Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
ESTIMATION OF SUGARCANE-BAGASSE ECONOMICS IN A COGENERATION PLANT WITH THE ADDITION OF A CSP SYSTEM
Submission Author:
Paula Gurgel , DF , Brazil
Co-Authors:
Paula Gurgel, Mario Benjamim Baptista de Siqueira, Raflem Santos, Carlos Veras
Presenter: Paula Gurgel
doi://10.26678/ABCM.COBEM2019.COB2019-2339
Abstract
The objective of this work was to calculate the quantity of bagasse saved in a sugar-alcohol plant with cogeneration from the implementation of a concentrated solar energy central tower system, without thermal storage, in the harvest period. The solar field would act in parallel to the boiler, both always supplying the plant's steam demand. The boiler load would vary depending on the solar radiation received. For this model, the SAM software was used, which for a solar field of 45 MW, provided data of a typical solar year, and the amount of heat generated in the solar field. In order to determine the mass flows in the solar field and in the boiler, their respective energy balances and the internal heat exchange ratios of the boiler were considered. The results showed that with the implantation of the solar field, there was a bagasse savings of about 27%, which would generate a stock nearby 77 thousand tons of bagasse, which is approximately 5.5 times more than the current safety stock of the plant, and could be used in the off-season. In addition, with this leftover of bagasse, the plant would solve the problem of the amount of bagasse generated being less than the demand of the turbines.
Keywords
CSP System, Sugarcane biomass, Hybrid System, Biomass Saving
