Modelado y simulación de un tanque de mezclado con calentamiento como herramienta didáctica para control de procesos

Abstract

The aim of this work was to develop the modeling and simulation of a mixing tank with heater, which will work as a didactic tool for Automatic Process Control subject. To achieve this, transfer functions were used, obtained from the mass and energy balances, constant values and parameters that determine the behavior of the system were declared, in order to represent them in block diagrams and later program them graphically in Simulink, to be able to observe the dynamic behavior of the system in a given time range. In this project, proportional, integral, derivative (PID) and ON-OFF controllers were applied for level and temperature, presenting various forms of control. The values of set point and the disturbances were defined as step functions, each of them determined with operating parameters such as amplitude, delay and period, parameters that can easily be modified by the user. In addition to the different parameters of the controllers, the graphical interface was developed using Matlab's App Designer, which interacts by means of a function directly with the system model in Simulink, which facilitated the design of the application, making it visually understandable and dynamic for users. The validation of the system model was done by comparing it with the resolution of a practical case manually. It is concluded that the virtual tool developed manages to simulate the behavior of a mixing tank with heater, shows a wide functionality and didactic use. It is recommended to make the block diagram in order to have a global interpretation of the behavior of the system.