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Novel homogeneous burnable poisons in pressurized water reactor ceramic fuel

  • Dodd, Brandon (Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University) ;
  • Britt, Taylor (Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University) ;
  • Lloyd, Cody (Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University) ;
  • Shah, Manit (Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University) ;
  • Goddard, Braden (Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University)
  • Received : 2019.08.29
  • Accepted : 2020.05.22
  • Published : 2020.12.25

Abstract

Due to excess reactivity, fresh nuclear fuel often contains burnable poisons. This research looks at six different burnable poisons and their impacts on reactivity, material attractiveness, and waste management. An MCNP simulation of a PWR fuel pin was performed with a fuel burnup of 60 GWd/MTHM to determine when each burnable poison fuel type would decrease below a k of 1. For determining the plutonium material attractiveness in each burnable poison fuel type, the plutonium isotopic content of the used fuel was evaluated using Bathke's Figure of Merit formula. For the waste management analysis, the thermal output of each burnable poison fuel type was determined through ORIGEN decay simulations at 100 and 300 years after being discharged from the core. The performance of all six burnable poisons varied over the three criteria considered and no single burnable poison performed best in all three considerations.

Keywords

References

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