THERMAL CONDUCTANCE OF MULTILAYERED METALLIC SHEETS

被引：7
作者：
FLETCHER, LS
BLANCHARD, DG
KINNEAR, KP
机构：
[1] TEXAS A&M UNIV SYST, DEPT MECH ENGN, COLL STN, TX 77843 USA
[2] ALCOA LABS, DEPT MECH ENGN, ALCOA CTR, PA 15069 USA
来源：
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER | 1993年 / 7卷 / 01期
关键词：
Heat transfer - Thermal conductivity of solids;
D O I：
10.2514/3.11578
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An experimental investigation was conducted to determine the thermal conductivity, the overall thermal conductance, and the thermal contact conductance between layers of stacked aluminum alloy 3004, 5042, and 5182 sheet. Tests were conducted for aluminum sample thicknesses of 0.0305-0.3074 cm (0.012-0.121 in.), mean junction temperatures of 79.5 and 165.5-degrees-C (175 and 330-degrees-F), and contact pressures of 0.689-10.34 MPa (100-1500 psi). The overall thermal conductance increased with increasing contact pressure and increasing temperature. It decreased as the number of aluminum layers was increased. The experimental data were used to derive thermal contact conductance between layers of stacked aluminum sheet. From these derived values, a correlation for the thermal contact conductance was developed. The resulting expressions are presented as a function of dimensionless parameters for the layer material, apparent contact pressure, and mean junction temperature.
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页码：120 / 126
页数：7
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