Thermal analysis of cement panels with lignocellulosic materials for building
Laen...
Kuupäev
2020
Kättesaadav alates
Autorid
Ferraz, P.F.P.
Mendes, R.F.
Ferraz, G.A.S.
Carvalho, V.R.
Avelino, M.R.C.
Narciso, C.R.P.
Eugênio, T.M.C.
Cadavid, V.G.
Bambi, G.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The use of lignocellulosic material residue in cement composites can be considered as
a good option because they allow good thermal behaviour. This paper aimed to compare three
kinds of cement panels reinforced with different lignocellulosic materials (Coffee husk, Coconut
shell, and Banana pseudostem) based on their thermal properties. To produce each panel, the
methodology suggested by Souza (1994) was used. Six replicates of each lignocellulosic panel
with dimensions of 7.0×7.5 were evaluated. The thermal analysis was performed in a chamber
composed of MDP (medium density particleboard). The chamber contained the heat source
(incandescent lamp) connected to a thermostat that maintained the temperature at 48.0 °C. The
porosity and thickness of the panels and the thermal behaviour of each sample panel (thermal
conductivity, resistivity, resistance, and transmittance) and the difference in temperature of both
sides of the panel were evaluated. The temperature difference to stabilization was obtained after
a sampling time of 200 minutes, with 1,000 readings of 12 s each. Although all the panels were
submitted under the same temperature, the inner and external superficial temperatures of the
coffee husk panels reached smaller values. Besides, coconut and banana pseudostem panels
presented the best results of thermal transmittance and thermal resistance. Thus, coconut shell
panels present the best thermal performance, which means that this panel might be an attractive
alternative building material, in terms of heat insulation for indoor applications.
Kirjeldus
Märksõnad
conductivity, thermal cameras, thermal transmittance, alternative building material, coffee husk, coconut shell, banana pseudostem, articles