Mestrado em Engenharia de Produção

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Navegando Mestrado em Engenharia de Produção por Assunto "Automação"

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    Automação do processo de compostagem: uso de sensores para monitoramento e controle de parâmetros de um processo sustentável
    (Universidade Federal de Goiás, 2019-09-18) Silva, Janice Rodrigues da; Paiva, Ed Carlo Rosa; http://lattes.cnpq.br/8015791628495184; Espinosa, José Waldo Martínez; http://lattes.cnpq.br/5055033961082674; Espinosa, José Waldo Martínez; Guimarães, Marco Paulo; Paula, Heber Martins de; Sarnento, Antover Panazzolo; Silva, Leila Roling Scariot da
    The growing production and disposal of organic waste generates an environmental, economic and social concern, which pressures, the responsible, the resolution of the problems caused by this factor. Thus, the creation of Law No. 12,305 / 10 and Decree No. 7,404, of December 23, 2010, the National Solid Waste Policy (PNRS), helps in the proper disposal of waste and sustainable consumption, providing the possibility of realization. waste treatment and reuse. Organic composting of waste is a form of treatment that requires the completion of a process that involves factors to be analyzed, technologies and equipment to be defined according to the capacity of each agent. Thus, the objective of this work is to monitor, in an automated way, a composting process, using sensors capable of real time data acquisition and control of the presented parameters. The materials for assembling the composting system were established according to the availability of waste and the determination of the process based on the capacity of the facilities and the tools required for analysis and process monitoring. The results showed that there is a need to monitor the parameters of composting processes, thus contributing to the acquisition of reliable data and providing real-time decision making; the windrow has points with different parameters at the same composting time; the center of the windrow does not behave the same as the outermost points; Automated monitoring can be applied to any composting process as long as there is daily monitoring of the entire system. Based on the results obtained, it can be concluded that the composting system is a sustainable alternative to waste disposal problems and the process automation allows the analysis of the parameters that influence the optimized compost treatment.
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    Desenvolvimento de um disco pelotizador em escala laboratorial utilizando controle em malha aberta
    (Universidade Federal de Goiás, 2019-09-19) Garcia, Eloisa Angélica Silva; Guimarães, Marco Paulo; http://lattes.cnpq.br/4547166859048137; Guimarães, Marco Paulo; Fernandes, Nilson José; Santos, Andrea Cristina dos
    Pelletizing was created with the purpose of using ores with particle size less than 0.15 mm, obtaining the agglomerates by rolling the material in drums or discs. This work aimed to develop an automated ore pelletizing equipment, in laboratory scale, with open loop control of the inclination, the angular velocity of the equipment and the amount of water added to the material, generating a product according to the selected size on the machine panel. All tests were performed for thirty minutes, in batch, with five kilograms of material, using limestone as the test mineral. The raw pellets were characterized in size by bench top vibratory screening assays. Initially, the quantities were manually varied to infer their effect on the dimensions of the generated product. Then the appropriate parameters were selected for the generation of a small, medium and large product, according to the smallest variability obtained in the tests. These parameters were later used in open-loop PLC programming, automatically controlling the inclination, angular velocity, and amount of water fed to the agglomeration parameters according to the size selected by the operator. The final tests were performed with automated equipment confirming the efficiency of open loop control in the generation of the three product sizes, affirmed by the approximation of the d 50 of each test before and after automation.