Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Combined solar-biomass steam generation for using in a poultry slaughterhouse system
Submission Author:
Teresa Guadalupe Almeida , SC
Co-Authors:
Teresa Guadalupe Almeida, Edson Bazzo, Katia Fagnani, Eduardo Burin
Presenter: Teresa Guadalupe Almeida
doi://10.26678/ABCM.COBEM2017.COB17-0646
Abstract
The present work aims to evaluate the thermodynamic and economic feasibility of integrating a Fresnel solar field to produce saturated steam in parallel with a biomass steam generator to supply the heat load demand of a poultry slaughterhouse located in Palotina - PR, Brazil. The biomass steam generator has a nominal capacity of 40 t/h of saturated steam at 9 bar and the Levelized Cost of Heat (LCOH) was calculated as 54.1 R$/MWht. The Fresnel solar field was sized to produce 50 % of total steam (20 t/h) at design point condition. In addition, annual simulations were performed to estimate the biomass economy and annual savings due to the hybrid operation. The DNI design point condition was set as 950 W/m2 corresponding to 21th December solar noon. The thermodynamic and solar models were developed in the Engineering Equation Solver EES ® and Matlab®. The net area of solar field needed was 12.2 hectares, presenting an average annual thermal and optical efficiencies of 46.37 % and 47.6 %, respectively. The hybrid plant showed an efficiency of 82.18 %, producing annually 239.85 GWht of thermal energy while LCOH reached 62.8 R$/MWht.
Keywords
Thermal Energy, Levelized Cost of Heat, Fresnel Field, Solar-biomass hybridization, biomass economy, steam generation
