Aplicação de diagnóstico energético em uma fábrica de gelo em São Paulo - SP

Abstract

The industrial facilities in general, always present a great potential for studies of efficiency and energy savings due to the high energy consumption and diversity of equipment, and electric motors have the largest share of this consumption. In this sense, the work in question had the objective of presenting a case study of energy diagnosis in an ice factory in São Paulo, with a main focus on currently installed motors and electric energy bills. The characteristics of the equipment were surveyed and the necessary measurements were made for a technical-economic evaluation of the energy saving opportunities and reduction of the financial expenses. A literature review was also carried out on the question of the consumption of power in the country as well as the main types of equipment used and their perspectives regarding energy efficiency. The case study was also preceded by a description of the methodologies for the elaboration of an Energy Diagnosis, which is usually quite broad, especially when it comes to large installations, which makes it necessary to involve a large number of inspections and evaluations, as well as to establish routines During the process and after performing the diagnosis. Finally, the results of the study showed that the replacement of current engines by new high-performance engines is highly advantageous, representing an annual reduction in energy consumption of 24.8% and the recovery of the investment occurred in just 07 months. This reduction combined with changes in the load curve also led to an annual saving of 28% in the electricity bill.