Fiomari, Marcelo C.Mashiba, Marcos H. S.Junior, Ricardo A. R.Takaki, Alessandro T.Ramos, Ricardo A. V.2014-05-202014-05-202006-01-01Ecos 2006: Proceedings of the 19th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Vols 1-3. Zografou: Natl Technical Univ Athens, p. 1229-1236, 2006.http://hdl.handle.net/11449/9906In this work a detailed thermodynamic analysis for an extraction-condensation steam turbine capable to drive a 40 MVA electricity generator in a sugar-alcohol factory was carried out. The use of this turbine in the cogeneration system showed that its efficiency contributed to increase the power generation, although the condensation reduces the overall efficiency of the plant. Sensibility analyses were performed to evaluate the behavior of the overall energy efficiency of a plant with the extraction-condensation turbine in function of the boiler efficiency, the specific consumption of steam in the processes and the condensation rate in the turbine. It was observed that the plant efficiency is very sensible to the condensation rate variation and it increases when there is an increase in the demand of steam for processes.1229-1236engcogenerationextraction-condensation turbinesugar cane industrythermodynamic analysisTrabalho apresentado em eventoWOS:000245232700141Acesso aberto