Projeto e execução da automação de um sistema de refrigeração visando a eficiência energética

Abstract

This paper brings an applied methodology to a cooling system in a food company, located on northwest of Parana State in Brazil, in order to automate the temperature control, and consequently improve the energy efficiency of the plant. The project purpose consist in the replacement of eighteen electronic Soft-Starters for power inverters, that are capable devices of modulate the velocity of fan's motors in order to keep the ambient temperature at an ideal level and save energy. The methodology includes questionnaires that are going to indicate whether the project is executable. Furthermore, lab experiments will be performed with the same electronic devices already mentioned, but utilizing lower electric powers. This experiments can determinate the efficiency of the project. If satisfactory data were obtained, the project continues, and data will be collected before and after the project implementation, otherwise, the project are going to be shut down. Finally, the data will be compared and the payback shall be determined.