Publication: The effective thermal conductivity of insulation materials reinforced with aluminium foil at low temperatures
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Yüksel, Numan
Avcı, Atakan
Kılıç, Muhsin
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Springer
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Abstract
The effective thermal conductivity (ETC) of multilayer thermal insulation materials was experimentally investigated as a function of temperature (0-25 A degrees C). The materials consisted of binary/ternary glass wools or ternary expanded polystyrene foams reinforced with aluminium foil. The experimental measurements were performed using a guarded hot plate with temperature differences of 5, 10 and 15 A degrees C. The results indicated that significant correlations exist between ETC and the characteristics of the materials with decreasing temperature. The ETC decreases with reinforcement with aluminium foil at the same temperature or with temperature differences of 5 and 15 A degrees C. In addition, it was clearly observed that the ETC decreases sharply with decreased temperature. Consequently, reflective materials may reduce the ETC at low temperatures.
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Keywords
Thermodynamics, Mechanics, Heat-transfer, Fibrous insulation, Beds, Aluminum foil, Polystyrenes, Effective thermal conductivity, Expanded polystyrene foams, Experimental measurements, Glass wool, Hot plates, Insulation materials, Low temperatures, Multilayer thermal insulation, Reflective materials, Temperature differences, Reinforcement
Citation
Yüksel, N. vd. (2012). "The effective thermal conductivity of insulation materials reinforced with aluminium foil at low temperatures". Heat and Mass Transfer, 48(9), 1569-1574.