Estudo de viabilidade econômica e financeira na geração de energia em uma usina termoelétrica a gás combustível: estudo de caso para incremento de produção

Abstract

The energy area in Brazil is going by a strong restructuring in the last years and the national energy politics has as guideline to the enlargement of the participation of the power plants that use natural gas in the electric sector, facing the economical and environmental benefits associated. Like this, the propletors of the plants are more and more investing in technologies to prove the performance of the turbines and to increase the generation of energy. The study is accomplished at a power plant located in the state of Ceará, in the Northeast of Brazil, where the climate is semi-arid and during the whole year presents a wet station and other dry, in which it seeks to analyze the factors that enter into a decision to increment the production of energy using a process of air cooling system in the intake of turbine compressor. The analyses and registrations data of the variables and costs of investments were originated in the own power plant, that among the several technologies for the improvement of the air cooling system in the entrance of the turbine compressors, the cooling through the cold water (chiller), would be one of the better choices technically viable, of low investment cost and operational, that could provide an increased production of energy in conditions of high temperature. Being in a positive way to the economical viability for this investment in this area.