A silicon chip measuring 5mm by 6mm and of thickness 1mm is
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A silicon chip measuring 5mm by 6mm and of thickness 1mm is embedded in a ceramic substrate.At a steady state,the chip has an electrical power input of 0.3W.The top surface of the chip is exposed to a coolant whose temperature is 20°C.The heat transfer coefficient for convection between the chip and coolant is150 W/(m2.K).If the heat transfer by conduction between the chip and substrate is negligible,determine the surface temperature of the chip.
[Answer:86.7°C]
[Answer:86.7°C]
的确是传热学题目,最简单的对流传热牛顿冷却公式的应用.热流量=对流传热系数×传热表面积×温差,即0.3w=150×0.005×0.006×(t-20),解方程就可以了,t=86.7℃
diameter of 28mm and thickness of 12 mm
diameter of 28mm and thickness of 12 mm请那位可以帮忙准确翻译一下,谢谢!
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