Projeto de secadores de grãos com recirculação do fluxo de ar por meio de dinâmica de sistemas: uma abordagem a otimização, controle, eficiência energética e exergética

In this work, a system dynamics model was developed to simulate fluidized bed dryers with exhaust air recirculation. The behavior of the grain dryer was completely analyzed from a series of scenarios. A study involving drying corn grains was presented, using parameters and configurations of practical examples, to obtain control and stability of the drying process, using pre-established values of energy and exergetic efficiencies. The a priori control methodology presented optimized, controlled and stabilized results. The simulation results were analyzed until reaching the stability of the control system of the controlled variable.