Nuclear Reactor Control
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Análise das variáveis de entrada de uma rede neural usando teste de correlação e análise de correlação canônica / Analysis of input variables of an artificial neural network using bivariate correlation and canonical correlation
The monitoring of variables and diagnosis of sensor fault in nuclear power plants or processes industries is very important because an early diagnosis allows the correction of the fault and, like this, do not cause the production interruption, improving operators security and its not provoking economics losses. The objective of this work is, in the whole of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2011
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2. Utilização de redes neurais artificiais para determinar o tempo de resposta de sensores de temperatura do tipo RTD / Time response of temperature sensors using neural networks
In a PWR nuclear power plant, the primary coolant temperature and feedwater temperature are measured using RTDs (Resistance Temperature Detectors). These RTDs typically feed the plants control and safety systems and must, therefore, be very accurate and have good dynamic performance. The response time of RTDs is characterized by a single parameter called the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2010
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3. DIGITAL SIMULATION SYSTEM OF NEUTRON PARAMETERS OF THE TRIGA IPR-R1 NUCLEAR RESEARCH REACTOR / SISTEMA DIGITAL PARA SIMULAÇÃO DOS PARÂMETROS NEUTRÔNICOS DO REATOR NUCLEAR DE PESQUISA TRIGA IPR-1
The IPR-R1 TRIGA Mark I nuclear research reactor, at the Nuclear Technology Development Center (CDTN), is a pool type reactor cooling by light water. TRIGA reactors (Training, Research, Isotope, General Atomics) were designed for research, training and radioisotope production. The International Atomic Energy Agency (IAEA) recommends the use of safety and fri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2010
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4. Estudo do processamento do combustível UO2-7%Gd2O3 via mistura mecânica com reutilização de rejeitos do processo de fabricação e aditivo de densificação / UO 2 -7%Gd 2 O 3 FUEL PROCESS DEVELOPMENT BY MECHANICAL BLENDING WITH REPROCESSING OF WASTE PRODUCTS AND USAGE OF DENSIFICATION ADDITIVE
In the nuclear fuel cycle, reprocessing and storage of "burned" fuels, either temporary or permanent, demand high investments and, in addition, can potentially generate environmental problems. A strategy to decrease these problems is to adopt measures to reduce the amount of waste generated. The usage of integrated burnable poison based on gadolinium is a me
Publicado em: 2009
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5. Caracterização da atividade antitumoral das tiossemicarbazonas derivadas de N(4)-Metil-Toluil-2-acetilpiridina e de 2-piridinoformamida e seus complexos metálicos: avaliação do potencial radiofarmaceutico / CHARACTERIZATION OF THE ANTITUMURAL ACTIVITY OF THE THIOSEMICARBAZONES DERIVED FROM N(4)-METHYL-TOLYL-2- ACETYLPYRIDINE AND 2-PIRIDINOFORMAMIDE AND ITS METAL COMPLEX: EVALUATION OF THE RADIOPHARMACEUTICAL POTENTIAL.
Thiosemicarbazones have attracted great pharmacological interest because of their biological properties, such as cytotoxic activity against multiple strains of human tumors. The most studied compounds are pyridine-based because of their resemblance to pyridoxal metabolites that attach to co-enzyme B6-dependant enzymes. This work aimed the characterization of
Publicado em: 2008
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6. Sensitivity analysis for the dynamic behaviour of PWR reactor pressurizers / AnÃlise de sensibilidade no comportamento dinÃmico de pressurizadores de reatores PWR
All PWR reactors are provided with a component called pressurizer, whose aim is to supply the necessary high pressure for its operation and to contain pressure variations in the primary cooling system. This work is intended for determining changes in the variables of interest caused by perturbations in the principal parameters of the pressurizer model that c
Publicado em: 2007
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7. Angra dos Reis reactor neutrino oscillation experiment
We present the status and plans of the Angra Project, a new reactor neutrino oscillation experiment, proposed to be built in Brazil at the Angra dos Reis nuclear complex. This experiment is aimed to measure theta13, the last unknown of the three neutrino mixing angles. We propose a high sensitivity multi-detector experiment, able to reach a sensitivity to an
Brazilian Journal of Physics. Publicado em: 2006-12
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8. Comparison of tomographic systems for X-ray and thermal neutrons
In this work, tomographic images of the same object have been taken with 25 keV X-rays and thermal neutrons (E=0.025 eV) aiming to demonstrate that thermal neutron tomography in some cases is a complementary technique to the X-ray tomography, such as in the examination of hydrogen-bearing compounds wrapped in a metallic matrix for instance. The capability of
Brazilian Journal of Physics. Publicado em: 2003-06
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9. Multivariable robust control of an integrated nuclear power reactor
The design of the main control system of the CAREM nuclear power plant is presented. This plant is an inherently safe low-power nuclear reactor with natural convection on the primary coolant circuit and is self-pressurized with a steam dome on the top of the pressure vessel (PV). It is an integrated reactor as the whole primary coolant circuit is within the
Brazilian Journal of Chemical Engineering. Publicado em: 2002-12
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10. Análise do comportamento de modelos dinâmicos com ruído caótico utilizando controle baseado em lógica nebulosa / x
Este trabalho apresenta a lógica nebulosa aplicada ao controle de modelos de sistemas dinâmicos. 0 controle baseado em lógica nebulosa pode ser utilizado como uma alternativa bastante interessante aos controladores clássicos PI, uma vez que se aproximam mais da experiência humana. Foram utilizadas, para o controle nebuloso, três relações de implicaç
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2001
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11. Análise do comportamento de modelos dinâmicos com ruído caótico utilizando controle baseado em lógica nebulosa / x
Este trabalho apresenta a lógica nebulosa aplicada ao controle de modelos de sistemas dinâmicos. 0 controle baseado em lógica nebulosa pode ser utilizado como uma alternativa bastante interessante aos controladores clássicos PI, uma vez que se aproximam mais da experiência humana. Foram utilizadas, para o controle nebuloso, três relações de implicaç
Publicado em: 2001
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12. Análise do comportamento de modelos dinâmicos com ruído caótico utilizando controle baseado em lógica nebulosa / x
Este trabalho apresenta a lógica nebulosa aplicada ao controle de modelos de sistemas dinâmicos. 0 controle baseado em lógica nebulosa pode ser utilizado como uma alternativa bastante interessante aos controladores clássicos PI, uma vez que se aproximam mais da experiência humana. Foram utilizadas, para o controle nebuloso, três relações de implicaç
Publicado em: 2001