Control and Automation of an Industrial Food Dryer

Abstract

In this paper, the development of a system of automation and control designed for the optimization of the operation of an industrial dryer is presented. The system was divided in three stages, such as: acquisition of variables, design of interfaces and the programming of the system. A series of transducers for the variables were used in the first stage. The development of the electronic circuits was used as an interface with the acquisition and processing of data card NI myRIO-1900. The stage of the development of the programming was made through the software known as LabVIEW, using a PID controller for the development of each control giving: temperature, relative humidity and air velocity. Controlling and visualizing these 3 parameters required a correct evolution on the dynamics of the drying process. The evolution of the variables described with the adjusted parameters is shown for PID controllers.