Effect of porosity on thermal conductivity of porous materials

Autor:	Hussein Humaish
Rok vydání:	2020
Předmět:	Thermal conductivity Materials science Thermal insulation business.industry Thermal probe Rotational symmetry Glass wool Composite material Porous medium Porosity business Heat power
Zdroj:	IOP Conference Series: Materials Science and Engineering. 737:012185
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/737/1/012185
Popis:	The basic idea of porous materials has been used in different applications of engineering science especially regards to thermal insulation. In this study the effect of porosity on thermal conductivity has been investigated experimentally by using Cylindrical thermal probe (TP02® Hukseflux). During transmission the heat power in the probe, the temperature is variation as a function of the natural logarithm. The slope of the graph is representing the proportion inverse to the thermal conductivity. Different materials in terms of porosity have been selected to identify influence of porosity on thermal conductivity. At first fluid material (glycerol) with no porosity, and after that glass beads of different diameters to introduce the porosity and different types of glass wool as an example of insulation materials. Comsol Multiphysics® axisymmetric module 2-D has been used to validate the experimental results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::04b3624627d6d02b7d028210e5572f28 https://doi.org/10.1088/1757-899x/737/1/012185 Zobrazit plný text záznamu