Speaker
Description
The Breed-and-Burn reactor maximizes uranium utilization due to use of depleted or natural uranium and breeds fissile fuels while burning them. For this design, neutron economy is necessary to be high during core operation to achieve critical core. It can be accomplished by locating fuels with large neutron multiplication factors in the high neutron flux region by appropriate shuffling schemes.
Our previous analysis showed that the small power (750 MWe) Rotational Fuel-Shuffling Breed-and-Burn reactor with Silicide fuel and Sodium coolant (RFBB-SS) core without considering fuel assembly (FA) duct and control rod assemblies (CRAs) can operate at critical condition and can sustain the breed-and burn operating mode.
The objective of the present study is to clarify the impact of several parameters on burnup performance in practical core of RFBB-SS including FA duct and CRAs by conducting burnup analysis using Monte Carlo SERPENT code. By the analysis, the impact of the parameters on the criticality of the core in the equilibrium state was clarified. As a result, small practical RFBB-SS core loaded with fuel of 85 TD, 180 cm in height, 55 FAs per one of sixth core, and 700 days of shuffling interval can operate in critical condition.
| Country OR International Organization | Mongolia |
|---|---|
| Email address | sodmaa1@num.edu.mn |
| Confirm that the work is original and has not been published anywhere else | Yes |
