Artigos

URI permanente para esta coleçãohttps://rigalileo.itegam.org.br/handle/123456789/219

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Aspectos Importantes na Utilização de Bombas Centrífugas em Velocidade Variável para a Redução do Consumo de Energia
(Instituto de Tecnologia, 2006) MESQUITA, André L. Amarante; SILVA, Lázaro J. S. da; ABRAHAM JÚNIOR, Otávio; PEREIRA, José Almir; R. SILVA, Aldo Cezar P.; BATISTA, Clauderino da Silva
The study examines the use of variable speed centrifugal pumps as a solution to reduce energy consumption in water supply systems. It covers theoretical principles, technological aspects, and economic feasibility, employing frequency inverters to adjust flow according to demand. Two case studies illustrate the method's effectiveness: parallel pump operation and tank level control. Results show significant energy savings with short financial payback, emphasizing the need for technical and economic analysis for implementation.
Dust exhaustion systems in the aluminum industry – reference data and design methodology definition problems
(INSTITUTO DE TECNOLOGIA, 2007) TREJO, Antonio Mauricio Martelli; VASCONCELLOS, Mauro Fernandes; MESQUITA, André Luiz Amarante.; MAGALHÃES, Edilson Marques
The study addresses challenges in designing dust exhaustion systems for the aluminum industry, emphasizing the lack of reference data for specific equipment and process emissions. Methodologies for calculating air flow and pressure drop in exhaust systems are reviewed, with a focus on pneumatic conveying of particulates. The work proposes an improved methodological approach based on hydrodynamic models and presents real-world case studies, such as coke loading/unloading systems and alumina feeding in potlines. Conclusions include recommendations for optimizing system performance.
Reciclagem do resíduo da estação de tratamento de efluentes da indústria de injeção de plástico na indústria de cerâmica vermelha
(INSTITUTO DE TECNOLOGIA, 2009) JIMENEZ, I. J.; SOUZA, J. A. S; BRITO, F. S. de.; Eduardo de Magalhães Braga
The study investigates the feasibility of recycling waste from plastic injection industry effluent treatment stations by incorporating it into red ceramic production. Mixtures with 2%, 5%, and 10% waste relative to clay were evaluated, analyzing properties such as density, porosity, and flexural strength. The results indicate that the waste positively influences solid-state reactions, enhancing some mechanical properties of ceramic products, especially at concentrations up to 5%. The research presents a sustainable alternative for industrial waste disposal, aligned with environmental demands.
Sistema para tomada de decisão na programação de produção de Modem e Celular, utilizando lógica fuzzy
(INSTITUTO DE TECNOLOGIA, 2010) SILVA, Carlos Américo de Souza; LEITE, Jandecy Cabral; JÚNIOR, Carlos Tavares da Costa; MAGALHÃES, Edilson Marques
The paper presents a model based on fuzzy logic to assist in decision-making regarding the prioritization of products (3G Modem and Mobile Phone) in industrial production scheduling. The system considers parameters such as delivery time, cycle time, production process, and contribution margin, aiming to optimize sequencing and meet market demands. The goal is to reduce costs and increase organizational profitability.
Analysis of lubricating oil in internal combustion engines of electrical power generation plant. Subtítulo: Análisis de aceite en motores de combustión interna estacionarios de planta de generación de energía eléctrica.
(Instituto de Tecnologia, 2010) SANTOS, Gilbert Queiroz dos; LEITE, Jandecy Cabral; BRASIL, Davi do Socorro Barros
The article presents the application of Fuzzy Logic in the inventory management of a public organization, aiming to reduce material shortages caused by lead time. The study proposes a system based on linguistic variables such as stock level and demand, using membership functions and fuzzy rules to assist in decision-making regarding supply, replenishment, and bidding. The results demonstrate the method's feasibility for optimizing inventory control and minimizing costs.
A Utilização da Automação como Solução dos Problemas Ergonômicos em Prensas Hidráulicas de Estampagem de Peças Metálicas
(Universidade Federal do Pará, 2010) OLIVEIRA, Macêdo Santos de; SILVA, José Antônio S.; DELON, José Alain; NASCIMENTO, Manoel Henrique Reis
This article presents a study on the use of automation in a metal parts factory that uses hydraulic presses for stamping. The goal is to reduce the number of operator absences due to occupational diseases, such as RSI/WMSD, caused by repetitive efforts and inadequate postures. Automation was implemented to improve the ergonomic conditions of workstations and increase production. The study shows that automation reduces costs related to absences and increases production efficiency.
Sistemas de Gerenciamento de Energia e M&V como Ferramentas de Eficiência Energética na Indústria.
(INSTITUTO DE TECNOLOGIA, 2010) SOARES, G. T.; SOARES, T. M.; TOSTES, M. E. L.; MAGALHÃES, Edilson Marques
The article discusses energy management as a tool for energy efficiency in the industrial sector, focusing on energy consumption in production processes. It proposes the implementation of measurement, control, and diagnostic devices to optimize electricity use, highlighting the measurement and verification (M&V) methodology to assess savings. Results show significant energy consumption reduction in a plastics industry, with estimated annual savings of R$ 39,941.29.
Redução do consumo de energia elétrica em Manaus através de medidas de eficiência energética em climatização industrial
(INSTITUTO DE TECNOLOGIA, 2010) SILVA, Jorge Lúcio da; LEITE, Jandecy Cabral; COSTA JUNIOR, Carlos Tavares da; Jandecy Cabral Leite
The article evaluates the impacts of reducing electricity consumption in a company at the Manaus Industrial Hub (PIM) through the optimization of energy efficiency (EE) in industrial air conditioning systems, using Fuzzy Logic as a basis. Measures such as replacing low-efficiency air conditioners with high-efficiency equipment, controlling external heat sources, checking pipeline losses, and adjusting thermal comfort temperature were implemented. The results showed significant reductions in energy consumption and contracted demand, demonstrating the economic and technical feasibility of the adopted measures.
Identificação das Componentes Harmônicas em uma Instalação Elétrica através do Fator de Potência Utilizando Inferência Fuzzy
(INSTITUTO DE TECNOLOGIA, 2010) NEVES, Cleonor C. das; COSTA JUNIOR, Carlos Tavares da; Profa. Dra. Maria Adrina Paixão de Souza da Silva.
This paper proposes a method to identify harmonic components in industrial electrical installations using fuzzy inference and power factor as the main parameter. The linguistic fuzzy logic model was applied to analyze disturbances in the electrical system, based on data collected from a factory in the Manaus Industrial Hub. The study presents an alternative for detecting noise (harmonics) and contributes to improving power quality in electrical systems, using international standards as a reference.
Aplicação de Filtro Harmônico em Sistemas Elétricos de Baixa Tensão utilizando Lógica Fuzzy
(Instituto de Tecnologia, 2010) CIRINO, Weverson dos Santos; LEITE, Jandecy Cabral; COSTA JUNIOR, Carlos Tavares da; TOSTES, Maria Emilia de Lima; QUARESMA, João Nazareno Nonato
The article discusses the application of passive harmonic filters in low-voltage electrical systems to mitigate distortions caused by harmonics, using Fuzzy Logic. The proposed algorithm analyzes and detects harmonic components exceeding 5% of the fundamental coefficient, designing customized filters. The methodology includes computational simulations and validation according to IEC standards, demonstrating effectiveness in reducing distortions and improving power quality.
Monitoramento da Produtividade
(INSTITUTO DE TECNOLOGIA, 2010) FERREIRA, M. S.; LEITE, J. C; LAGO NETO, J. C; JÚNIOR, C. T. C.; Profª. Drª Aline Maria Meiguins de Lima
The article proposes a productivity monitoring model for an LCD production line, combining the Six Sigma methodology and fuzzy logic. The study was conducted in a company from the Manaus Industrial Hub, showing that the model is effective for measuring and increasing productivity, achieving the company's target of 120%. The integrated approach enabled data-driven decision-making based on quantitative and qualitative inputs, with results validated through computational simulation.
Metodologia de avaliação da qualidade do ruído no posto de trabalho baseada em lógica fuzzy
(INSTITUTO DE TECNOLOGIA, 2010) NOGUEIRA, Maria Amélia Costa Saraiva; COSTA JÚNIOR, Carlos Tavares da; LEITE, Jandecy Cabral.; Prof. Dr. Rui Guilherme Cavaleiro de Macedo Alves
This paper proposes a methodology based on fuzzy logic to evaluate noise quality in industrial workplaces, considering variables such as noise level and working hours. The model uses membership functions and fuzzy rules to classify the environment as "satisfactory" or "at risk." The application of the method in a metalworking industry demonstrated its effectiveness in identifying unhealthy conditions, contributing to the prevention of occupational health problems.
Estudo dos Calços Infláveis de Filmes de Polietileno (PE) como substitutos dos Calços de Poliestireno (EPS) utilizados hoje nas Embalagens de Produtos Eletroeletrônicos
(INSTITUTO DE TECNOLOGIA, 2010) OLIVEIRA, Macêdo Santos de; SILVA, José Antônio S.; LOPES, Antônio Dimael de Almeida; MONTEIRO, Alberto de Castro; DELON, José Alain; Prof Dr. Walter Barra Junior
"This ongoing research involves a study using various types of nationally produced polyethylene (PE) films with different thicknesses to be applied as air cushions for protective padding in electronic product packaging. The aim is to replace the commonly used expanded polystyrene (EPS) padding with inflatable PE padding, which offers advantages such as lower cost, efficiency, low manufacturing cost, excellent mechanical performance, and full recyclability. The study compares the two types of padding in terms of logistics, storage, cost, and production efficiency."
Lógica fuzzy aplicada ao estudo da qualidade de energia elétrica em um sistema com distorções harmônicas através do fator de potência
(INSTITUTO DE TECNOLOGIA, 2010) BRITO JÚNIOR, Jorge de Almeida; LEITE, Jandercy Cabral; COSTA JÚNIOR, Carlos Tavares da; TORRES, Maria Emília de Lima; MAGALHÃES, Edilson Marques
This paper presents the study of a low-voltage three-phase system with harmonic distortion using fuzzy logic applied to the power factor. The objective is to reduce losses in the installation, voltage drops, and underutilized capacity, optimizing electricity usage and providing benefits to both the company and the utility.
AVALIAÇÃO DOS SISTEMAS LOGÍSTICOS PARA ADEQUAÇÃO DE WIP NAS INDÚSTRIAS DE ELETRO-ELETRÔNICOS DO POLO INDUSTRIAL DE MANAUS
(Instituto de Tecnologia, 2010) VILHENA, Fábio André de Farias; SOARES, José Josimar; BATISTA, Clauderino da Silva
This work studied a method of economic viability between transport modes for electro-electronic inputs between Asia and Manaus, aiming to choose the best alternative based on cargo weight and unit value, seeking to improve the competitiveness of companies in the Manaus Industrial Pole (PIM). Transport times, costs, intermodal and multimodal interactions were analyzed using indicators such as Future Liquid Value (VFL) and Efficiency/Cost (E/C). It was concluded that the maritime mode is more viable for cargo with values below 50R$, while high-value cargo requires specific analysis between air, multimodal, and maritime modes.
Simulação Computacional no Auxílio à Tomada de Decisão nos Processos Industriais
(INSTITUTO DE TECNOLOGIA, 2010) SMITH, Eliton; ALVES, Reginaldo; LEITE, Jandecy Cabral; Jandecy Cabral Leite
The study presents the application of the computational tool Tecnomatix Plant Simulation to model, simulate, and optimize a TV production line in an electro-electronic industry. The simulation identified bottlenecks, reduced idle times, and increased production efficiency by 5.6%, demonstrating the feasibility of using simulation tools for decision-making in complex industrial environments.
Efeito da transformação da microestrutura do aço ao carbono obtido por processos termoquímico a gás
(INSTITUTO DE TECNOLOGIA, 2010) MONTEIRO, Alberto de Castro; SILVA, José Antonio de Souza; OLIVEIRA, Macêdo Santos de; DELON, José Alain; LEITE, Jandecy Cabral; MAGALHÃES, Edilson Marques
The study examined the microstructural transformation of SAE 1020 steel (low carbon) subjected to gaseous carbonitriding thermochemical treatment to enhance wear resistance in helical broaches for pocket lighters. Nitrided and carburized layers were analyzed via optical microscopy and microhardness tests, comparing approved and non-conforming samples. Results showed that ferric nitride presence significantly increased surface hardness, with diffusion layers of 0.14 µm to 0.47 µm (nitrides) and 1.43 µm to 2.76 µm (carbides), complying with NBR NM 136 standards. The process proved effective for applications requiring ductile cores and wear-resistant surfaces.
Técnicas capazes de usar o oxigênio do ar atmosférico em queimadores industriais
(INSTITUTO DE TECNOLOGIA, 2010) SILVA, Luiz Antonio Ribeiro da; BLANCO, Ricardo Alfonso; MESQUITA, André L. Amarante.; MAGALHÃES, Edilson Marques
The study developed an oxy-fuel system using atmospheric air/GLP as an alternative to pure oxygen for aluminum brazing in window-type air conditioners, aiming to reduce industrial costs. An experimental platform was built to measure temperature and brazing time, using thermocouples and real-time data acquisition. The results showed that the system meets the 45-second production cycle, with cost reduction and maintained process quality.
Análise ergonômica aplicada aos processos industriais relacionada a trabalho em ambientes à altas temperaturas
(Universidade Federal do Pará, 2010) PINHEIRO, Jaqueline Silva de Souza; FARIAS, Marlene Araújo de; LEITE, Jandecy Cabral.; NASCIMENTO, Manoel Henrique Reis
The major industry sector in Manaus is represented by electro-electronic industries, but only a part of them has a suitable ergonomically workplace. In the case of metallurgic industries, their working conditions are not suitable due to a series of factors, such as exposure to high temperatures, which cannot be cooled, creating adverse conditions like thermal shock and fatigue. This paper's general goal is to describe the importance of preserving workers' mental and physical health in the workplace through ergonomics. The study presents improvement suggestions and advice that may contribute to solving ergonomic problems related to workers' health.
Estratégias para logística de suprimento de KITs de produtos de informática em uma empresa do Pólo Industrial de Manaus - PIM
(INSTITUTO DE TECNOLOGIA, 2010) FREITAS, Carlos Alberto Oliveira de; OLIVEIRA, Edson Farias de; OLIVEIRA, Haroldo Melo de; SOUZA, João Carlos Rodrigues de; MAGALHÃES, Edilson Marques
The article examines logistics strategies for supplying IT product kits in the Manaus Industrial Hub (PIM), focusing on transport modal choices (maritime, multimodal, and air) amid regional challenges and the 2008 financial crisis. The studied company initially adopted multimodal transport (Sea/Air) but switched to air freight due to customs delays and material shortages, ensuring speed despite higher costs. The study evaluates service dimensions (speed, consistency, capability, availability, and frequency) and underscores the role of logistics planning in maintaining PIM’s competitiveness.