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
Eco-efficiency in industry and PML plastic, reducing waste stretch film in production
(INSTITUTO DE TECNOLOGIA, 2015) VASCONCELOS, Agna de Souza; COSTA, Elis Patrícia Silva; MONTEIRO, Mayna Carolina Alves; MAGALHÃES, Edilson Marques
This study explores the application of Cleaner Production (CP) tools combined with eco-efficiency in the plastics industry, focusing on waste reduction in stretch film production. A quantitative case study identified inefficiencies in raw material handling and logistics, leading to high costs and environmental impacts. The proposed solution includes installing fixed pipelines and preventive maintenance to reduce virgin material consumption and enhance operational efficiency. The results show that adopting these practices can yield significant cost savings and promote sustainability.
Fluidized bed combustion of sawdust pellets
(INSTITUTO DE TECNOLOGIA, 2015) MATIAUDA, Mario; BENÍTEZ, Juan B. de León; FREAZA, Nora; RIVERO, Marta.; Jandecy Cabral Leite
The 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.
Harmonic Impact analysis coming from the manufacturing processes of a Eletroeletrônica Industry Using KDD and Decision Trees
(INSTITUTO DE TECNOLOGIA, 2015) NOGUEIRA, Rildo de Mendonça; OLIVEIRA, Edson Farias de; SILVA, Waterloo Ferreira da; SANTANA, Ádamo L.; TOSTES, Maria Emília de Lima; SOARES, Thiago Mota; Profa. Dra. Maria Adrina Paixão de Souza da Silva.
The study analyzes the impact of harmonic distortions generated by non-linear loads (computers, notebooks, and tablets) on the electrical grid of an electronics industry in Manaus. Using the KDD (Knowledge Discovery in Databases) methodology and decision trees, data were collected over a week at different points in the production process. The results identified that the 5th and 7th order harmonics, originating from the tablet production line, contributed the most to the total harmonic distortion of voltage (THDv) at the common coupling point (PCC). The decision tree technique proved effective in classifying and prioritizing distortion sources, aiding in decision-making for impact mitigation.
Industrial Multivariate Explorer: A solution with Matlab for time series mining
(INSTITUTO DE TECNOLOGIA, 2015) VÁZQUEZ SEISDEDOS, Luis; AGUILERA CASTILLO, Alvaro; DIAZ MARTINEZ, David; RAMIS ROSALES, Rolando; RODRIGUEZ PEREZ, Jose Manuel; Prof. Dr. Carlos Tavares da Costa Júnior
The design and features of a Matlab application supporting applied research in time series computing are presented. The tool enables visualization of up to eight signals, selection of short time windows, and computation of statistics that aid in static and dynamic modeling. It is an open application that allows the inclusion of new features and is exemplified using real-time series from a 250 MW thermal power plant and simulated data via Simulink.
Isothermic Gasification Octave: Gasificação isotérmica modelada e simulada com Octave
(INSTITUTO DE TECNOLOGIA, 2015) MATIAUDA, Mario; DE LEÓN BENÍTEZ, Juan B.; ARTEAGA, Luis Ernesto; FREAZA, Nora; RIVERO, Marta; YACHECEN, Carlos; Manoel Henrique Reis Nascimento, Dr.
Gasification is a thermal conversion process where solid biomass (sawdust pellets) turns 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 fluidized bed reactions. It includes mass and energy balances, and hydrodynamic studies. The simulation is implemented in Octave with a graphical user interface, enabling predictions of the distribution and concentrations of gas species during the process.