Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Energy generation in rankine cycle power plant from the incineration of forest residues
Submission Author:
Gilvana Scoculi de Lira , PR
Co-Authors:
Gilvana Scoculi de Lira, Beatriz Jacob Furlan, Rafael Silva Ribeiro Gonçalves, Dhyogo Miléo Taher, Marcelo Langer, Fernando Ferraz, Wellington Balmant, JOSÉ VIRIATO COELHO VARGAS, André Bellin Mariano
Presenter: Rafael Silva Ribeiro Gonçalves
doi://10.26678/ABCM.COBEM2023.COB2023-0133
Abstract
The utilisation of organic solid waste for energy generation has emerged as a promising and sustainable solution, aimed at mitigating environmental challenges, particularly those associated with fossil fuel consumption. Consequently, generating energy from forest biomass presents a viable and eco-friendly alternative, seeking to reduce greenhouse gas (GHG) emissions. An essential factor for the production and sustainable supply of bioenergy lies in the abundant availability of suitable raw materials. Among these, forestry pruning waste stands out as a significant utilised resource, often subjected to inefficient management and improper disposal in the environment. An environmentally responsible approach to leveraging these residues is through incineration, utilising the resultant hot gases from combustion for energy generation. Thus, the primary aim of this study was to quantify the energy generation potential from the forest pruning waste of UFPR. To achieve this objective, the organic waste from UFPR underwent chemical characterization through Proximate Analysis, as well as the determination of higher heating value and moisture content. To quantify the generation of electrical energy, a mathematical model was devised, simulating the steady-state operation of the incineration system. Additionally, a mathematical model of the Rankine cycle plant was developed, which predicted the required thermal exchange areas in the Rankine cycle plant. The analyses of the collected samples revealed heterogeneity, indicating low ash, as 0.76% and as moisture content a range from 10.67% to 16.80%, but conversely, an average of high higher heating value of 19.39 MJ.kg-1. The mathematical model predicted the potential of these residues to be sustainably utilised for electricity generation due the power output of 54.28 kW. Through the chemical analysis results, optimizations in the thermal exchange areas of the Rankine cycle plant were observed, leading to the efficient utilisation of hot gases generated from the incineration of these forest residues.
Keywords
Wood, Solid fuel, Rankine cycle, Incineration, energy generation
