ANA CECILIA DE SOUZA LIMA

ANA CECILIA DE SOUZA LIMA

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Projeto de protótipos de ferramentas para amostragem dos Geradores de Vapor e da Tampa do Vaso do Reator
2022 - JUNQUEIRA, FERNANDO de C.; PRADO, ADELK de C.; LIMA, ANA C. de S.; ALVES JUNIOR, IREMAR; DELLAMANO, JOSE C.; LIMA, JOSE R. de; RAELE, MARCUS P.
A obtenção de amostras dos Geradores de Vapor e da Tampa do Vaso do Reator, removidos da unidade 1, e que se encontram depositados no DIGV da CNAAA, se faz necessária para a caracterização desses rejeitos. A Informação Técnica IPEN-CEN-P&D-ETN-218-01-INFT-007-00 apresenta algumas opções de procedimento de amostragem para cada uma destas estruturas. O presente documento tem por objetivo apresentar, em detalhes, a concepção dos projetos do protótipo das ferramentas que possibilitem a realização dos procedimentos de amostragem propostos na referida Informação Técnica. O presente relatório técnico foi elaborado em atendimento ao item 8.2.4 do Plano de trabalho anexo ao Acordo “Determinação da Composição Isotópica dos Rejeitos Radioativos da CNAAA (Fase B)”, do Acordo de Parceria Tecnológica firmado entre a Eletrobrás Termonuclear S.A., a CNEN - Comissão Nacional de Energia Nuclear e a FUNDEP – Fundação de Desenvolvimento da Pesquisa.
Análise de viabilidade do emprego de Reatores Modulares Pequenos (Small Modular Reactors – SMR) no Brasil
2022 - LIMA, ANA C. de S.; CABRAL, EDUARDO L.L.; SABUNDJIAN, GAIANE; TERREMOTO, LUIS A.A.; ROCHA, MARCELO da S.
Este trabalho apresenta uma análise SWOT sobre os Reatores Modulares Pequenos (Small Modular Reactor- SMR), a fim de avaliar a viabilidade de implantação desses reatores nucleares no Brasil. A análie PESTLA foi utilizada como coadjuvante da análise SWOT servindo para auxiliar na categorização dos fatores considerados de maior relevância no sentido de possibilitar um melhor entendimento das condições de contorno relativas à implantação dos SMRs no Brasil. A análise PESTLA, envolve um estudo dos aspectos Tecnológico, Ambiental, Político, Social (Recursos Humanos/Infraestrutura), Econômico e Legal. As análises SWOT e PESTLA consideraram diversos aspectos no âmbito da instituição governamental responsável pela orientação e planejamento do programa nuclear brasileiro, a CNEN, que através de suas unidades desenvolve atividades de pesquisa e formação especializada na área nuclear. A metodologia adotada neste estudo selecionou os pontos positivos e negativos tanto da instituição quanto dos SMRs. Os reaotres modulares descritos neste trabalho são do tipo Pressurized Water Reactor (PWR) e que se encontram em estágio avançado de desenvolvimento, são eles: CAREM, KLT-40S, SMART e NuScale. O estudo realizado neste documento possibilitará a tomada de decisão sobre a utilização de SMRs no Brasil.
RELAP5 code simulation of the Angra2 pressurizer surge line accident
2021 - SABUNDJIAN, GAIANE; PACHECO, RAFAEL R.; CONTI, THADEU das N.; LIMA, ANA C. de S.; SANCHES, ANDREA
Study of the demand-supply for radiopharmaceuticals in IPEN
2019 - MUTARELLI, RITA de C.; LIMA, ANA C. de S.; SABUNDJIAN, GAIANE
Radiopharmaceuticals are unique medicinal formulations containing radioisotopes and are used in nuclear medicine for diagnosis and/or therapy for chronic diseases such as cancer, alzheimer and cardiac disorders. The increase in the incidence of these diseases in the Brazilian population and the trend of increasing demand for radiopharmaceuticals motivated the elaboration of this work from a system dynamics perspective. The aim of this paper is to present a System Dynamic Model for simulating the interaction between demand, capacity, workforce and production of radiopharmaceuticals produced by IPEN. The validity of this model is verified by running in Vensim PLE software using historical data. The model was based on the generic structure of commodity markets and main variables were considered to represent the market polices. The preliminary model presented was able to capture the expected behavior of the industry of radiopharmaceuticals. Two alternative scenarios were developed, one to analyze the impacts of investment in infrastructure of IPEN and the other to investigate the workforce investment. As result, the model performed well in representing the behavior of the market. In addition, scenario tests showed that investment in infrastructure and workforce investment have a significant impact in the dynamic of the system.
Sustainability
2019 - BARABÁS, CARLOS; LIMA, ANA C. de S.; SABUNDJIAN, GAIANE
Over the years, sustainability has been a major theme discussed by the leading environmental organizations around the world. Excessive consumption is one of the factors that is directly connected to environmental issues, interfering with the sustainability capacity of the Earth. Attitudes and behavior are influenced by both conscious (explicit) or unconscious (implicit) associations that subjects have in their memory. In order to identify unconscious associations, specific implicit memory tests are required, such as the Implicit Association Test (IAT), which is widely used to measure implicit associations towards several themes. This work aims to present the results from a pretest using the IAT to identify and measure the implicit associations of a group of environmental specialists regarding consumption and sustainability. By using the FreeIAT software, the IAT was customized for this research. The pretest with environmental specialists was conducted to check the consistency of the customized IAT. The Cronbach´s alpha was applied to measure the reliability of the test and showed good internal consistency. Since the results from the pretest with the specialists demonstrated that the customized IAT is reliable and consistent, this test can be applied to other groups of subjects to identify the implicit associations towards consumption and sustainability. The data obtained from the administration of the customized IAT will contribute to many research fields related to the environment, consumption, sustainability, energy and development.
Educação ambiental e sustentabilidade
2019 - ESCANHOELA, CORDELIA M.F.; SABUNDJIAN, GAIANE; LIMA, ANA C. de S.
Este trabalho apresenta um estudo sobre a implementação do reator inovador System - Integrated Modular Advanced Reactor (SMART) no Brasil. Desenvolvido pelo Korea Atomic Energy Research Institute (KAERI) e com potência elétrica de 100MWe, esse reator pode atender a uma demanda de cerca de 100.000 habitantes. A escolha deste reator nuclear inovador está alicerçada, primeiramente, na análise do cenário energético nacional, no qual é demonstrada tanto a necessidade da expansão energética no Brasil quanto na imprescindível escolha de fontes alternativas de energia de maneira a atender as exigências de sustentabilidade e atenuação dos impactos ambientais. Dentro do contexto de complementariedade da matriz energética nacional associada à descentralização da geração de energia elétrica; o projeto envolvendo um reator nuclear pequeno e modular do tipo Power Water Reactor (PWR) prova ser uma escolha assertiva inclusive do ponto de vista econômico, já comprovado por meio de métodos econômicofinanceiros e ainda, pelo aproveitamento da expertise existente no país.
Containment pressure analysis methodology during a LBLOCA with COCOSYS code
2018 - SILVA, DAYANE F.; LIMA, ANA C. de S.; SABUNDJIAN, GAIANE
During a nuclear power plant basic design accident, the containment integrity is a determining factor for the accident severity. The pressure and temperature conditions inside the containment in case of a Large Break Loss of Coolant Accident (LBLOCA) must be verified. This paper presents a containment pressure and temperature analysis methodology of a Brazilian PWR, Angra 2, using a code that simulates guillotine rupture - RELAP5 - and the COCOSYS code, which analyzes the containment pressure from the accident conditions. The Angra 2 containment behavior results during the design basis accidents studied - primary cooling system cold and hot legs guillotine ruptures - were satisfactory when compared to those presented in the Final Safety Analysis Report (FSAR / A2) and the pressure distributions were below the containment design pressure value (6.3bar).
A panoramic view of nuclear science and technology education worldwide
2018 - BARABAS, ROBERTA de C.; LIMA, ANA C. de S.; SABUNDJIAN, GAIANE
Nuclear energy has been used as a source of clean energy with many benefits. Nevertheless, it is still addressed with prejudice. The atomic bombing of Hiroshima and Nagasaki during World War II (1945), the Three Mile Island accident (1979), Chernobyl accident (1986), the crash of the cesium-137 in Goiânia, Brazil (1987), and the accident in Fukushima (2011) may have been responsible for the negative image of nuclear energy. Researches on education have been conducted with students concerning the conceptual and practical issues of nuclear energy. This work aims to review the literature about nuclear energy education around the world in both, elementary school and high school. Since most educational researches on nuclear energy were published after 1980, this literature review covered the researches that have been published since 1980. The data were presented in chronological order. The results from the literature review provided a clear visualization of the global nuclear energy educational scenario, showing that the theme is still addressed with prejudice due to an incorrect view of nuclear energy and a limited view of its benefits. Concerning the science textbooks, the literature reports that the theme should be better addressed, encouraging students to research more about it. The data from this literature review will serve as a reference for a future proposal for a teaching training program for Brazilian science/physics high school teachers using a new teaching approach.
Comparative study of methodologies for measuring corporate social responsibility
2018 - MUTARELLI, RITA de C.; LIMA, ANA C. de S.; SABUNDJIAN, GAIANE
The Corporate Social Responsibility (CSR) is a current issue increasingly present in the strategic planning of the companies. Although managers of public or private organizations have turned their attention to social and environmental issues in their strategic actions, measuring the social responsibility of a company is not an easy task. This paper aims to observe the eight most relevant methodologies of CSR measurement and establish a comparative analysis among them by considering the scope and feasibility of each methodology. The most relevant CSR methodologies were selected. The main characteristics of each of the eight tools were observed and compared. The results demonstrated that although most methodologies have strong measuring characteristics the Ethos Indicators consist of the most effective tool for measuring CSR mainly regarding the institutional issues
A neuroscience-based methodology to identify the implicit associations of brazilian science teachers towards nuclear technology
2018 - BARABAS, ROBERTA de C.; LIMA, ANA C. de S.; SABUNDJIAN, GAIANE
Science, technology, and innovation play an essential role in helping countries increase the quality of life they offer their citizens. Since the discovery of nuclear fission in the 30s, the peaceful applications of nuclear technology have benefited several fields. Improved crops, preservation of food, health, environment protection and a stable supply of energy can be cited as contributions of nuclear technology for global wellbeing. Despite all benefits that result from the peaceful uses of nuclear technology, it is still addressed with prejudice. Prejudices may be explicit (conscious) or implicit (unconscious). Either explicit or implicit, prejudices interfere with individuals’ attitudes. This paper aims to assess the implicit associations of Brazilian science teachers towards nuclear technology by administering the Implicit Association Test (IAT). Identifying their implicit associations will contribute for the understanding of prejudices that may interfere with their teaching. A pretest with nuclear specialists was administered to check the consistency of the IAT. Subsequently, it was administered to the science teachers. The results of the IAT demonstrated more positive associations towards oil. The next step consists of proposing a methodology to change implicit associations of Brazilian science teachers towards nuclear technology.