fuel (SNF) inventory. It uses a neutron source from 1 GeV 25 MW proton beam with the liquid lead target to drive the subcritical fission assembly. It utilizes the liquid metal slurry fuel concept to load the MAs fuel. The subcritical fission assembly has a neutron multiplication factor of 0.98. The total fission power generated in the system is about 2.67 GW. The system is designed to operate for 35 full power years. Monte Carlo fuel burnup analyses were performed to calculate the amount of MAs consumed by the ANL ADS conceptual design. The MCNP6 computer program was used to simulate the high energy physics of the protons striking the liquid lead target for generating the neutron source. The MCB5 and SERPENT Monte Carlo burnup computer programs were used to simulate the fuel burnup during the ADS operation. In the ANL ADS conceptual configuration, the reactivity loss during the fuel burnup is compensated by adding fresh fuel into the subcritical assembly. In this paper, both batch and continuous fueling modes are examined. The fresh fuel particles are loaded into the slurry fuel carrier at the beginning of each burnup step of the batch-fueling mode and loaded continuously into the slurry fuel carrier during the operation in the continuous fueling mode. Monte Carlo fuel burnup analyses show that one ANL ADS conceptual design can consume about 25.7 tons of MAs fuel during the 35 full power years with the continuous fueling mode. About five units is required to dispose of the 131 tons of MAs. |
| Databáze: | OpenAIRE |
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