IMPROVEMENTS OF THE CONTROL SYSTEM FOR THE TECHNOLOGICAL PROCESS OF DRYING BULK MATERIALS

The issues of convective drying of bulk materials as objects of monitoring, control and advanced management are presented based on the results of simulation modeling of a complex heat and mass transfer process, taking into account the drying kinetics. As a result of the work of a number of them, in the last few decades neat hypotheses were formed about moisture migration in and around dried materials, which led to the creation of accurate mathematical models of drying behavior, with successfully applied in a wide range of fields. The reasons for this are the dynamics of processes in the drying tube, inertia during heating and temperature measurement, the inaccuracy of the selected model in the operating temperature range and the assumption of the isobaric nature of the process. The most important result of the simulation model created in this way is excellent coordination between the individual computing units, which is indicated by the normal speed and accuracy of the computing process.

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