Engineering, 06.05.2020 08:28 helloyall40
Steel balls 10 mm in diameter are annealed by heating to 1150 K and then slowly cooling to 450 K in an air environment for which T[infinity] = 325 K and h = 25 W/m2 ·K. Assuming the properties of the steel to be k = 40 W/m·K, rho = 7800 kg/m3 , and c = 600 J/kg·K, estimate the time required for the cooling process.
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Steel balls 10 mm in diameter are annealed by heating to 1150 K and then slowly cooling to 450 K in...
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