Navegando por Autor "CAMPOS, Lucila Maria de Souza"

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Comparação do Impacto Ambiental duma Usina Elétrica quando Utiliza Motores de Óleo Combustível Pesado e quando Utiliza Motores a Gás
(INSTITUTO DE TECNOLOGIA, 2013) SILVA, Wagner Ferreira; CAMPOS, Lucila Maria de Souza; MIGUEL, Paulo Augusto Cauchick; RODRIGUEZ, Jorge Laureano Moya; LEITE, Jandecy Cabral; MAGALHÃES, Edilson Marques
The study compares the environmental impact of a power plant in the Brazilian Amazon when using heavy fuel oil (HFO) engines and natural gas engines. It analyzes emissions of pollutants such as CO, CO₂, NOx, SOx, and particulate matter, noting that gas engines emit less NOx and SOx but more CO and CO₂ per unit of power supplied.
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 Souza
Although 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.
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 Marques
The 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.
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 Junior
The 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.