Optimization of a microreactor core's dimensions using metaheuristic methods
DOI:
https://doi.org/10.15392/2319-0612.2022.1903Keywords:
Multigroup diffusion, Core optimization, Microreactor, LOF, MetaheuristicsAbstract
This article proposes the use of the multi-group diffusion equations with four groups to determine the dimensions of the microreactor of the TERRA project. With this intent, the values of the radius and height of the cylinder that represents the core, as well as its enrichment were optimized through a framework called LOF. This tool has several metaheuristics methods already implemented, which provides a considerable time gain. So any particular method implemented, or a combination of some of them, could be utilized without any concerns regarding implementation time. In addition to the application of the metaheuristic methods for the proposed optimization, there was also a concern about altering the search parameters used in each of the metaheuristics, which eventually caused an improvement in the results. With this method, the radius and height dimensions achieved were quite reasonable for a microreactor. As for the enrichment, the value of 19.75% was achieved, limited by the Non-Proliferation Treaty.
Downloads
References
CHEN, Z.; ZHANG, Z.; XIE, J.; GUO, Q.;YU, T. Metaheuristic optimization method for compact reactor radiation shielding design based on genetic algorithm. Annals of Nuclear Energy, 2019, v. 134, p. 318-329. DOI: https://doi.org/10.1016/j.anucene.2019.06.031
VARIANSYAH, I.; BETZLER, B. R.; CHANDLER, D.; ILAS, G.; MARTIN, W. R. A metaheuristic optimization tool for high flux isotope reactor low-enriched uranium core design. Oak Ridge National Lab (ORNL), Oak Ridge, TN, USA. 2019.
DUDERSTADT, J. J.;HAMILTON, L. J. Nuclear Reactor Analysis, John Wiley & Sons, Inc., New York, USA, 1976.
NASCIMENTO, J. A. et al. Conceptual design and neutronic evaluation of a fast micro-reactor for utilization in space and oceans, Unpublished manuscript, 2013, vol. 1, pp. 1–199.
TEMPLIN, L. J. Reactor Physics Constants, ANL-5800, vol. 21., New York, USA, 1963.
Published
Issue
Section
License
Copyright (c) 2022 Brazilian Journal of Radiation Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
Licensing: The BJRS articles are licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
How to Cite
