A solid iron sphere with a diameter of 5 mm is initially at a uniform temperature...
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A solid iron sphere with a diameter of 5 mm is initially at a uniform temperature of T₁=1550 °C and is suddenly quenched in a large oil bath for which To0,1 =135 °C and h₁=160 W/m².K. The properties of iron are p=7650 kg/m³, c=690 J/kg-K, k-34 W/m.K. The sphere is removed from the oil bath after 30 sec, and it is immersed in another fluid for which Too,295 °C and h₂=210 W/m² K during 30 sec. What is the temperature of the sphere in °C at the end of this process? A solid iron sphere with a diameter of 5 mm is initially at a uniform temperature of T₁=1550 °C and is suddenly quenched in a large oil bath for which To0,1 =135 °C and h₁=160 W/m².K. The properties of iron are p=7650 kg/m³, c=690 J/kg-K, k-34 W/m.K. The sphere is removed from the oil bath after 30 sec, and it is immersed in another fluid for which Too,295 °C and h₂=210 W/m² K during 30 sec. What is the temperature of the sphere in °C at the end of this process?
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