Influence of the main neutron absorbers poisons coupled to the Point Kinetics model by the Rosenbrock’s method
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedade Brasileira de Proteção Radiológica - SBPR
2022
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| _version_ | 1876440938962747392 |
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| author | N. B. Schaun |
| author_facet | N. B. Schaun |
| contents | Influence of the main neutron absorbers poisons coupled to the Point Kinetics model by the Rosenbrock’s method N. B. Schaun F. Tumelero C. Z. Petersen Biología Neutron poisons Rosenbrock’s Method Temperature feedback Neutron Point Kinetics In this work, the Neutron Point Kinetics equations are solved for six groups of delayed neutron precursors and different types of ramp reactivity, considering the temperature effects by the Rosenbrock’s method, to verify the methodology. Furthermore, the classical model is solved by inserting the effects of the main neutron poisons, considering constant reactivity for a group of precursors. The simulation consists of inserting a negative constant reactivity, simulating a reactor in its shutdown phase. Then, positive constant reactivity is inserted, simulating power resumption in a reactor already poisoned, to analyzing the final behavior of the neutron density. The simulation achieved its goal of simulating the behavior of the neutron poisons, so that the graphs make physical sense as expected. Therefore, it was found that the proposed method overcame the stiffness of the Neutron Point Kinetics model, and also solved a nonlinear problem by the inclusion of temperature and neutron poisons in the system. 2022 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280971002 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.1 Vol.10 |
| format | Artículo científico |
| id | redalyc_722280971002 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Sociedade Brasileira de Proteção Radiológica - SBPR |
| spellingShingle | Influence of the main neutron absorbers poisons coupled to the Point Kinetics model by the Rosenbrock’s method N. B. Schaun Biología Neutron poisons Rosenbrock’s Method Temperature feedback Neutron Point Kinetics Influence of the main neutron absorbers poisons coupled to the Point Kinetics model by the Rosenbrock’s method N. B. Schaun F. Tumelero C. Z. Petersen Biología Neutron poisons Rosenbrock’s Method Temperature feedback Neutron Point Kinetics In this work, the Neutron Point Kinetics equations are solved for six groups of delayed neutron precursors and different types of ramp reactivity, considering the temperature effects by the Rosenbrock’s method, to verify the methodology. Furthermore, the classical model is solved by inserting the effects of the main neutron poisons, considering constant reactivity for a group of precursors. The simulation consists of inserting a negative constant reactivity, simulating a reactor in its shutdown phase. Then, positive constant reactivity is inserted, simulating power resumption in a reactor already poisoned, to analyzing the final behavior of the neutron density. The simulation achieved its goal of simulating the behavior of the neutron poisons, so that the graphs make physical sense as expected. Therefore, it was found that the proposed method overcame the stiffness of the Neutron Point Kinetics model, and also solved a nonlinear problem by the inclusion of temperature and neutron poisons in the system. 2022 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280971002 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.1 Vol.10 |
| title | Influence of the main neutron absorbers poisons coupled to the Point Kinetics model by the Rosenbrock’s method |
| topic | Biología Neutron poisons Rosenbrock’s Method Temperature feedback Neutron Point Kinetics |
| url | https://www.redalyc.org/articulo.oa?id=722280971002 |