Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
EXERGETIC ANALYSIS OF A HYDRID SOLAR-BIOMASS COGENERATION POWER PLANT FOR A POULTRY INDUSTRY APPLICATION
Submission Author:
João Damasceno Xavier Neto , SC
Co-Authors:
João Damasceno Xavier Neto, Edson Bazzo, Eduardo Burin
Presenter: João Damasceno Xavier Neto
doi://10.26678/ABCM.COBEM2021.COB2021-1007
Abstract
The increasing energetic demand around the world, the depletion of non-renewable energy reserves, as well as the corresponding environment impacts, boosted the search for using renewable sources. However, it is still necessary to overcome the drawbacks regarding the intermittence and high costs of renewable technologies. In this context, a hybrid system can integrate different types of renewable sources in order to mitigate each other technological disadvantages. This work aims to evaluate, on the exergetic perspective, the integration of a Fresnel solar field with a biomass cogeneration power plant considering the feedwater heating and the direct steam generation (DSG) schemes. The cogeneration power plant was designed to supply 12 MWe and 16 t/h of saturated steam at 10 bar for a poultry industry in for two different locations in Brazil (Palotina-PR and Barreiras-BA). Superheated steam feeds a condensing-extraction steam turbine (CEST). A single extraction supplies steam for the process and the deaeration of the working fluid. The hybridized plants save biomass on sunny hours so that, in the design condition, the fuel consumption is reduced by up to 53 % and 8.5 % for the DSG and feedwater heating schemes, respectively. Yet, the found results showed that for each hybrid scheme the exergy destruction was increased if compared to the scenario using biomass only.
Keywords
cogeneration, Hybrid System, Biomass, Solar Energy, Exergetic Analysis
