In a power plant, pipes transporting superheated vapor are very common. Superheated vapor is flowing at a rate of 0.3 kg/s inside a pipe with 5 cm in diameter and 10 m in length. The pipe is located in a power plant at 20°C, and has a uniform pipe surface temperature of 100°C. If the temperature drop between the inlet and exit of the pipe is 30°C, and the specific heat of the vapor is 2190 J/kg·K, determine the heat transfer coefficient as a result of convection between the pipe surface and the surrounding.

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Alr, 20°C T = 100°C D= 5 cm Superheated vapor 0.3 kg/s L= 10 m Tin- Tout = 30°C