Análise de eficiência econômica para o uso do grupo gerador hospital Santa Casa de Misericórdia de Sobral no horário de ponta

Abstract

This work presents the results of the economic efficiency for the use of the generator set of Santa Casa de Misericórdia Hospital, located in Sobral - Ceará, at peak hours. The electric power concessionaires in Brazil stipulate the most expensive kWh value at peak times, in which, in the state of Ceará, it is from 5:30 p.m. to 8:30 p.m. on weekdays, where is the time interval in which the Greater use of energy in the country causing the mills to increase their level of production, so some large institutions seek to generate their own energy at these times for better economic efficiency. The Santa Casa de Misericórdia Hospital in Sobral has a GTA 311CIIH generator set and SCANIA DC16 48A engine, with nominal power ratings of 635 kVA, voltage 380 V, frequency 60 Hz and fuel tank with a capacity of 250 liters, which is used In cases of emergency in the absence of energy for the permanence of the institution's activities. Aiming at costs compared to the energy supplied by the concessionaire, which proved to be very advantageous, considering the tariffs stipulated by the supplier, the tariff calculated with the costs of using the generator at this time was cheaper, with an average of 28 to 30% savings , Where the latter showed up to 45% advantage. In that these values can be even more profitable if we maintain a regular inspection and improvements in the equipment, highlighting the absence of capacitor bank for the regulation of reactive power that was shown at alarming levels. Keywords: Generators. Group of Generators. Economic Efficiency.