Banca de DEFESA: Fernanda Medeiros e Silva

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Fernanda Medeiros e Silva
DATE: 01/06/2023
TIME: 14:00
LOCAL: TEAMS
TITLE:

EXPERIMENTAL AND NUMERICAL MODELING OF SOLAR CONCENTRATORS FOR DRYING SUGARCANE BAGASSE

KEY WORDS:

Solar Concentrator; Sugar cane; Temperature Gradient; FEM; Abaqus.

PAGES: 95
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Mecânica das Estruturas
SUMMARY:

The conversion of solar energy into thermal energy through Concentrated Solar Energy (CSE) has become an alternative for the drying process of materials. Sugarcane bagasse, a residue of great impact on the Brazilian agroindustry, which can be easily used as biomass, has its use reduced due to its high moisture content, that is, low efficiency in energy production. This work aims to analyze experimental results, using solar concentrators built from plane mirrors inclined in metallic structure that converge to the solar radiation in a central focus, the reactor.These experiments were tested with water and sugarcane bagasse, which enabled the characterization of reactors, in order to improve them in the drying process. From these experiments, using the Abaqus software and the Finite Element Method (FEM), the most efficient reactor was modeled and analyzed both in steady and transient state. From the boundary conditions obtained in the experimental phase, it was possible to find the temperature variation over time, the thermal stresses, deformations and displacements of the structure, in a way that was quite convergent with the tested results.Finally, it was also concluded that the radiation reached in the reactor was a preponderant factor in the efficiency necessary for drying the bagasse, since there was a non-uniform distribution of stresses and, consequently, finding weaknesses in the areas of discontinuities of the structure of the reactor. reactor. This resulted in greater stresses and deformations, locating possible fatigue failure points.

BANKING MEMBERS:
Presidente - 1439182 - GILBERTO GOMES
Interno - 6669206 - LUCIANO MENDES BEZERRA
Interno - 404840 - WILLIAM TAYLOR MATIAS SILVA
Externo à Instituição - WENDELL ROSSINE MEDEIROS DE SOUZA - UFERSA