Industrial Electrical Systems
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. DECREASE IN OFF-PEAK ELECTRICAL ENERGY DEMAND BY AGROINDUSTRIES DUE TO PHOTOVOLTAIC SOLAR GENERATION
ABSTRACT The largest energy losses and voltage variations from electricity suppliers occur at times of peak demand. Daytime peaks are mainly influenced by large industrial and commercial consumers. The installation of photovoltaic systems without energy storage to supply part of the demand can contribute to stabilize the voltage and reduce losses. These and
Eng. Agríc.. Publicado em: 12/08/2019
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2. THERMOPHYSICAL PROPERTIES OF 1-ETHYL-3-METHYLIMIDAZOLIUM CHLORIDE SOLUTION FROM 293.15 TO 323.15 K
ABSTRACT Aqueous systems composed of ionic liquid make up a new alternative for use in processes involving the separation of biomolecules. The objective of this experiment was to obtain the thermo-physical properties of density, refractive index, electrical conductivity, molar volume, thermal expansion coefficient and apparent specific volume of the ionic li
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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3. Monitoramento de temperatura do motor de aerogeradores de pequeno porte utilizando Power Line Communication -PLC
The control system and supervision have been revealed very important in product systems. To guarantee the function with quality, industrial process requires a permanent control being necessary keeping stable some variables. One important factor to point using remote monitoring is the possibility to centralize the control of one process in distinct place, man
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. Desenvolvimento de um sistema de manutenção inteligente embarcado
The technological evolution of sensors, electronics, and embedded systems has improved the performance, reliability and robustness of systems as well the maintenance activities, especially the proactive maintenance. These technological advances have provided a new view about the existing maintenance practices. The expansion of signal processing and artificia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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5. Contribuições ao processo computacional para análise de pedidos de indenização por danos em equipamentos elétricos
The increasing number of refunding requests related to electrical and electronic equipment damages has attracted the attention of the electric utilities, consumers, regulatory and other government agencies. Such concerns are not associated only with the financial contents involved, but especially with the social impacts associated to requests, decisions, con
Publicado em: 2010
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6. Computational method for automatic overcurrent coordination of protection devices in industrial electrical systems / Metodologia computacional para coordenação automática de dispositivos de proteção contra sobrecorrente em sistemas elétricos industriais
This work presents a computational methodology for automatic overcurrent coordination of protection devices in radial industrial electrical systems, which main advantages are the accuracy in the devicessettings calculation and the automatic proposition of solutions to coordination problems, whenever it is possible. The methodology is used both for equipment
Publicado em: 2009
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7. Analise dos sistemas de proteção e controle de instalações industriais com geradores sincronos durante operação ilhada / Protection and control systems analysis of industrial plants with synchronous generators during islanded operation
Modern industrial systems are very sophisticated installations with a high number of automatic processes and capability of isolated (islanded) operation after contingences by using onsite generators composed mainly by synchronous machines and steam turbines. Such installations, in the presence of generators, are generically called autoproducers. Since many o
Publicado em: 2009
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8. Integração dos processos de eletrodiálise e de degradação fotoquímica para o tratamento de efluentes salinos contendo fenol. / Integration of electrodialysis and photochemical degradation process for the treatment of a saline wastewater containing phenol.
Chemical oxidation processes can be used to treat industrial wastewater containing non-biodegradable organic compounds. However, the presence of dissolved salts may inhibit or retard the treatment process. In this work, a coupled process is studied including a desalination step by electrodialysis (ED) associated with an advanced oxidation process (photo-Fent
Publicado em: 2009
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9. ELECTRIC DISTRIBUTION POWER SYSTEMS RELIABILITY OPTIMIZATION: An Approach Considering the Selection and Allocation of Protection and Switching Devices / OTIMIZAÇÃO DA CONFIABILIDADE DE SISTEMAS DE DISTRIBUIÇÃO DE ENERGIA ELÉTRICA: Uma Abordagem Considerando a Seleção e Alocação de Dispositivos de Proteção e Manobras
One of the main goals of the electric utilities is to provide energy to its customers in a reliable and low cost way. Traditionally, the electricity sector regulatory commissions impose continuity targets, which must be carried out, to avoid great penalties. For many years, the electric utilities have adopted the practice of allowing the increment of tempora
Publicado em: 2009
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10. ANÁLISE DA INFLUÊNCIA DE UM COMPENSADOR ESTÁTICO DE REATIVOS NA OPERAÇÃO DE SISTEMA ELÉTRICO INDUSTRIAL COM COGERAÇÃO / Analyze of the influence of a static var compensator in operation of a electrical energy industrial system with a cogeneration
In this work is analyzed the influence of a static var compensator (SVC) on the electromechanical stability of the electrical energy system of the industrial consumer ALUMAR that has a cogeneration. The main considerations on cogeneration systems, the FACTS Controllers and the systems involved in the analysis are described. Moreover, it is discussed the mode
Publicado em: 2008
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11. Análise de eficiência energética em sistemas de ar comprimido
The compressed air systems represent plot expressive of energy consumption of an industrial plant. However, the lack of an appropriate project and a regular maintenance causes reduction in the overall performance featuring a constant source of waste. This fact guided the subject of this dissertation research, which is directed towards the development and app
Publicado em: 2008
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12. Analise de viabilidade de troca de motores eletricos superdimensionados e a influencia da energia reativa / Analysis of feasibility of the change of super dimensioned electrical engines and the influence of reactive energy
This study shows the importance of the electrical engine of triphasic induction rotor (squirrel cage), which is the main responsible for the waste of electrical energy in industry; it presents its electrical and mechanical characteristics and its evolution along the years, as well. The study describes the problem of the super dimensioning of these engines th
Publicado em: 2008