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Question: problem 8 radiation an uninsulated steam pipe of 2...

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Problem 8 - Radiation An uninsulated steam pipe of 2 m long passes through a room in which the air and the walls are 300 K The outside diameter of the pipe is 70 mm and its surface temperature and emissivity are 450 K and 0.8, respectively. What is the rate of heat transfer from the surface, in kJ/s? If the rate of heat transfer remained the same when the pipe was changed to polished copper, what would the new surface temperature be, in ка pipe was changed to polished coper

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