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Journal of Nuclear Engineering, Volume 3, Issue 1

2022 March - 6 articles

Cover Story: To validate computational tools and associated nuclear data that are used for design and safety analyses of spent nuclear fuel transportation, storage, and repository systems, benchmarks based on experimental data for nuclide inventories are essential. Challenges in assessing the impact of modeling assumptions and uncertainties on code-predicted values for a BWR nuclide inventory benchmark are discussed. The focus is on how to address missing data in fuel design and operating conditions that are important for adequately simulating the nuclear transmutation and decay processes in fuel during irradiation in the reactor. The effect of modeling assumptions and uncertainties in modeling parameters on the calculated nuclide inventory is analyzed and quantified through computational models developed using capabilities in the SCALE code system. View this paper
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Articles (6)

  • Article
  • Open Access
1 Citations
3,491 Views
12 Pages

MSR Simulation with cGEMS: Fission Product Release and Aerosol Formation

  • Sergii Nichenko,
  • Jarmo Kalilainen and
  • Terttaliisa Lind

17 March 2022

The release of fission products and fuel materials from a molten-salt fast-reactor fuel in hypothetical accident conditions was investigated. The molten-salt fast reactor in this investigation features a fast neutron spectrum, operating in the thoriu...

  • Article
  • Open Access
2 Citations
2,745 Views
33 Pages

24 February 2022

This work illustrates the application of the fourth-order comprehensive sensitivity analysis methodology for nonlinear systems (abbreviated as “4th-CASAM-N”), which enables the efficient computation of exactly determined 1st-, 2nd-, 3rd-,...

  • Article
  • Open Access
5 Citations
2,951 Views
35 Pages

23 February 2022

This work presents the fourth-order comprehensive sensitivity analysis methodology for nonlinear systems (abbreviated as “4th-CASAM-N”) for exactly and efficiently computing the first-, second-, third-, and fourth-order functional derivat...

  • Article
  • Open Access
5 Citations
3,917 Views
19 Pages

31 January 2022

This work discusses challenges and approaches to uncertainty analyses associated with the development of a nuclide inventory benchmark for fuel irradiated in a boiling water reactor. The benchmark under consideration is being developed based on exper...

  • Article
  • Open Access
5 Citations
2,959 Views
16 Pages

21 January 2022

This work quantifies the impact of the most important 4th-order sensitivities of the leakage response of a polyethylene-reflected plutonium (PERP) reactor physics benchmark with respect to the benchmark’s 180 group-averaged microscopic total cr...

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J. Nucl. Eng. - ISSN 2673-4362