variavel0=<b>Ricardo Alexandre Pereira Borba</b> - borba@scgas.com.br Universidade Federal de Santa Catarina
<b>Edson Bazzo</b> - ebazzo@emc.ufsc.br Universidade Federal de Santa Catarina
<b>Marcelo Augusto Milan Silva</b> - milan@cet.ufsc.br Universidade Federal de Santa Catarina
<b>Roberto Wolf Francisco Junior</b> - Roberto@cet.ufsc.br Universidade Federal de Santa Catarina
<b>Abstract.</b> A thermal and economical analysis is performed for a cogeneration system in a ceramic industry, in order to evaluate three different simulation methods. The analysis consists in compare the methods and study the principal differences between a method that uses the gas turbine curve performance and a real thermal and electrical load profile (method 1) with two other methods that are more used to evaluate cogeneration system viability. Method 1 requires a strong work to do a database of thermal and electrical demand. Gas turbine curve performance also are a difficult to obtain from manufacturers. The technical and economical results presented in this work show that is necessary to use the method 1 to do a real analysis for cogeneration systems.
<b>Keywords.</b> cogeneration, gas turbines, numeric simulation, ceramic industry.