Open AccessSimulation of transients in ads reactors in three-dimensional geometry
Author(s) -
José Rafael Nicolao Carneiro,
Zelmo Rodrigues de Lima,
Alessandro da Cruz Gonçalves
Publication year - 2021
Publication title -
brazilian journal of radiation sciences
Language(s) - English
Resource type - Journals
ISSN - 2319-0612
DOI - 10.15392/bjrs.v9i2b.1417
Subject(s) - nuclear transmutation , neutron , neutron flux , nuclear engineering , transient (computer programming) , diffusion , neutron transport , work (physics) , proton , physics , nuclear physics , computer science , engineering , thermodynamics , operating system
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.