The effective thermal conductivity of insulation materials reinforced with aluminium foil at low temperatures

被引：11

作者：

Yuksel, N. ^{[1
]}

Avci, A. ^{[1
]}

Kilic, M. ^{[1
]}

机构：

[1] Uludag Univ, Dept Mech Engn, TR-16059 Bursa, Turkey

来源：

HEAT AND MASS TRANSFER | 2012年 / 48卷 / 09期

关键词：

HEAT-TRANSFER; FIBROUS INSULATION; BEDS;

D O I：

10.1007/s00231-012-1001-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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.

引用

页码：1569 / 1574

页数：6

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