Documentação de convênios

URI permanente desta comunidadehttps://rigalileo.itegam.org.br/handle/123456789/173

Trabalhos ténico-científico oriundos de convênios com universidades para oferta de turmas de mestrado e doutorados no Estado do Amazonas

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Assunto: search.filters.subject.Identificação de sistemas

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    ANÁLISE E IDENTIFICAÇÃO DO MODELO DINÂMICO DO PROCESSO DE COMBUSTÃO EM UM CALCINADOR INDUSTRIAL
    (Instituto de Tecnologia, 2015) COSTA, Daniella dos Santos Ferreira; SILVA, Orlando Fonseca
    This work was developed at Hydro Alunorte's alumina refinery in Barcarena — PA, specifically in the calcination area. Calcination is the process by which all the free water or combined hydrate (Al₂O₃·3H₂O) is eliminated, forming aluminum oxide or simply alumina (Al₂O₃). This reaction requires heating in the combustion chamber with controlled temperature around 1000ºC, located within the stationary fluidized bed calciners. Inside the furnace, a combustion reaction takes place with HFO (Heavy Fuel Oil) as fuel and atmospheric air, which is captured via blowers. The main objective of this work is to identify a representative mathematical model for the combustion process that happens inside the furnace, to further optimize it, thus increasing the energy efficiency of the calciner oven.
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    Identificação de Sistemas Dinâmicos Aplicada: Desenvolvimento de Software Baseado em Mínimos Quadrados
    (Instituto de Tecnologia, 2015) RAMOS, André Camarão; SILVA, Orlando Fonseca
    Due to fluctuations in prices of raw material markets, optimization and cost reduction are top actions in alumina refinery and powerhouse processes. The way to achieve that is by keeping precise mathematical plant models and good controlling performance. In this paper, the role of process identification is presented under non-recursive single input least-square problem, and also in state space form. As a tool for turning least-square estimation problems easy and fast, a worksheet software was built and applied on calcination process and over steam generation on a 15 bar boiler.