Documentação de convênios
URI permanente desta comunidadehttps://rigalileo.itegam.org.br/handle/123456789/173
Trabalhos ténico-científico oriundos de convênios com universidades para oferta de turmas de mestrado e doutorados no Estado do Amazonas
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Resultados da Pesquisa
Item GESTÃO TERMOECOLÓGICA DE USINAS TERMOELÉTRICAS COM MOTORES DE COMBUSTÃO INTERNA: MODELO BASEADO EM ASPECTOS TÉCNICOS, ECONÔMICOS E AMBIENTAIS(Universidade Federal de Santa Catarina, 2017) SILVA, Wagner Ferreira; CAMPOS, Lucila Maria de SouzaAlthough there is a global trend toward renewable energy use, in thermoelectric plants, the main energy source remains fossil fuels. These plants, while generating the required electrical power for consumption, are significant sources of environmental pollution. This thesis develops a proposal for the thermoecological management of thermoelectric plants, jointly evaluating the thermal and environmental efficiency of internal combustion engines powered by fossil fuels, specifically fuel oil and natural gas. Different mathematical models were created and used in the development of procedures integrating technical (efficiencies), economic (fuel consumption and cost), and environmental (emission index, ecological function, and eco-efficiency) aspects. For the first time, the concept of entransy is applied to evaluate engine efficiency and to enhance the ecological function initially developed by Angulo-Brown. The concept of eco-efficiency was employed in the multi-objective optimization of load dispatch, allowing managers to evaluate different simulations in pursuit of higher thermoecological efficiency. Practical evaluation was carried out through the application of these procedures in a specific software for the type of thermoelectric plants analyzed. The main results include theoretical advances in thermoecological management and the creation of a practical tool for data analysis and decision-making. The effectiveness of the proposed procedures was demonstrated in real cases with different generation and fuel type scenarios.Item Previsão da Eficiência de uma Usina Geradora de Energia Elétrica(INSTITUTO DE TECNOLOGIA, 2014) SILVA, Wagner Ferreira; CAMPOS, Lucila Maria de Souza; MIGUEL, Paulo Augusto Cauchick; MAGALHÃES, Edilson MarquesThe study examines the efficiency reduction of motors in an electricity-generating plant from 2001 to 2013, forecasting efficiency up to 2020. Methods such as exponential, logarithmic, linear, and ARIMA were applied using tools like Excel and SPSS20. Results indicated consistency across models, demonstrating the effectiveness of simple solutions for long-term forecasts. The research underscores the significance of forecasting for strategic and operational planning in thermoelectric plants.Item Previsão do Índice de Emissões de uma Usina Geradora de Eletricidade(INSTITUTO DE TECNOLOGIA, 2015) SILVA, Wagner Ferreira; CAMPOS, Lucila Maria de Souza; MIGUEL, Paulo Augusto Cauchick; RODRÍGUEZ, Jorge Laureano Moya; LEITE, Jandecy Cabral; Prof Dr. Walter Barra JuniorThe study examines the emission indices of an electricity-generating plant from 2001 to 2013, forecasting emissions up to 2020. Methods such as exponential, logarithmic, linear, and ARIMA were applied using tools like Excel and SPSS20. Results indicated an increase in emissions over time, with variations depending on the method used. The research underscores the significance of forecasting for environmental and operational planning in thermoelectric plants, while comparing the effectiveness of different methods.Item Environmental and economic impact of the use of natural gas for generating electricity in The Amazon: A case study(INSTITUTO DE TECNOLOGIA, 2015) SILVA, Wagner Ferreira; CAMPOS, Lucila M. S.; MOYA-RODRIGUEZ, Jorge L.; LEITE, Jandecy Cabral; MAGALHÃES, Edilson MarquesThe study assessed the environmental and economic impacts of replacing heavy fuel oil (HFO) with natural gas (NG) in a thermoelectric plant in the Amazon, Brazil, from 2010 to 2012. Results showed a 20% reduction in energy generation costs (R$ 282/MWh in 2012) and significant decreases in CO₂, NOₓ, and SOₓ emissions. Despite an average thermal efficiency of 37.86%, the analysis underscores the economic and environmental feasibility of NG, recommending combined-cycle technologies for further optimization. Specific consumption, capacity factors, and emission data were compared, highlighting benefits aligned with sustainable energy policies.Item Análise do Tratamento de Resíduos Oleosos com Reaproveitamento de Borra de Óleo Pesado em Termelétricas(Instituto de Tecnologia, 2011) SILVA, Wagner Ferreira; OLIVEIRA, Roberto Célio Limão deThe main objective of this work is to evaluate a technology to transform oily residue into distinct liquids, water and oil, whose water can be separated and disposed within tolerable legal limits and the treated oil returned to the power generation process. The study was conducted in two power plants in Manaus, Brazil, between 2009 and 2011. Laboratory analyses and bibliographic research were carried out to validate the use of oily residues and incorporate innovative technical concepts that would enable the design of a treatment prototype. The developed prototype aims to remove impurities and mixed water, returning the oil to a viable product for reuse as fuel in electricity generation.