Encontro de Energia no Meio Rural
Agrener

Abstract

FIOMARI, Marcelo Caldato, MASHIBA, Marcos Hideo da Silva, LIMA, Rodrigo dos Santos et al. Análise termodinâmica e termoeconômica de uma usina sucroalcooleira que produz excedente de energia para comercialização. In Proceedings of the 6. Encontro de Energia no Meio Rural, 2006, Campinas (SP, Brazil) [online]. 2006 [cited 25 April 2024]. Available from: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000022006000100015&lng=en&nrm=iso> .

In this work, thermodynamic and thermoeconomic analyses of a plant resulted from an expansion of the Pioneiros Distillery's cogeneration system are carried out, which is constituted basically by a boiler that produces 140 ton/h of steam at high pressure and temperature (6,6 MPa and 530 ºC, respectively), by a condensation-extraction turbine that drives a electrical generator producing 32 MW, being the mechanical drivers realized by electrical engines. By means of thermodynamic analyses it's possible to define some plant's performance indexes as well as evaluate the global use of energy in each component. The thermoeconomic analysis allows evaluating the costs of capital and fuel reflexes in the composition of the products (steam and electricity) costs.

Keywords : Cogeração de energia; Termoeconomia; Usina sucroalcooleira.