Banca de DEFESA: MATEUS SANTOS NEPOMUCENO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : MATEUS SANTOS NEPOMUCENO
DATA : 30/07/2019
HORA: 10:30
LOCAL: Anfiteatro do Departamento de Engenharia Mecânica (Sala 100)
TÍTULO:

THEORETICAL-EXPERIMENTAL DRYING ANALYSIS USING SOLAR DRYERS WITH DIFFERENT ABSORBING PLATE FORMATS

PALAVRAS-CHAVES:

Solar drying. Energy efficiency. Exergetic efficiency.

PÁGINAS: 96
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Mecânica
SUBÁREA: Engenharia Térmica
ESPECIALIDADE: Aproveitamento da Energia
RESUMO:

Drying is one of the earliest known unit operations. Currently, it is mainly applied in the food industry, in addition to several processes, such as in ceramic enterprises. Through vaporization, this process removes liquid content, usually water, from a solid material. One way of protecting the product to be dried, reducing its drying time and increasing efficiency is the use of dryers, which can be of several models. Solar dryers, which are integrated, distributed or mixed, stand out due to the use of an abundant and renewable source of energy. In the case of the mixed, the solar radiation affects both the collector, where the air is heated and routed to the drying chamber, as well as in the chamber itself. In order to increase drying efficiency in the mixed dryers, the air from the collector can be brought into the drying chamber at a temperature higher than that normally achievable. Thus, the presence of obstacles in the collector can increase the air path, causing it to become warmer. The objective of this work was to compare the energy and exergetic efficiencies of a mixed active solar dryer with traditional flat plate and flat plate with baffles, determining the drying curves. The products used for drying were ceramic bricks, which remained for 12 hours in a container before each experiment. A test was performed with baits and two without, due to the cloudiness on one of the days. The non-baffled tests had mean exergetic efficiencies higher than those with baffles in (0.52±0.10)% and (0.22±0.12)%, and the baffle tests showed the other average efficiencies greater, surpassing the experiments without (5.84±1.87)% and (9.08±2.05)%, drying (5.40±1.40)% and (7.34±1.53)% and in the latent exergetics in (0.24±0.05)% and (0.49±0.05)%. The final moisture content of the baffle assay was lower (0.33±0.01)% and (1.91±0.01)% in the wet basis and (0.39±0.01)% and (2.32±0.01)% on dry basis than on non-baffles. Thus, the insertion of baffles in the dryer collector plate made its performance superior to that of traditional flat plate equipment.

MEMBROS DA BANCA:
Presidente - ANDRE GUIMARAES FERREIRA
Externo à Instituição - LUCAS PAGLIONI PATARO FARIA - UNA
Interno - PAULO EDUARDO LOPES BARBIERI