YÜKSEL, Numan Bursa Teknik Üniversitesi - Doğa Bilimleri Mimarlık Mühendislik Fakültesi - Mekatronik Mühendisliği Bölümü, Turkey , AVCI, Atakan Uludağ Üniversitesi - Mühendislik-Mimarlık Fakültesi - Makine Mühendisliği, Turkey

The Effect of Reinforcement on the Thermal Behavior of Insulation Materials

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In this study, the effect of convection and radiation in porous insulation materials on the effective thermal conductivity has been experimentally investigated in terms of the reinforcement. The experiments have been performed on two standard test apparatus and the other experimental setup in which an application is done. For this purpose, the glass wool materials are reinforced with low emissivity and conductive materials, such as stretch nylon, thin foil and white paper, and their thermal effective conductivities are determined. From experimental results, it is observed that the effective thermal conductivity of porous insulation materials reinforced with thin foil is decreased at 0 °C and 10 °C temperatures under the average temperature of 20 °C. The effective thermal conductivity of porous insulation material reinforced with thin foil is decreased up to 9 %. In the applied experimental setup, it found that the warming time of unreinforced ternary glass wool is 28,57 % slower than that of the other reinforced sample. Also, the ETC of glass wool insulation materials improved by using low-reflectivity materials such as stretch nylon and white paper, which are similar to those of the unreinforced glass wool. From these results, it is seen that the radiation is an important mechanism and it can form the effects except for standard behavior.

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Insulation material , Reinforcement , Thermal conductivity , Temperature , Temperature Change.

Uludağ University Journal of The Faculty of Engineering

90