Banca de DEFESA: MATHEUS CAMPOS MATTIOLI

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE: MATHEUS CAMPOS MATTIOLI
DATA: 23/12/2021
HORA: 09:00
LOCAL: Google Meet
TÍTULO:

THERMAL ENVIRONMENT IN DIFFERENT TYPES OF COVERING, LINING AND UNDERCOVERING WITH RECYCLED AND LOW-COST MATERIALS IN REDUCED-SCALE MODELS

PALAVRAS-CHAVES:

Rural buildings. Animal Housing Environment. Environmental Indexes. Thermal Comfort Indexes. Shelters Environmental Assessment. Alternative Covering Materials.

PÁGINAS: 10090
GRANDE ÁREA: Ciências Agrárias
ÁREA: Engenharia Agrícola
SUBÁREA: Construções Rurais e Ambiência
ESPECIALIDADE: Engenharia de Construções Rurais
RESUMO:

The roof greatly influences the thermal environment of a facility, either by radiating heat to its interior or losing to the external environment. The use of alternative materials and techniques in these structures is a way to integrate affordable materials and, in some cases, to mitigate problems related to the thermal comfort of the occupants and the disposal of waste in the environment. The objective of the present study was to evaluate the behaviours of different roofs, ceilings, sub-roofs, and reflective paint in reduced-scale distorted models in summer conditions. The work was divided into two stages. The first tested the following materials: ceramic tiles, galvanized steel tiles, galvanized steel tiles with Tetra Pak® packaging sub-roof, galvanized steel tiles with Tetra Pak® packaging liner, galvanized steel with thatch grass lining, and galvanized steel tiles with thatch grass sub-roof. In the second stage, the roofs tested were French ceramic tiles, aluminium tiles, galvanized steel tiles, corrugated fibre cement roofing tiles, galvanized steel tiles painted white, and corrugated fibre cement tiles painted white. Data were collected during the summer, from 9 a.m. to 5 p.m., at intervals of 15 minutes. The measurement instruments used were air temperature, relative humidity, and black globe temperature sensors coupled to a Hobo® U12-013 datalogger, with ± 0.35 °C from 0 to 50 °C, ± 2.5% relative humidity from 10% to 90% precision; and an Extech hot wire thermoanemometer, model Sdl350, with ± 0.01 ms-1 precision. The reuse of Tetra Pak® packaging as a lining or undercoating material resulted in a significant improvement in the thermal comfort indices. Therefore, the use of alternative materials provided a significant reduction in the heat transfer from the tiles to the interior of the dwelling, showing that they are viable materials in economically vulnerable regions and under conditions of high solar radiation. Using the data collected in the second stage of this study, the globe temperature and humidity index, temperature and humidity index, enthalpy, and effectiveness of each roofing material were calculated. The painting of fibre cement tiles white showed the lowest values of the thermal comfort indices. The galvanized steel tiles painted white did not improve the indices of the thermal environment. It can be concluded that reflective painting on fiber cement tiles is a viable option for improving the thermal comfort of buildings.

MEMBROS DA BANCA:
Externo à Instituição - ALLAN ALVES FERNANDES - Unipampa (Membro)
Externo à Instituição - LUCAS HENRIQUE PEDROZO ABREU - UFLA (Suplente)
Externo à Instituição - ELCIO SILVERIO KLOSOWSKI - UNIOESTE (Membro)
Externo ao Programa - ALESSANDRO VIEIRA VELOSO - DEG/EENG (Suplente)
Externo ao Programa - LEONARDO SCHIASSI - DEA/EENG (Membro)
Interno - TADAYUKI YANAGI JUNIOR (Membro)
Presidente - ALESSANDRO TORRES CAMPOS (Membro)