Sidharta, Nicholas and Arjuna, Almanzo (2021) Study on the effect of various burnable poisons on pebble bed reactor with OTTO fuelling schemes using Serpent 2 Monte Carlo code. In: 6th International Energy Conference (Astechnova 2021).
Sidharta_2021_IOP_Conf._Ser.__Earth_Environ._Sci._927_012018.pdf
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Abstract
Pebble bed reactor with a once-through-then-out fuelling scheme has the advantage of simplifying the refueling system. However, the core upper-level power density is relatively higher than the bottom, producing an asymmetric core axial power distribution. Several burnable poison (BP) configurations are used to flatten the peak power density and improve power distribution while suppressing the excess core reactivity at the beginning of the burnup cycle. This study uses HTR-PM, China's pebble bed reactor core, to simulate several burnable poison (BP) configurations. Serpent 2 coupled with Octave and a discrete element method simulation is used to model and simulate the pebble bed reactor core. It is found that erbium needs a large volumetric fraction in either QUADRISO or distributed BP to perform well. On the other hand, gadolinium and boron need a smaller volumetric fraction but perform worse in radial power distribution criteria in the fuel sphere. This study aims to verify the effect of BP added fuel pebbles on an OTTO refueling scheme HTR-PM core axial power distribution and excess reactivity.
Item Type: | Conference or Workshop Item (Paper) |
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Additional Information: | Library Dosen |
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > Nuclear engineering. Atomic power |
Divisions: | Faculty of Engineering > Nuclear and Physics Engineering Department |
Depositing User: | Sri JUNANDI |
Date Deposited: | 25 Sep 2024 07:19 |
Last Modified: | 25 Sep 2024 07:19 |
URI: | https://ir.lib.ugm.ac.id/id/eprint/4997 |