EM - Escola de Minas

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Aeration strategy for controlling grain storage based on simulation and on real data acquisition.
(2008) Lopes, Daniela de Carvalho; Martins, José Helvecio; Lacerda Filho, Adílio Flauzino; Melo, Evandro de Castro; Monteiro, Paulo Marcos de Barros; Queiroz, Daniel Marçal de
In this work a new control strategy for grain aeration systems was proposed. This strategy was implemented in a software package called AERO and relates four conditions which depend on real time data acquisition and on the process simulation. The main advantage of AERO controller is that it can be used in different geographic regions, during different seasons and with different aeration systems, automatically adjusting its set points. The objectives of AEROcontroller are to equalize the temperatures inside the bin, to cool the grain mass whenever is possible and to maintain the moisture content under safe conditions. The results showed that the proposed strategy is efficient to achieve these objectives. Moreover, significant energy saving has been achieved with the AERO controller.