Optimización de equipos térmicos y termodinámicos con enfoque mecatrónico : Optimización del proceso térmico y térmodinamico que se desarrolla en un refrigerador solar para la parroquia de Lloa.

Abstract

This project focuses on optimizing a raw milk solar cooling system for dairy farmers in the rural parish of Lloa. In this locality several sectors do not have electrical energy this hinders the use of refrigeration equipment, so producers require alternative sources of energy. First, an estimate was made of the amount of milk that producers need to refrigerate, based on this the calculation was made to estimate the necessary cooling power, with this value we proceed to select the equipment, for this project an immersion cooling equipment has been selected, of the Plevnik brand model HM 302K, with a cooling power of 3.75 [kW], the container tank has a maximum capacity of 300 liters, to supply the necessary electrical energy the components of the photovoltaic system are dimensioned, the selected system of the company PROViento S.A. has 9 solar panels, 2 batteries and an inverter of 1.5 [kW]. With the established parameters, we proceed to simulate in MATLAB and analyze the system in its initial state, then a sensitivity analysis is carried out, determining the most critical parameters of the system, and defining the most appropriate values to reduce losses, improving the energy efficiency of the solar cooling system. From the project carried out, an optimized system with an analog PID control is obtained, which allows greater sensitivity when regulating the maintenance temperature of the milk, reducing losses, and increasing the coefficient of performance of the system.