Automatización del Bioreactor para Obtener la Base de Bebidas Energeticas con Tecnologia Difusa en el Laboratorio de Procesos Industriales de la Facultad de Ciencias.

Abstract

The energy drink bioreactor automation was carried out at the Science Faculty Industrial Processes Laboratory of Escuela Superior Politecnica de Chimborazo in order to reduce the human resource this equipment uses for teaching students. For the desing and implementation of automation systems it was necessary to apply heuristic strategies, so each element used be the most appropiate. With the use of different engineering software applied in the electric, pneumatic, mechanic and electroic area it was posible to prove its performance and error correction in a experimental way. In the PLC (Programmable Logic Controller), it was necessary to create an internal operating program which runs the PT100 temperature sensor as well as the level sensors in each one of the tanks, using established periods of time and sending commands to the actuators which work as a gear motor for shaking the product, it was also necessary to use magnetic electro valves for controlling the butterfly valve which releases the product from the pot and a pneumatic cylinder which opens the sedimentation tank as well as the centrifugue pump to clear the drinks. The gradual opening of vapor is done through PID (Proportional-Integral-Derivative) with a fuzzy logic fine adjustment which decreases the error from 5.56% to 1.1% to reach the required value in a fast way and stabilizing it for an established period of time. Then the wáter injection and venting is carried out with the use of electro valves. The variales register and monitoring is done with the use of an HMI touch screen. This research concluded with the process optimization, since it reduces the time wast in 7.5% and improves the production accuracy. It is recommended to investigate the process in a deep way before the automation to avoid adverse results.