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URI permanente para esta coleçãohttps://rigalileo.itegam.org.br/handle/123456789/219
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Item Fluidized bed combustion of sawdust pellets(INSTITUTO DE TECNOLOGIA, 2015) MATIAUDA, Mario; BENÍTEZ, Juan B. de León; FREAZA, Nora; RIVERO, Marta.; Jandecy Cabral LeiteThe study investigates the combustion of sawdust pellets in a fluidized bed, aiming at the energy recovery of solid waste in bioethanol production. Samples of pine and palo blanco were analyzed, focusing on the devolatilization stage and primary fragmentation. Results showed significant differences in thermal behavior and fragmentation between the species, with pine exhibiting less fragmentation and more consistent residues. The theoretical model used predicted devolatilization times, validated experimentally, highlighting the influence of bed temperature and particle diameter.Item Desenvolvimento de um Modelo Matemático para a Avaliação da Eficiência da Combustão em Usinas Termoelétricas Operando com Gás e Alternando com Diesel(INSTITUTO DE TECNOLOGIA, 2015) AZEVEDO, Manoel S. Santos; LEITE, Jandecy Cabral; CARVAJAL, Tirso Lorenzo Reyes; RODRIGUEZ, Jorge Laureano Moya; RICO, Iván Leandro Rodriguez; DÍAZ, Pablo Romélio Roque; GOMES, Paulo Cezar Rocha.; Prof Dr. Walter Barra JuniorThe article presents a mathematical model developed to evaluate combustion efficiency in thermoelectric power plants operating with natural gas (NG) and alternating with diesel (HFO). The study was conducted in a plant transitioning to dual-fuel use, aiming to optimize energy efficiency and reduce pollutant emissions. The model covers stoichiometric, thermodynamic, and kinetic aspects of combustion, implemented in software for real-time analysis. Results demonstrated the model's feasibility in predicting engine performance and optimizing specific fuel consumption, with practical applications in plant operation.