Physics, 06.05.2020 03:32 samyajones68
A short brass cylinder (rho = 8530 kg/m3, cp = 0.389 kJ/kg⋅K, k = 110 W/m⋅K, and α = 3.39×10−5 m2/s) of diameter 4 cm and height 20 cm is initially at a uniform temperature of 150°C. The cylinder is now placed in atmospheric air at 20°C, where heat transfer takes place from the cylinder 15 min after the start of the cooling by convection with a heat transfer coefficient of 40 W/m2⋅K. Solve this problem using the analytical one-term approximation method.
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A short brass cylinder (rho = 8530 kg/m3, cp = 0.389 kJ/kg⋅K, k = 110 W/m⋅K, and α = 3.39×10−5 m2/s)...
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