A 2 5 cm diameter sphere at 1 2 0 C is suspended in air at 2 0 C If the convention heat transfer coefficient between the sphere and the air is 1 5 W m 2 C , determine the rate of heat loss from the sphere I am interested in the process of how to do this since I am confused on how to get to the answer the professor provided The Answer 2 9 4 5 W

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Question: A 2 5 cm diameter sphere at 1 2 0 C is suspended in air at 2 0 C . If the convention heat transfer

25

cm diameter sphere at

120 C

is suspended in air at

20 C .

If the convention heat transfer coefficient between the sphere and the air is

15 \frac{W}{m^{2}} C,

determine the rate of heat loss from the sphere. I am interested in the process of how to do this since I am confused on how to get to the answer the professor provided. The Answer

294.5

A 2 5 cm diameter sphere at 1 2 0 C is suspended

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