Repositório Institucional Galileo
O RIGalileo é uma plataforma dedicada ao armazenamento, preservação e disseminação do conhecimento científico e acadêmico, alinhada aos princípios da Ciência Aberta. O RIGalileo oferece acesso a coleção de recursos, incluindo livros, trabalhos de conclusão de curso, dissertações, teses, artigos científicos, relatórios e documentos resultantes das atividades de pesquisa e desenvolvimento (P&D) do ITEGAM.
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- A comunidade se destina a armazenar as políticas e documentação da Biblioteca do Instituto de Tecnologia e Educação Galileo da Amazônia.
- Trabalhos ténico-científico oriundos de convênios com universidades para oferta de turmas de mestrado e doutorados no Estado do Amazonas
- Produção do Programa de Pós-graduação em Engenharia, Gestão de Processos, Sistema e Ambiental (EGPSA)/Instituto de Tecnologia e Educação Galileo da Amazônia (ITEGAM).
Submissões Recentes
Industrial Multivariate Explorer: A solution with Matlab for time series mining
(INSTITUTO DE TECNOLOGIA, 2015) SEISDEDOS, Luis Vázquez; CASTILLO, Alvaro Aguilera; MARTINEZ, David Diaz; ROSALES, Rolando Ramis; PEREZ, Jose Manuel Rodriguez; Jandecy Cabral Leite
The study introduces the development of a Matlab application named Industrial Multivariate Explorer (IME), designed to explore and extract information from time series data in chemical and thermo-energy processes. The tool allows visualization of up to eight normalized signals, selection of specific time windows with cursors, and calculation of descriptive statistics for static modeling. Results can be saved in Excel files, facilitating the analysis of quasi-stationary states in industrial processes. The application was tested with real data from a 250 MW thermal power plant and simulated data, demonstrating its utility for process monitoring and diagnostics.
Isothermic Gasification Octave
(INSTITUTO DE TECNOLOGIA, 2015) MATIAUDA, Mario; DE LEÓN BENÍTEZ, Juan B.; ARTEAGA, Luis Ernesto; FREAZA, Nora; RIVERO, Marta; YACHECEN, Carlos; Eduardo de Magalhães Braga
Gasification is a process of thermal conversion where solid biomass (sawdust pellets) is transformed into gas by partial oxidation at high temperatures. The model is based on the two-phase theory (bubble - emulsion), suitable for predicting experimental results in reactions occurring in fluidized beds. The model simulation includes mass and energy balances and hydrodynamic studies, with assumptions such as isothermal process behavior.
Limestone Calcination Optimization of Vertical Container Oven
(INSTITUTO DE TECNOLOGIA, 2015) SAGASTUME GUTIÉRREZ, Alexis; Manoel Henrique Reis Nascimento
Producing lime demands high energy consumption and leads to significant CO₂ emissions. This study aims to establish a methodology to optimize limestone calcination in standard vertical kilns in Cuba, considering lime quality’s impact on the economic contribution margin. Tools such as exergy analysis and genetic algorithms were used. Major inefficiencies identified include combustion irreversibilities, heat transfer losses, and exergy loss through exhaust gases. Applying the methodology reduced energy consumption by 4.6% and improved lime quality by 5.3%.
Loss of product (cryogenic liquid) for filling of cars - tanks: production of liquid
(INSTITUTO DE TECNOLOGIA, 2015) TORRINHA, Andrea da Silva; OLIVEIRA, Maria Socorro Frutuoso de; GUEDES, Megue Pinheiro; LEITE, Jandecy Cabral; José Antônio da Silva Souza
The paper analyzes the loss of cryogenic liquids (oxygen and nitrogen) during the filling of tank cars, a critical stage in the transportation of these gases. Losses occur due to heat exchanges causing vaporization, internal pressure increase in tanks, and inadequate pump handling. Using field questionnaires, operational data, and literature review, the study suggests improvements such as better thermal insulation and operator training, emphasizing the economic and environmental impacts of such waste.
Matrix polyester composite strengthened by munguba fiber (Pseudobombax munguba) Amazon
(INSTITUTO DE TECNOLOGIA, 2015) LOPES, Raimundo V. P.; LEITE, Jandecy C.; FUJIYAMA, Roberto Tetsuo; AFONSO, Marcus R. B.; HERMENEGILDO, Eleodoro R.; MAGALHÃES, Edilson Marques
The diversity of Amazon flora supports the development of new polymeric composites. This article evaluates the mechanical properties of polyester composites reinforced with short and continuous munguba fibers (Pseudobombax munguba). Tensile tests were conducted for fibers of different lengths (5, 10, and 15 mm) and continuous aligned fibers. Results indicated increased tensile strength with fiber length and superior mechanical performance with aligned continuous fibers.