Diseño e implementación de un sistema rotatorio de flujo constante para secado de cacao utilizando transferencia de calor por convección y control fredictivo basado en modelo.

Abstract

This paper describes the design and implementation of a Revolving For Using Dried Cocoa Convective heat transfer and Constant Flow System Based Model Predictive Control. All stages, the processes performed, materials, tools and different machines or using electronic equipment, as well as the analysis, the results and the final product considering the mathematical model are described. In this research algorithm based on model predictive control with which the mass flow of gas to generate , the step of generating hot air , the heat energy required for regulating drying cocoa within the rotating cylinder chamber is taught drying . The mathematical model is obtained and the equation of the control law is implemented on an adjustable gas valve LPG which the same becomes the actuator or control element; simulations were performed and design built in real system. With an embedded micro controller and interface for programming the control law and its ports take the reading and executing the respective control actions system was used. Is used to obtain the mathematical model , the technique of system identification by the method of open loop and step test ; it is necessary to work with and generate predictive control law for controlling the same . The control law depends on the prediction horizon and control, predictive algorithm is optimized getting better response speed, accuracy and robustness, which generates better performance on the system where the control algorithm is used. Efficiency versus Control PID Control MPCB compared.