Simulation of transients in ads reactors in three-dimensional geometry

Authors

  • José Rafael Nicolao Carneiro Instituto de Engenharia Nuclear (IEN / CNEN - RJ)
  • Zelmo Rodrigues de Lima Instituto de Engenharia Nuclear (IEN / CNEN - RJ)
  • Alessandro da Cruz Gonçalves Programa de Engenharia Nuclear (PEN / COPPE - UFRJ)

DOI:

https://doi.org/10.15392/bjrs.v9i2B.1417

Keywords:

, subcritical core, spatial kinetics, transients

Abstract

Accelerator-Driven System, ADS, belong to the new generation of advanced reactors being developed that promise to drastically reduce the life of radioactive waste by, for example, the transmutation process. Subcritical reactor designs of the ADS type have attracted worldwide attention and are the subject of research and development in several countries. The purpose of this work is to simulate transients associated with ADS. It adopted the neutron diffusion model that leads the spatial kinetics equations. These equations are solved by the known numerical method of finite differences. The simulations are performed considering transients related to the variations in the intensity of the proton flux provided by the particle accelerator acting in a sub-critical reactor in three-dimensional geometry for two energy groups and six groups of delayed neutron precursors.

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References

C. RUBBIA, et al. Conceptual Design of a Fast Neutron Operated High Power Energy Amplifier, CERN Report, CERN/AT/95-44 (ET), Genebra (1995).

A.J. FIGUEIRA, A.C.M. Alvim and F.C. da Silva, Non Symmetric Alternating Direction Explicit Method Applied to the Calculation of ADS Transients, Annals of Nuclear Energy, 90, pp.459-467 (2016).http://dx.doi.org/10.1016/j.anucene.2015.11.016

A. J. FIGUEIRA, Cinética Espacial para Modelar Transientes em Reatores ADS, tese de

Doutorado, PEN-COPPE-UFRJ, Rio de Janeiro, Brazil (2015).

W. V. de ABREU, A. C. GONÇALVES, Z. R. de LIMA, Numerical Analysis for Transients in External Source Driven Reactors, World Journal of Nuclear Science and Technology, 07, pp.103-120 (2017).

W. V. de Abreu, Análise Numérica de Transientes em um Reator Slab Guiado por Fonte Externa, Dissertação de Mestrado, IEN-CNEN, Rio de Janeiro, Brazil (2017).

S. NAKAMURA, Computational Methods in Engineering and Science, Wiley and Sons, New York, USA (1977).

A.C.M. ALVIM, Métodos Numéricos em Engenharia Nuclear, 1th Edition, Certa Ltd., Curitiba, Brazil (2007).

W.M. STACEY, Space-Time Nuclear Reactor Kinetics, Academic Press, New York, USA

(1969).

H.W. PRESS, S.A. TEUKOLSKY, W.T. VETTERLING, et al. Numerical Recipes in Fortran, 2th Edition, Cambrige University Press, New York, USA (1992).

D. R. FERGUSON & K. F. HANSEN, Solution of the Space-Dependent Reactor Kinetics Equations in Three Dimensions, Nuclear Science and Engineering, 51:2, pp.189-205 (1973).

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Published

2021-07-25

How to Cite

Carneiro, J. R. N., de Lima, Z. R., & Gonçalves, A. da C. (2021). Simulation of transients in ads reactors in three-dimensional geometry. Brazilian Journal of Radiation Sciences, 9(2B (Suppl.). https://doi.org/10.15392/bjrs.v9i2B.1417

Issue

Section

XXI Meeting on Nuclear Reactor Physics and Thermal Hydraulics (XXI ENFIR) and VI ENIN