A metal sphere with a diameter of 11.5 cm and is having an initial uniform temperature of 675 oC. The metal sphere is ex

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answerhappygod
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A metal sphere with a diameter of 11.5 cm and is having an initial uniform temperature of 675 oC. The metal sphere is ex

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A metal sphere with a diameter of 11.5 cm and is having aninitial uniform temperature of 675 oC. The metal sphere is exposedto the gas whose temperature is ….. oC. The heat transfercoefficient between aluminum sphere and gas is 195 W/m2.K.Determine the temperature of the metal sphere at 5 min after theexposure and also determine the time required to reach thetemperature of 400 oC after exposure. Take (density = 8954 kg/m3,Cp = 383 J/kg K, K = 406 W/m.K).
Cp = 383 J/kg K, K = 406 W/m.K).
Take the GAS TEMPERATURE AS 50 degree
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