Análise da eficiência energética e exergética de uma planta do setor sucroalcooleiro brasileiro

Abstract

Brazil has global potential in sugarcane production and its by-products, and has demonstrated an increase in the sectors of sugarelectricity and sugaralcohol. The present work is justified by the generation of sub-products that can be taken through the processing of this resource and the importance of this element for the Brazilian economy. The goals are divided into general goals and specific goals. The general goals is to lead a thermodynamic analysis of the cogeneration sugarcane plant, and the specific goal is to identify the main process related to irreversibilities in the cycle to sugest options for increse the performance. The methodology used in the review of literature was the exploratory search, and for the understanding of the plant, a case study was conducted. The results have indicated that the plant is significantly influenced by the moisture present on the bagasse, and it was demonstrated that which 7% of the energy efficiency could be improved by the drying of bagasse to 0% of moisture. In the end it has been concluded that the main components that are responsible for the losses of energy are presented inside the boiler and the exhaust gases could be used to mitigate this effect through a flash dryer implementation.