Combined production of sugar, ethanol and electricity: Thermoeconomic and environmental analysis and optimization

摘要: Many works have shown the potential of Brazilian sugarcane industry as an electricity supplier. However, few studies studied how this could be achieved without jeopardizing production sugar and ethanol. Also, impact modifications in cogeneration plant on costs ethanol has not been evaluated. This paper presents approach to problem exergy optimization systems mills. A general model processes is developed based data supplied by a real plant, analysis performed. discussion made about variables that most affect performance processes. Then, procedure presented evaluate system process, their sugar, electricity. Furthermore, renewability index renewability. As conclusion, besides adding new revenue mill, generation excess improves exergo-environmental mill whole.