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heat transfer Ball of 25cm diameter made of stainless steel (p = 8000 kg m' is removed from oven at a temperature of 300 C

heat transfer
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Ball of 25cm diameter made of stainless steel (p = 8000 kg m' is removed from oven at a temperature of 300 C and cooled down to 200 C by keeping it in a room which is maintained at 25 C. The air velocity is estimated to be 3 m/s. Estimate the heat transfer coefficient during this cooling process by using an appropriate correlation

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