Modelado, simulación y control de un intercambiador de calor tipo coraza y tubos para la materia de control automático de procesos

Abstract

The present work focuses on the modeling, simulation and control of a shell and tube type heat exchanger; as a didactic tool for the subject of Automatic Process Control. First, the properties of the fluid, operating conditions and variables were determined. Once these antecedents were established, the mathematical model was developed through the analysis of equations and finally the transfer function that will describe the behavior of the exchanger was obtained. For the simulation process, the Matlab tool was used, including a package called visual Simulink and App Designer for graphical interfaces. For the control system, visual Simulink was used for this, the parameters were imported from the Matlab script by adding a PID controller to improve its Operation. In the same way, the didactic platform was created allowing interaction with the user through the use of the App Designer tool. The application is independent of Matlab, for this it is appropriate to install through the steps established in the manual. As results, three graphs were obtained that illustrate the outlet temperature, the fluid level and the opening of the pressure valve water control. In the validation of the software, a minimum error percentage was established, making it known that it is a program in a reliable way and that it is developed in the shortest possible time. Likewise, the model is useful for predicting and examining heat transfer. From the simulation, I conclude that the developed program allows evaluation, thus facilitating the teaching and learning of heat transfer. The recommendation to the Escuela Superior Politécnica de Chimborazo to acquire the Matlab software license because it is a very important tool in the simulation of any industrial and related process.