E3S Web of Conferences (Jan 2020)

Simulation Of Fuel Ball Dimensional Size And Uranium Enhancement For High Temperature Reactor

  • E. Setiawati,
  • Z. Arifin,
  • N.A.K Umiati,
  • S. Juliawan,
  • F Arianto,
  • A. Margiantono

DOI
https://doi.org/10.1051/e3sconf/202020210001
Journal volume & issue
Vol. 202
p. 10001

Abstract

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The purpose of this study was to examine the combined effect of enriching U-235 fuel and fuel fingers (Kernell) to determine its criticality (Keff). In this study, simulation of HTR (High Temperature Reactor) type reactors using MCNPX (Monte Carlo N eXtended Particles). The fuel used is UO2 which has a density of 10.4 gr / cm3, with impurity using 4 ppm Boron atom with Atomic B-10 fraction of 80.1% and B-11 of 19.9%. The variation of enrichment used is 7% to 15% and the fuel radius (Kernell) ranges from 160 µm to 340 µm. From the results, it was obtained that the optimum Keff occurs at 7% enrichment and the radius of the fuel of 310 µm was 1.01236.