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Neutronic Parameter Analysis of Plate-Type Fueled TRIGA 2000 Reactor by MCNPX
- Source :
- Atom Indonesia, Vol 1, Iss 2, Pp 77-88 (2023)
- Publication Year :
- 2023
- Publisher :
- Center for Development of Nuclear Informatics, National Nuclear Energy Agency (BATAN), 2023.
-
Abstract
- A novel simulation to calculate the neutronic parameters of the TRIGA 2000 reactor using plate-type fuel has been performed. The plate fuel used was produced by the Indonesian Nuclear Industry (PT INUKI) with U3Si2-Al material. Neutronic parameters based on INUKI’s plate-type fuel dimension and the current TRIGA’s configuration were simulated using MCNPX. The simulation was performed by modeling the complete reactor’s configuration on a fresh fuel core state. We obtained the kinetic parameter values from the simulation, i.e., delayed neutron fraction of 8.11×10‑3, a prompt neutron lifetime of 2.0551×10‑4 s, and an average neutron generation time of 1.87×10‑4 s. The excess reactivity of the reactor was 9.02 %Δk/k, while reactivity in the one-stuck-rod state was below ‑0.5 $ with an average value of ‑3.40 %Δk/k (‑4.19 $). The average thermal neutron flux peak occurred at the central irradiation position with the value of 3.0×1013 to 3.1×1013 n/(cm2 s). The reactor has a power peaking factor of 1.379 in the control rod position of 0 % on D3 fuel. The reactor had a negative feedback reactivity coefficient, except for the moderator coefficient. These results suggest that the current configuration of plate-type fuel met the nuclear reactor neutronic safety standards.
Details
- Language :
- English
- ISSN :
- 01261568
- Volume :
- 1
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Atom Indonesia
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.8b4cc98e9324c55969cd2a1cb1d2671
- Document Type :
- article
- Full Text :
- https://doi.org/10.55981/aij.2023.1199