Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
CHARACTERIZATION OF RESIDUAL POWDERS FROM URBAN ARBORATION FOR FEASIBILITY ANALYSIS FOR SOLID FUEL PRODUCTION
Submission Author:
ISAAC ANDERSON ALVES DE MOURA , CE
Co-Authors:
ISAAC ANDERSON ALVES DE MOURA, Joelda Dantas, Elvia Leal, Philip Alexandre Araújo Ventura dos Santos, Francielle Cristine Gonçalves, Kelly Cristiane Gomes
Presenter: Francielle Cristine Gonçalves
doi://10.26678/ABCM.COBEM2023.COB2023-2203
Abstract
OBJECTIVES. To assess the technical feasibility and potential of utilizing biomass energy derived from the powder generated by urban forestry waste, based on its physical-chemical characterization, for the production of briquettes. CONTEXT AND RELEVANCE OF THE RESEARCH. The growth of society and economic activities generate an increase in the energy demand that sustains the productive processes, mainly in the industrial and transport sectors. Therefore, it is necessary to seek activities that cause less environmental impact. Ergo, this study was designed to perform a chemical and energy characterization of residual biomass from the species Nim (Azadirachta indica), Acacia (Acacia cyanophylla), and Ficus (Ficus benjamina), resulting from afforestation in the municipality of Lavras da Mangabeira-CE, with the objective of assessing their energy potential. METHODOLOGY. Tree residues of the aforementioned species were collected and subjected to a pre-treatment, which involved drying at 100°C for 24h, crushing, and passing through an 80 mesh sieve. To determine the moisture content, 1g of the residue was used on a dry basis. The moisture content was determined by measuring the weight loss of the product subjected to heating at 105°C until it reached a constant weight. The ash content was determined by incinerating the sample at 550°C until obtaining a light-colored ash. To investigate the energy characterization of the produced powders, the higher heating value was determined according to ASTM D5865-13 standard. RESULTS. The moisture content for the Nim residue was 8.80%, for the Acacia residue was 9.15%, and for the Ficus residue was 9.20%. The ash content results showed an average of 12.20% for the Nim residue, 9.86% for the Acacia residue, and 17.30% for the Ficus residue, for each gram of the selected residue. This study determined the calorific value, which expresses the energy produced as heat during the energy process. The Nim residue presented a value of 19.198 MJ.Kg-1, Acacia presented 19.505 MJ.Kg-1, and Ficus presented 17.339 MJ.Kg-1. CONCLUSION. Fuel quality is usually associated with calorific values, as the higher it is, the greater the amount of energy contained in the material. Therefore, this preliminary study using arborization residues showed that they can be used as raw material. Among the obtained higher heating values, it stands out that the highest values were derived from the biomass of Nim and Acacia species. So, it can be concluded that the residues from tree pruning can be potentially used as solid biofuel in more sustainable energy processes.
Keywords
Tree residue, Powder, Calorific value, Solid fuel, Briquette
